Rør, hvis du tør



Re: Rør, hvis du tør - 1101 Audio

IndlĂŚgaf kvik » 28. jan 2014, 13:51

1101 Blue Halo (base build $1795)

1101 Blue Halo.jpg
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BLUE HALO is a dedicated amp for high impedance headphones such as the Sennheiser HD600/650/800, ZMF Verite/Verite C, Beyerdynamic, etc. (anything with 200+ ohm impedance). It's a design that eliminates the need for 6AS7/6080/5998 power tubes for output power. It has two 6J5 sockets and a 6SN7 socket. You can plug in a pair or 6J5, a single 6SN7, or both at the same time. With the use of adapters (purchased separately), hundreds (even thousands) of other types of tubes can be used within the sockets as well (including C3G, 12AU7, 12BH7, and many many others). A 12V switch is also included at the back of the unit in order to use 12V tubes. It produces ~1 watt into 300ohms, more than enough for all high impedance headphones.

BLUE HALO is designed to have a clean, neutral, detailed and smooth sound with great bass. Tube rolling alters the tone of the amp at your preference (e.g. warmer tubes, more detailed tubes, more mids, etc.). The tubes get "supercharged" so that they can produce as much power as 6AS7/6080 power tubes, while fully determining the tone. Not having the 6AS7/6080 tubes means one less gain stage between the input and output = More clarity. The high voltage power supply uses only high quality wax/oil filled polypropylene film caps. Output capacitor are also high quality wax/oil filled polypropylene film capacitors. This means there are zero electrolytics within the signal path - something that no other OTL tube amp has!

BLUE HALO does not use tube rectification, it uses my own custom designed circuit using critically damped and resistively bounded HEXFRED rectification followed by a high voltage Maida style super regulator and utilizing a wax/oil polypropylene capacitor. This is a much better alternative to tube rectification as it leads to better overall tonal quality, better bass and cleaner overall tone. This also gives deeper blacks and bigger soundstage than tube rectification. It also uses regulated DC on the heaters for a very quiet background and zero hum.

BLUE HALO has a base build that includes Neutrik RCA & XLR inputs, Neutrik TRS and 4pin XLR outputs, CNC Engraving, QQQ sockets, Alps Blue velvet pot, and high quality copper internal wiring.

Potential upgrade options include: Lundahl power transformer, Stepped Attenuator (e.g. Acoustic Dimension, Goldpoint, Khozmo, etc.), Kiwame power resistor upgrade, Vishay/Dale RN55/RN60 signal resistor upgrade, Supercharger capacitor upgrades, vibration isolation feet, tube socket upgrades, 2% silver solder, and RCA/XLR connector upgrades. VU Meters are also possible.

See link HERE for explanation of what each of the upgrade options does for the Blue Halo.


https://1101audio.com/BlueHaloOTL.html



1101 Blue Halo+ (COMING SOON) (base build $2335)

1101 Blue Halo+.png
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BLUE HALO+ shares many of the same traits as its brother, the Blue Halo. The Blue Halo+ is essentially the Blue Halo that you've seen on the forums, but also has 6 sockets for power tubes (from the family of 6AS7/6080/5998/6BL7/6BX7). It has a switch at the back that allows you to change between the regular Blue Halo output (using only the driver tube(s) to determine amp tone), or output from the power tube sockets (signal goes through driver tubes as well as power tubes for extra tube harmonics). This gives both the benefit of having the regular Blue Halo output, as well as the extra power tube stage with extra distortion when switched to it - kind of like two amps in one! 

Similar to the Blue Halo, the Blue Halo+ is a dedicated amp for high impedance headphones such as the Sennheiser HD600/650/800, ZMF Verite/Verite C, Beyerdynamic, etc. (anything with 200+ ohm impedance). For driver tubes, it has two 6J5 sockets and a 6SN7 socket. You can plug in a pair or 6J5, a single 6SN7, or both at the same time. With the use of adapters (purchased separately), hundreds (even thousands) of other types of tubes can be used within the driver tube sockets as well (including C3G, 12AU7, 12BH7, and many many others). A 12V switch is also included at the back of the unit in order to use 12V tubes. In the power tube sockets, you can run 2 or 4 6080/6AS7/5998, or 6 6BL7/6BX7. If you'd like a Blue Halo+ with less power tube sockets (e.g. just 2 or just 4 power tubes sockets) that is possible as well.

BLUE HALO+ is designed to have a clean, neutral, detailed and smooth sound with great bass. Tube rolling alters the tone of the amp at your preference (e.g. warmer tubes, more detailed tubes, more mids, etc.). In Blue Halo mode, the driver tubes get "supercharged" so that they can produce as much power as 6AS7/6080 power tubes, while fully determining the tone. Not having the 6AS7/6080 tubes means one less gain stage between the input and output = More clarity. In Blue Halo+ mode, the signal goes through both the driver tubes and the power tubes, with each contributing to the tone and output harmonics. Using the power tubes in Blue Halo+ mode will naturally lead to increased harmonics and slightly more tube tone (Note: Still not a "tubey"/"lush" amp!).

BLUE HALO+ does not use tube rectification, it uses my own custom designed circuit using critically damped and resistively bounded HEXFRED rectification followed by a high voltage Maida style super regulator and utilizing a wax/oil polypropylene capacitor. This is a much better alternative to tube rectification as it leads to better overall tonal quality, better bass and cleaner overall tone. This also gives lower noise floor and bigger soundstage than tube rectification. It also uses regulated DC on the heaters for a very quiet background and zero hum. The high voltage power supply uses only high quality wax/oil filled polypropylene film caps. Output capacitor are also high quality wax/oil filled polypropylene film capacitors. This means there are zero electrolytics within the signal path - something that no other OTL tube amp has!

In Blue Halo mode it produces ~1 watt into 300ohms, more than enough for all high impedance headphones. In Blue Halo+ mode it produces ~2 watt.

BLUE HALO+ has a base build that comes standard with the upgraded Lundahl power transformer. The base build also includes Neutrik RCA & XLR inputs, Neutrik TRS and 4pin XLR outputs, CNC Engraving, QQQ sockets, Alps Blue velvet pot, and high quality copper internal wiring.

Potential upgrade options include: Stepped Attenuator (e.g. Acoustic Dimension, Goldpoint, Khozmo, etc.), Kiwame power resistor upgrade, Vishay/Dale RN55/RN60 signal resistor upgrade, Supercharger capacitor upgrades, vibration isolation feet, tube socket upgrades, 2% silver solder, and RCA/XLR connector upgrades. VU Meters are also possible.

See link HERE for explanation of what each of the upgrade options does for the Blue Halo+ 


https://1101audio.com/BlueHalo+OTL.html



1101 White Dwarf (base build $1920)

1101 White Dwarf.jpg
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White Dwarf is a tube-hybrid amplifier designed to meet the needs of driving any impedance headphone currently available on the market, from planars to dynamics. In the White Dwarf, the tube does the amplification and the tone of the amp is dictated by which tube is rolled in to the amp. There is a "source-follower" that follows the output from the tube and acts as a "buffer" to increase the amount of power the amp can put out, all while imparting very little solid state tone. This gives an amp with the smoothness of tubes, combined with the raw output power of solid-state. White Dwarf has the power to work with any headphone on the market, including the HE-6, and can even be used to run high efficiency speakers. It has two 6J5 sockets and a 6SN7 socket. You can plug in a pair of 6J5, a single 6SN7, or both at the same time. With the use of adapters (purchased separately), hundreds (even thousands) of other types of tubes can be used within the sockets as well (including C3G, 12AU7, 12BH7, and many many others).

White Dwarf is designed to retain most of the transparency found within the Blue Halo amplifier, but with a slight added touch of increased distortion/warmth. Tube rolling alters the tone of the amp at your preference (e.g. warmer tubes, more detailed tubes, more mids, etc.). The high voltage power supply uses only high quality oil filled polypropylene film caps. The amp is always Class A biased with very heavy bias current for a headphone amp - something that smaller chassis tube-hybrid amplifiers just can't handle. Because it is pure class A biased, it also has none of the non-linear crossover distortion found in class AB amplifiers. The White Dwarf is zero feedback. It produces approximately 10W into 8ohm, 5.5W into 30 ohm, 2.5W into 80ohm, 0.6W into 300ohm.

White Dwarf has a base build that includes Neutrik RCA & XLR inputs, Neutrik TRS and 4pin XLR outputs, gold-plated brass speaker binding posts at the rear, CNC Engraving, QQQ sockets, Alps Blue velvet pot, and high quality copper internal wiring.

Potential upgrade options include: Lundahl power transformer, Stepped Attenuator (e.g. Acoustic Dimension, Goldpoint, Khozmo, etc.), 6/12V Voltage Switch, Anode Resistor/Constant Current Source Tube Bias Switch, Kiwame power resistor upgrade, Vishay/Dale RN55/RN60 signal resistor upgrade, Coupling capacitor upgrades, Vibration isolation feet, Tube socket upgrades, 2% silver solder, and RCA/XLR connector upgrades. VU Meters are also possible.

See link HERE for explanation of what each of the upgrade options does for the White Dwarf.


https://1101audio.com/White-Dwarf-Tube-Hybrid.html



Other 1101 offerings
1101 Custom OTL
1101 Custom transformer-coupled SET


User thread on head-fi.org
https://www.head-fi.org/threads/1101-au ... mps.919425
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Re: Rør, hvis du tør - iFi Audio

IndlĂŚgaf kvik » 28. jan 2014, 15:47

iFi Pro iDSD Signature ($3250)

iFi Pro iDSD Signature.jpg
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Standalone. Streamer. DAC/amp. All with the X-factor.
The Pro iDSD Signature is our new flagship reference class DAC and then some! The Signature edition builds on the strengths of the original, multi-award winning Pro iDSD. It continues to cater for those who love good music delivered at the highest quality. Use the Pro iDSD Signature as a standalone unit, a DAC/preamp, a network streamer and a headphone amplifier.

A Signature step up
The Signature takes the original Pro iDSD and pushes it even further towards perfection. The Pro iDSD Signature has:
• a sonically darker background and a punchier bass
• upgraded power-supply components to lower the overall system noise by 300%
• precisely matched NOS GE5670s tubes
• added support for USB1.0 (PS4/PS5)
• a new aluminium remote control
• a top-of the range iPower Elite power supply included

Stacked. With tech.
The Pro iDSD Signature uses a quad-stack DAC – 4 x DACs in an interleaved configuration – to deliver exceptional resolution.
The powerful XMOS XU216 X-Core 200 series chipset processes incoming digital data and enables the Pro iDSD Signature to provide state of the art audio support – from MP3, 32-bit/768kHz PCM, DSD512, 2xDXD and full MQA decoding.
Thanks to the Crysopeia FPGA Digital Engine the Pro iDSD Signature brings studio grade DSD remastering to a wider audience. It can upconvert PCM and DSD files to DSD512 and DSD1024.
And all controlled from an app in the palm of your hand.

E-tailoring
The Pro iDSD Signature, like its predecessor, takes sonic tailoring to the extreme.
Listen to the your music to in solid-state, tube or tube+ modes, your choice, all at the flick of a switch.
Our Crysopeia FPGA Digital Engine strikes again as it enables the Pro iDSD Signature to offer several options when it comes to digital filtering. The GTO filter adds gravitas and a new dimension, and while the Bit Perfect, Bit Perfect+, Apodising and Transient Aligned filters give you even more choices to tweak the sound.
The discrete, fully balanced Class A amplifier stage offers adjustable gain.

Your choice. The only choice.
• Stream wirelessly from Tidal, Spotify, Napster, QQ Music and more
• Use Airplay to enjoy playback from your iPhone, iPad or Mac
• Go wired via an Ethernet connection to play from a router or NAS (Network Attached Storage)
• Use DLNA network audio playback with smartphones, tablets, Windows/Linux computers
• Connect to a hard disc drive (HDD)
• Pop in a USB memory stick or SDHC card
And with a variety of headphone outputs – Single-Ended 6.3mm, S-Balanced 3.5mm and Balanced 4.4mm – the only choice is your choice.

Power cleans. Absolute.
The Pro iDSD Signature ships with our flagship iPower Elite. Coupled with the re-crafted power supply board which offers up to 300x lower noise, the music is buttery smooth. Within and without – we left no stone unturned in our quest for the cleanest, purest, power for the Pro iDSD Signature (same for Pro iCAN Signature too!)


Specifications
• Sample rates: PCM 768kHz / DSD 49.152MHz (DSD 1024) / MQA 352.8KHz/DXD (2xDXD)
• Inputs: USB / AES3 (XLR) / S/PDIF (coaxial/optical combo) BNC / Ethernet / Wi-Fi / Micro SD
• Filters: Bit Perfect / Bit Perfect+ / Gibbs Transient Optimised / Apodising / Transient Aligned
• Gain: User-selectable: 0dB, 9dB and 18dB (headphone section)
• Dynamic range: 119dBA (solid-state, PCM, -60dBFS)
• Output power: (16, balanced/single-ended): >4,200mW /1>1,575mW
• Output voltage: (600, balanced/single-ended): >11.7V / >5.9V
• Input voltage (Pro iDSD): DC 9V/6.7A – 18V/3.35A
• Input voltage (iPower Elite): AC 85 – 265V, 50/60Hz
• Power consumption:< 22W idle, 50W max
• Dimensions: 213 x 220x 63 mm / 8.4" x 8.7" x 2.5"
• Net weight: 1980 g / 4.37 Ibs

https://ifi-audio.com/products/pro-idsd-signature/



iFi Pro iCAN Signature ($2250)

iFi Pro iCAN Signature.jpg
iFi Pro iCAN Signature.jpg (144.79 KiB) Vist 13742 gange

The Pro iCAN Signature is our new upgraded edition of the original Pro iCAN. The Signature edition builds on the strengths of the Pro iCAN and features even more ultra-grade audiophile components designed to take your listening to a higher plane than ever  before. It is a top-of-the-line headphone amplifier that is capable of driving anything and everything from the most sensitive custom iEMs to the AKG K-1000, the most difficult to drive headphone ever made.

Enhancements to the Pro iCAN Signature include:
• Revised circuit design incorporates even more ultra-grade audiophile components
• Upgraded power supply circuits to eradicate even more noise and distortion
• Top of the range iPower Elite offboard AC/DC power supply included
• Hand-selected and matched tubes in the output stage
• 4.4mm Balanced-headphone output
• New aluminium remote control

The Pro iCAN Signature sports an end-to-end fully differential balanced circuit design that delivers ultra low distortion. This means extraordinary quality with minimal interference and reduced crosstalk. The sound is cleaner, deeper and more dynamic. It is also exceptionally powerful and will drive any headphone on the planet. It boasts balanced output power of >14,000mW and single-ended power output of >4,800mW. And with variable gain, you can adjust the Pro iCAN Signature to drive your headphone of choice.

To tube or not to tube…? Or to Tube+? That is the question. With the Pro iCAN Signature you can enjoy the sound of solid-state or tubes in one single package. For some of your recordings, and depending on whether you are listening through headphones or speakers, you may prefer the ‘lively’ feel of solid-state or for others, the more ‘luxurious’ feel of Tube or Tube+. The choice is yours at the flick of a switch in real time.

The Pro iCAN Signature wouldn’t be ours without our signature sonic tweaks. Just like the original, it boasts XBass and 3D Holographic settings so that you can calibrate sound to suite your system and personal taste. XBass is our analogue ‘bass boost’ that enhances the low frequencies without muddying the mid-range. 3D Holographic for Headphones undoes the negative sonic impact of listening to recordings that were originally created for loudspeakers. 3D Holographic for Loudspeaker Systems corrects the spatial distortion and restores the natural soundstage.

The Pro iCAN Signature boasts a plethora of fully balanced and single-ended connections.
Headphone connections include the new 4.4mm Balanced output as well as a fully balanced XLR, a single-ended 6.3mm and our unique S-Balanced 3.5mm output. Our S-Balanced output cuts distortion by 50% with single-ended headphones connections.

The Pro iCAN Signature, ships with our flagship iPOWER Elite. Coupled with the re-crafted power supply board which is up to 300% quieter, the music is buttery smooth. Within and without – we left no stone unturned in our quest for the cleanest, purest, power for the Pro iCAN Signature (same for Pro iDSD Signature too!)


Specifications
• Gain (user-selectable): 0dB, 9dB and 18dB
• Headphone outputs:
XLR 3-pin (Balanced separate left and right sockets)
XLR 4-pin (Balanced stereo)
6.3mm (SE stereo positive phase)
6.3mm (SE stereo inverted phase)
BAL 4.4mm (Built-in IEMatch -18dB)
SE 3.5mm (Built-in IEMatch -14dB)
• Frequency Response: 0.5Hz to 500kHz(-3dB
• THD & N:
Balanced: Solid-State 0.0015% / Tube 0.002% / Tube+ 0.012%
Single-Ended: Solid-State 0.005% / Tube 0.005% / Tube+ 0.2%
• SNR: Balanced >147dB(A) / Single-Ended > 137dB(A)
• Output Power: Balanced >14,000mW (@ 16) / Single-Ended >4,800mW (@ 16)
• Output Voltage: Balanced >23V (@ 600) / Single-Ended >11.5v (@ 600)
• Input voltage (Pro iCAN Signature): DC 9V/6.7A – 18V/3.35A
• Input voltage (iPower Elite): AC 85 – 265V, 50/60Hz
• Power consumption: < 22W idle, 50W max
• Dimensions: 213 x 193 x 63 mm / 6.2" x 3.9" x 1.4"
• Net weight: 1.93 kg / 4.3 Ibs

https://ifi-audio.com/products/pro-ican-signature/



iFi Retro Stereo 50 (Stereo 50 amplifier $1600 / LS3.5 speakers $800)

iFi Retro Stereo 50.jpg
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Starting with the Stereo 50, the iFi Retro is a completely new range that has one objective: to include everyone who loves music regardless of age, gender or technology. The Retro Stereo 50 is an all-in-one tube stereo system: from Bluetooth aptx (phone/pad) to High-res digital (computer) to vinyl (turntable). Everyone can bring their music and be able to connect to the Stereo 50 and produce music that simply astounds. There really is nothing like the Retro Stereo 50.

AMR and iFi are renowned for combining classic valve technology with state-of-the-art digital technology such as in the prestigious AMR DP-777 Digital Processor. The Stereo 50 is the latest from a long line of outstanding products. It features 4xEL84X and 2xECF82 tubes with a stunningly advanced ground-up circuit that has DNA from the best of classic amplifiers such as Telefunken, Marantz and Leak. Running primarily in Class A, its 25W+25W is and sounds astonishingly realistic. This all means a sonic performance that reflects the superb design and implementation.

Got headphones? The Stereo 50 with separate 3.5mm and 6.3mm inputs is just for you. Each headphone input has its own dedicated gain and sensitivity to perfectly match high-sensitivity In-Ear-Monitors and low-sensitivity Over-the-Ear headphones respectively. The 6.3mm output pumps out a “turbo-charged” 7,000mW. So even the most demanding of headphones such as the HiFi Man HE-6 has met its match.

iFi’s iPhono has already become a modern classic and the Stereo 50’s phono stage is set to emulate this feat. It has adjustable ultra-wide gain MM/MC from 38-62dB and its tone control system harks back to classic equalisation technology. With 6 different EQ curves (via the precision tone control), every stereophonic record is catered for. From the default RIAA through to EMI and Decca, as the legion of iPhono users can attest, once dialed-in, each and every record has “a kind of vinyl magic”.

The Stereo 50 “full system” including the Retro LS 3.5 is a match made in audio heaven. The LS3.5 is iFi’s 21st century take on the legendary BBC LS3/5a. To create the LS3.5 speaker, iFi scoured the globe for the very latest technologies and ideal materials. The result is a deep, wide and open sonic signature with spine-tingling tonality.



Specifications
• Wireless Input: Bluetooth (aptX)
• Digital Inputs: USB (DSD512/768kHz/2xDXD), Coaxial (192kHz), Optical (192kHz)
• Analogue Inputs: Line 1, Line 2 (3.5mm share with Line 2), Phono(MM/MC Low/MC High/Line 3)
• Outputs: Loudspeaker Output, Headphone Outputs 3,5mm (imp < 3Ω) & 6.2mm (imp < 6Ω)
• Power output (Music): > 25W(majority Class A)
• Total Harmonic Distortion(THD): < 0.2% (@ 2.83V/1W)
• Output bandwidth: 10Hz ~ 60kHz
• Frequency Response: 10Hz ~ 80kHz
• Signal-to-Noise Ratio : Amplifier >101dB (@ max output), Phono MM >90dB(A), Phono MC >80dB(A)
• DAC Dynamic Range: > 113dB(A)
• Tone Control: Bass(100Hz) +/-8dB, Treble(10KHz) +/-8dB
• Analogue Signal Processing (ASP): XBass, 3D Holographic
• Phono Gain: 38, 50, 62dB
• MM: 220pF//47k
• MC: 200pF//330R
• RIAA Accuracy: <0.5dB
• Tubes: 2 x ECF82; 4 x EL84X
• PCM: 768/705.6/384/352.8/192/176.4/96/88.2/48/44.1kHz
• DSD 512/256/128/64: 24.6/22.6/12.4/11.2/6.2/5.6/3.1/2.8MHz
• DXD: 768/705.6/384/352.8kHz
• Filters: Minimum Phase (PCM 192/176.4/96/88.2/48/44.1kHz), Bit Perfect (DXD/PCM 768/705.6/384/352.8), Analogue (DSD)
• Power Supply: AC 100V-240V
• Power consumption: 75W, ~0.1W (Standard mode)
• Dimensions (W x H x D): 300 x 153 x 226mm
• Weight: 5.8kg


https://ifi-audio.com/products/retro-stereo-50/
Senest rettet af kvik 19. dec 2021, 20:44, rettet i alt 3 gange.
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Re: Rør, hvis du tør - Maverick Audio

IndlĂŚgaf kvik » 29. jan 2014, 11:05

Maverick Audio TubeMagic A1 Hybrid Integrated Amplifier ($200)

Maverick Audio TubeMagic A1.jpg
Maverick Audio TubeMagic A1.jpg (27.64 KiB) Vist 48217 gange

Imagine if you could have a power amplifier, a tube headphone amplifier and a tube pre-amplifier all fit within the same small form factor case and built with high-quality “old school” components. Now you can have all of that. This is the Maverick Audio A1 Hybrid Amplifier, a multifunction amplifier that can go anywhere, in any setup and drive your analog listening devices (speakers, headphones) with power and quality.

Audio inputs:
• Analog audio input x 1 (Analog)
• Line-in audio input x 1 (Analog)
• Analog connector: RCA, 1000k ohms

Audio outputs:
• All RCA connectors are gold-plated
• Volume control is provided for all outputs
• Power outputs: 20 watts per channel (into 8 ohms), 40 watts per channel (into 4 ohms)
• Frequency Response: 20Hz – 25KHz
• Input Impedance: 100K ohms
• Analog RCA outputs signal-to-noise ratio: >90dB
• Tube pre-out outputs signal-to-noise ration: >90dB
• Total harmonic distortion: less than 0.1% (Tube pre-out outputs and analog outputs)
• Headphone maximum output power: 1000mW x 2 (32 ohms), 500mW x 2 (300 ohms), 300mW x 2 (600 ohms)

Headphone outputs:
• Standard 1/4″ jack
• Minimum headphone impedance: 16 ohms
• Maximum headphone impedance: 600 ohms
• Headphone output power: 300mW ~ 1000mW

Power:
• R-core Linear 110/220 manual switch

Physical:
• Dimensions: 10″W x 2.1″H x 6.5″D (260mm x 55mm x 167mm)
• Finish: brushed aluminum in black color


http://www.mav-audio.com/base/product/tube_magic_a1
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Re: Rør, hvis du tør - Icon Audio

IndlĂŚgaf kvik » 29. jan 2014, 11:19

Icon Audio HP8 MkII (ÂŁ1000)

Icon Audio HP8 Mk II.jpg
Icon Audio HP8 Mk II.jpg (1.32 MiB) Vist 33938 gange

True High End headphone amplifier. Built as a small SET hi fi amplifier using Icon handmade multi tap output transformers. High definition with superb listening qualities to match the finest headphones.

Headphones have such an intimate relationship with the listener, a good headphone amplifier needs to have the purest possible sound to avoid long term listening fatigue for the user.

The usual way to provide a headphone output on an integrated amplifier is to drop the power through a couple of resistors, giving “low fi” disappointing results. Solid State headphone amps often use a couple of $2 microchips which can sound harsh and have limited power.

We use two Class A valves with high quality output transformers that provide ideal matching to almost any headphone type 30-600.

The power supply has generous mains transformer two custom output transformers. The HP8 MK II is a heavy 7kg, and very solidly made, giving you an idea of how much iron you get for your money!

Like our other models the HP8 MKII has no printed circuit board and is all hand wired with top quality components. We use silver PTFE audio cable, gold plated terminals and the famous “ALPS” volume pot for sonic purity.

The front valve is the excellent ECC83. this has exceptional detail and fluidity. It complements the super 6SN7 (the best hi fi valve ever?). This combination will give you a simply stunning insight into inner detail of your favourite recordings whether analogue or digital.

Like our other amplifiers, close attention has been paid to the finish of the HP8 MKII. It uses the same heavy build quality as our other amplifiers a combination of alloy plate and painted steel.

The HP8 MKII is very versatile. It may connected to your hi fi in several ways:
1, In a normal hi fi system you would connect to the “record out” of your amplifier. This will then be directly connected to the “source” that you have selected.
2, Now with built in loop enabling easy connection.
3, With “Pre and power” systems a connection may be made between the two units.
4, As a stand alone unit you can directly connect to any CD/iphone/phono pre-amp etc.


Specifications and Features
• Comprehensive manual supplied
• All hand wired point to point
• No printed circuit board to ‘colour’ sound
• Japanese Blue ALPS volume pot.
• Class A, all Triode circuit
• Output impedance matching from 6 to 600Ω
• 2 x 6SN7 for output 1x ECC83 input valve
• NOS, Treasure and Full Music types available
• Signal to noise level -90db
• Freq response better than 20hz-20kHz +0 –0.2db
• Total harmonic distortion typically less than 0.2% 1khz
• Also Suitable for ≥ 8 ohm high efficiency loudspeakers
• Japanese steel EI transformers with low oxygen copper
• High quality 2W metal film, & wire-wound resistors
• Solen audio capacitors, capacitor upgrade available
• Custom hand wound output transformers
• Ceramic valve holders for minimum leakage
• Silver PTFE audio cable
• Gold plated Input/outputs
• One line input
• Loop through facility
• 350mv input sensitivity.
• 220/240volts 36 watts.
• 16cm W, 27 D, 16 H, 7kg
• Carton 37Wx27Dx30H 7.0 kg
• C E, ROHS and WEEE compliant
(Specifications subject to change)

Optional
• Bluetooth option
• Signature model (valve & capacitor upgrade + bluetooth)

https://iconaudio.com/headphone-amplifier-hp8-mkii



Icon Audio HP 205D (ÂŁ2500)

Icon Audio HP205D.jpg
Icon Audio HP205D.jpg (128.19 KiB) Vist 33938 gange

We believe that Directly Heated Triodes bring you closer to the music!

Many audiophiles have discovered that a simple well designed valve amplifier can give greater purity and intimacy than more complex solid state designs. This is especially true of headphone amplifiers and the 1920s W.E. 205D is about as simple as a valve gets! Taking inspiration from our highly rated HP8 headphone amplifier and the remarkable WE 205D valve, we have designed a deceptively simple amplifier which has surpassed even our own expectations!

The 205D is a Directly Heated Triode designed by the Western Electric Co in the 1920s and is probably the oldest valve in current production! As a small power output valve it has all the right qualities for headphone use, being very linear in operation. High end headphones can be very revealing sounding clinical and overly bright with some amplifiers. Sonic presentation with the 205D and our output transformers has the highest definition and incredible dynamics but in nice way, more vivid and warmer sounding. Completely free of fatigue.

Headphones have the ability to convey incredible detail and insight into a recording so careful circuit design is called for. Like any valve amplifier the output transformers are crucial to the final quality and our own custom designed and wound transformers play an important part in this. Also an advanced design using Directly Heated Triodes such as this demands the highest quality power supplied by outboard power supply using a time honoured valve rectifier and choke circuit.

Although headphones have only a tiny power requirement of no more than one Watt, we have taken the same care and attention to detail that is required with any “high end” design, every component is chosen carefully to avoid negatively influencing the ultimate sound quality. As in our other designs the HP205D is hard wired throughout (without using printed circuit boards) not only for better sound quality by using full size components and easier upgrades but for easy future service.

The 205D is driven by an ECC88 a modern valve which ideally complements the 205D technically and sonically.

The HP205D may be used as a stand-alone unit or as part of a hi fi system. The optional Bluetooth receiver make the HP 205D very versatile in use.


Specifications and Features
• Built in Bluetooth option
• All hand wired point to point
• No printed circuit board to ‘colour’ sound
• Japanese Blue ALPS volume pot.
• Class A, all Triode circuit
• Output impedance matching from 16 to 600Ω
• 2 x 205D for output 2x ECC88 input valve
• Psvane and Full Music upgrade valves available
• Signal to noise level -90db
• Freq response better than 20hz-20kHz +0 –0.2db
• High quality oversize resistors
• SCR audio capacitors, upgrades available
• Custom hand wound output transformers
• Ceramic valve holders for minimum leakage
• Silver PTFE audio cable
• Gold plated Input/outputs
• Loop through facility
• 350mv input sensitivity.
• Comprehensive manual supplied
• 220/240volts 36 watts.
• 16cm W, 27 D, 16 H, 7kg
• Carton 37Wx27Dx30H 7.0 kg
• C E, ROHS and WEEE compliant
(Provisional specifications subject to change)

Optional
• Bluetooth option
• 205D upgrade option
• Capacitor upgrade option

https://iconaudio.com/hp205d-headphone-amplifier-hp205d



Icon Audio Stereo 20 PP (ÂŁ1000)

Icon Audio Stereo 20 PP.jpg
Icon Audio Stereo 20 PP.jpg (605.7 KiB) Vist 33938 gange

Small But Perfectly Formed! Headphone Socket. Classic Design.15+15 watts. Push-Pull Ultralinear (Triode conversion available). All Triode Driver. Simple Circuit. "Leak" front-end.

In a rapidly changing world it is nice to have some traditional values. In 1955 The British company H. J. Leak designed the Stereo 20 using the new Mullard EL84, and ECC83 valves. It was an instant worldwide success for quality performance and value. These vintage amplifiers can now fetch over ÂŁ1,500!

Our new Stereo 20pp is inspired by this design. Ideal for the smaller room, or loudspeakers that do not require a large amount of power. Our circuit uses less feedback and designed to be compatible with the higher output that CD players have as well as any almost any other source including DACs and Streaming.

This amplifier has a very transparent quality, being particularly suited to acoustic and orchestral music, but used with appropriate speakers is capable of performance way beyond your expectations!

The inclusion of a dedicated headphone winding on the output transformers guarantees the best possible performance. Giving a closer intimacy than is possible that with solid state headphone amplifiers.

The diminutive EL84 output tube is very efficient much loved power tube, enabling the use of a smaller power supply and output transformers giving economy of size and materials which is reflected in the final price. The EL84 has a very high pedigree having many variants in radio, TV and radar and apparently was even used in the firing mechanism of nuclear missiles!


Specifications & Features
• EL84 output valves
• ECC83/ECC82 double triodes valves
• Class A, all Triode front end
• Ultralinear output circuit
• Supplied in triode form upon request (FOC)
• Hand wired point to point components
• 15 Watts per channel Ultralinear
• Suitable for 4 to 8ohm loudspeakers
• Freq response 20-20Khz
• Attractive valve cover included in the price
• Solen hi fi quality audio capacitors
• Silver PTFE audio cable
• Gold plated Input & speaker terminals
• 3 line Inputs for CD, Tuner, MP3 etc
• 250 mv sensitivity for full output
• 220/240volts, 100w
• 27cmW, 30D, 16H cm 10kg
• Comprehensive manual supplied
(Specifications subject to change)

https://iconaudio.com/stereo-20pp-integ ... ereo-20-pp



Icon Audio Stereo 25 Mk II (EL34 ÂŁ1500, KT88 ÂŁ1600)

Icon Audio Stereo 25 MkII KT88.jpg
Icon Audio Stereo 25 MkII KT88.jpg (783.61 KiB) Vist 33938 gange

Ideal first valve amplifier with plenty of valve power to drive most loudspeakers!

In essence a simplified ST40 MKIII, yet no reduction in quality, this is our best value integrated amplifier. Features include the excellent 6SN7 and 6SL7 valves for improved sound, and a headphone socket with excellent performance.

Our simple bias circuit means that valve replacement of the same type requires no bias adjustment*. Yet retains the ability to use “tube roll” different valves, so the ST25 MK II is designed to use: 6L6, EL34, 6CA7, KT66, KT88, 6550.

If you are new to valves the Stereo 25 MK II is an excellent starting point. With ample power, its affordable price and excellent power make it an ideal “starter” amplifier to find out what valves can do for your system.

The inclusion of a dedicated headphone winding on the output transformers guarantees the best possible performance. Giving a closer intimacy than is possible that with solid state headphone amplifiers.


Specification & Features
(Typical conditions EL34 valves@ 240v 50Hz. 8 Ί)
• 6L6/EL34/6CA7/KT66/KT88/6550 output valves
• 6SN7/6SL7 double triode driver valves
• Class A, all Triode front end
• Ultralinear output circuit
• Triode version by request 19+19w (no extra charge)
• Hand wired point to point. No printed circuit board
• 30w RMS per channel Ultralinear (EL34)
• 4 and 8ohm loudspeaker output
• Tertiary Wound Transformers
• Frequency response 20-20khz +0 - 0.5db
• THD typically less 0.5% 1kHz
• Hand wound transformers
• Attractive valve cover included in the price
• Hi Fi quality Solen capacitors
• Silver PTFE audio cable
• Gold plated Input & speaker sockets
• 3 line Inputs for CD, Tuner, Phono etc
• 250 mv input for full output
• 220/240volts, 100w (180w max)
• 34cmW, 34D, 22H (overall) 17kg
• CE, ROHS & WEEE compliant
• Comprehensive manual supplied

*No bias adjustment if the valves are changed for the same type. However bias adjustment and test points are included to get the optimum performance from a wide range of output valves.

https://iconaudio.com/stereo-25-mkii-in ... eo-25-mkii



Icon Audio Stereo 40 MkIV (ÂŁ2600)

Icon Audio Stereo 40 MkIV.jpg
Icon Audio Stereo 40 MkIV.jpg (424.11 KiB) Vist 13743 gange

Exceptional performance at a modest price!

The Stereo 40 MKI was our first model in 2001 and has always been a special product to us. Since that time we have substantially improved it over the years.

In its latest guise, the MK IV has several upgrades making it exceptional value..

• Headphone Socket: Exceptional quality is provided by using separate HQ windings of the output transformer. Not attenuation is used to give a very open sound. Suitable for 8 to 500 Ohms. Giving greater flexibility of use.

• Improved Power Supply: In conjunction with our re-designed output transformers, the Ultralinear Power is now over 50 Watts. This gives greater instantaneous power available for heavy transients, and a more solid bass.

• More Triode Power: We know that majority of customers use the Triode Facility most of the time. The Triode power is now 30 Watts enabling use of all but the most inefficient speakers.

• Re designed driver circuit: Using a “cascode” configuration for the first stage enables us to use the venerable 6SN7 valve for all the driver circuit functions. This gives better definition whilst improving the frequency response at lower volumes. This also simplifies valve replacement as the amplifier only uses two valve types.


Specifications and features
• All hand wired point to point, no printed circuit board
• Class A, all Triode front end
• Output circuit Ultralinear or Triode switchable
• 4x KT88 matched for best performance
• 4x 6SN7/CV181 first stage valve and phase splitter
• Standby switch to save valve life and power
• 2x 50w per channel Ultralinear output continuous
• 2x 30 Watts in Triode mode continuous
• Remote control with high quality ALPS motorised pot
• Signal to noise level -90db
• Freq response better than 20hz-20kHz +0 – 1db
• Power bandwidth 30Hz-30kHz -3 dB
• Total harmonic distortion 0.2% at full output
• Suitable for 4, 8, and 16ohm loudspeakers
• Supplied with valve cover.
• Choke regulated power supply
• SCR audio caps, or Mundorf silver/gold in oil upgrade option
• Silver plated copper PTFE audio cable
• Custom hand wound Tertiary output transformers
• Audiophile Gold plated Input & speaker terminals
• Four line inputs: CD, Tuner, Aux plus Tape
• Tape monitor circuit with ‘Record Out’
• Input sensitivity 250mv.(high). 800mv (low).
• Comprehensive manual supplied
• Power requirement 230-240volts (117v adjustable)
• 76 Watts standby, 140 W Min, 240 W
• 39cmW, 41D, 23H, 23kg (allow for ventilation)
(Specifications subject to change) *(Root Mean Square = continuous output)

We can offer a range of upgrades including Shuguang “Treasure” valves and Russian types. As well as the superb Mundorf “silver/gold in oil” capacitors. Ask us for a quote.

https://iconaudio.com/stereo-40-mkiv-in ... eo-40-mkiv
Senest rettet af kvik 19. dec 2021, 17:42, rettet i alt 4 gange.
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Re: Rør, hvis du tør - Cayin Audio

IndlĂŚgaf kvik » 29. jan 2014, 11:21

Cayin HA-3 ($650)

Cayin Cayin HA-3.jpg
Cayin Cayin HA-3.jpg (242.35 KiB) Vist 48217 gange

The Cayin HA-3 is a DAC coupled to a hybrid headphone amplifier, asymmetrical tubes and MOSFETs in Class A. These tubes are associated with high quality components to deliver a great musicality. HA-3 is equipped with an XMOS asynchronous USB interface, a Burr-Brown PCM1792 converter, an Analog Devices 827JN opamp, and two 6N16B tubes. The amplifier can drive headphones 32-300 Ohm with ease.

Specifications
• Freqency Response: 10Hz-100kHz (AUX input); 10Hz-35kHz (USB input)
• Power Output: 2100mW@32Ω; 1600mW@64Ω; 500mW@300Ω
• Digital Input: USB Audio (USB 2.0, support upto 24bit/192kHz)
• THD: 0.01% (1kHz)
• S/N: 105dB (A-weighted)
• Input Impedance: 100kOhm (AUX Input)
• Input Sensitivity: 1.8V (AUX Input)
• Input Terminals: USB-B, RCA
• Headphone Output: 6.35mm x2
• Power Consumption: <35W
• Dimensions (WDH): 180x290x65mm
• Net Weight: 3kg
• Tubes: 6N16B x2

http://en.cayin.cn/products_info?itemid=90



Cayin HA-1A mkII ($900)

Cayin HA-1A mkII.jpg
Cayin HA-1A mkII.jpg (92.24 KiB) Vist 48217 gange

Cayin has revamped the highly respected and renowned tube headphone amplifier HA-1A. The extraordinary part of this new amplifier is not only the facelifted wooden appearance, the EL84 based circuit design offers the most natural, realistic and powerful sound of its class and will definitely blow your mind when it sings. HA-1A MK2 will be one of the milestones of Cayin 22 years of expertise and devotion on tube amplification, by using the best possible material, upholding high standards of craftsmanship and dedicating to perfection, it shall reflect the kind of promises that Cayin has been strived for ever since.

FEATURES
• Serious upgrade to the Stereophile recommended HA-1A
• USA NOS Tung-Sol 12DT5 vacuum tube for recitification
• Enhanced S/N ratio and frequency response
• New designed upgraded output transformers
• Three points foundation support design
• Stylish and elegant piano paint finish red wood side benches
• Can also be used as a 14db gain vacuum tube pre amplifier
• 2 x 12AU7 for pre-amplifier stage
• EL84 x 2 vacuum tubes for power output stage
• Silver plated high purity copper internal signal wiring
• Special handmade low magnetic leakage toroidal power transformer
• Special handmade wide frequency response Ei audio transformers
• All point to point wiring (hand soldering)
• Detachable power cord system (IEC)

SPECIFICATIONS
• Tubes: 12AU7 x2, EL84EH x2, 12DT5 x1
• Dimensions (WDH): 126.5x304x215mm
• Net Weight: 9.5kg
• Power Consumption: 65W
• Input Terminial: CD, AUX
• Output Terminal: PRE-OUT

As Headphone Amplifier
• Output Impedance: 8-32Ω, 33-64Ω, 65-150Ω, 151-300Ω, 600Ω
• Power Rating: 1400mW@32Ω; 850mW@64Ω; 1200mW@150Ω; 2000mW@300Ω; 2200mW@600Ω
• Input Sensitivity: 200mV-440mV
• Frequency Response: 20Hz-45kHz ±3dB
• THD: 1% (1KhZ)
• SNR: 100dB (A-weighted)

As Preamplifier
• Output Level: 2V (max 4V)
• Frequency Response: 10Hz-42kHz ±3dB
• Input Sensitvity: 420mV
• THD: 0.5%
• SNR: 100dB

http://en.cayin.cn/products_info?itemid=89

Note: Also sold as Cayin CS-1H



Cayin HA-6A ($2500)

Cayin HA-6A.jpg
Cayin HA-6A.jpg (1.74 MiB) Vist 34021 gange

HA-6A offers both triode and ultra-linear mode, which can be seleced without turning off the amplifier. The input tubes are 12AU7. The two rectifier tubes on the left are 22DE4. With HA-6A you can swap between EL34 and KT88 anytime you like.. In KT88 mode, you can use KT88 variants including KT100, KT90, 6550, 6550A, 6550EH vacuum tubes. In EL34 mode, you can also use EL37, 6CA7, 6L6GC, 5881, KT77 and KT66. Together with Triode and Ultra-linear dual mode selection, the HA-6A offers a lot of sound signature options in one compact chassis.

The amplifier will be pre-installed with a matched pair of Genalex Gold Lion KT88, and we'll include a matched pair of Electro-Harmonix EL34 EH in the the HA-6A package. In other word, you don't have to choose your prefer power tube, you own both options immediately and you can tube rolling as soon as you finish taking your open-box photo

The HA-6A incurred a lot of elements from HA-300, you can even consider the chassis as a one-box scale-down version of HA-300, with the separated power supply merged with the amplifier chassis and then scaled down from 445mm (159 mm + 286mm in HA-300) to the current 360mm The net weight of HA-6A is 19kg, so the shipping weight will be around 25kg.

The HA-6A has incurred the proven amplification design of our HA-300. The tube amplification part of the HA-6A is single-ended Class A, and then output from Power Tubes will feed into a pair of output transformer to provide genuine balanced driven output (both XLR4 and 4.4mm). The single-ended RCA input will feed into the Tube Amplification section directly, but the Balanced XLR input go through a pair of input transformer and converted to single-ended.

So to clear the doubt. Yes, the EL34 and KT88 are operated in Class A Single-ended, but the XLR4 and 4.4mm are truly balanced driver, they are NOT hard wired from single-ended phone out and they sound very different because of our Transformer coupled design. Will single-ended tube amplification sounds good with balanced headphones? Definitely if you implemented this correctly and Cayin HA-300 sustain this claim. The design and quality of output transformer plays a very vital part in this approach and Cayin has a very unique advantages in this aspect: we are one of the very few, if not the only, headphone amplifier manufacturer that incorporate transformer design and production in-house. We can design the transformers to meet the need of a specific amplifier, and wind the transformer in house exactly as design even when we are making high-end amplifier in small production batch.


HA-6A specs.jpg
HA-6A specs.jpg (316.41 KiB) Vist 34021 gange

https://en.cayin.cn/products_info?itemid=127
https://www.head-fi.org/threads/cayin-h ... 99.918779/



Cayin HA-300 ($4000)

Cayin HA-300.jpg
Cayin HA-300.jpg (855.26 KiB) Vist 45709 gange

The HA-300 adopts the Class A single-end amplification with a balanced output design. The output of the 300B power tube will feed to a pair of output transformers for single-end or balanced output. Being one of the biggest tube amplifier manufacturers in the world, Cayin designs and builds our transformers, making sure even the finest detail will be attended to. In the case of HA-300, the output transformer was specially winded to provide three set of impedance matched outputs at 8-64Ί, 65-250Ί, and 251-600Ί respectively, making it extremely versatile to match with a wide range of headphones in the market.

We also built an outboard power supply for HA-300. On top of the in-house design, custom-build toroidal power transformer, we developed a special circuit to supply steady power independently to different gain stages. The voltage amplifier circuit will adopt an independent regulator design, and we shall deploy 4 pieces of NOS RCA 22DE4 as rectifier tubes. This power supply design will deliver the cleanest power possible with minimal interference to the line signal amplification in the main Amplifier chassis.

On top of a 6.35mm singled-ended and 4-pin XLR balanced headphone output, the HA-300 has a set of speaker outputs so it can be used as a speaker amplifier delivering up to 8wpc Class A output


Features
• Best possible integration of balanced and singled-end signal processing: Input Transformer(for Bal input)-> Push-pull Single-end Amplification-> Output Transformer (for Bal output)
• Two-boxes design with multi-stage tube regulated power supply
• Carefully selected premium tubes
Power Amplification: Full Music gold pins ceramic base 300B x2
Voltage Amplification: Shuguang WE6SN7 replica of Western Electric x2
Tube Rectification: NOS RCA 22DE4 rectifier tubes x4
• In-house design and custom-build power, input and output transformers
• Provide choice of headphone outputs for high, middle and low impedance; make sure all headphones will perform satisfactory.
• Point-to-point Wielding to ensure shortest signal path and enhance the transparency and refinement of audio performance
• High quality shield silver-plated internal cable to minimize interference during transmission
• High-Precision 24 steps potentiometer to provide low noise, high-precision volume control
• US Aviation standard sockets and connectors for outboard power supply connection.
• Beautifully designed and crafted VU meters to monitor the signal level
• LIghtweight aluminium alloy panels, hand-painted finishing for uniform and long lasting high-gloss surface

HA-300 specifications.png
HA-300 specifications.png (304.73 KiB) Vist 21603 gange

http://en.cayin.cn/products_info?itemid=112
https://www.head-fi.org/threads/cayin-u ... 18.872093/
Senest rettet af kvik 11. dec 2021, 17:15, rettet i alt 3 gange.
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Re: Rør, hvis du tør - Xindak

IndlĂŚgaf kvik » 29. jan 2014, 11:23

Xindak MT-2 Headphone Amplifer / USB DAC (€295)

Xindak MT-2.jpg
Xindak MT-2.jpg (104.13 KiB) Vist 48217 gange

MT-2 is an integrated amplifier adopts tube amplifying and also can use as headphone amplifier. The units appearance is very exquisite and small, which width is only 26cm. The circuit adopts 6P1 vacuum tube as its amplifying tube which form pre-amplifying and drive with 6J1 tube. Adopts Xindak E type special made broadband output transformer, about power supply, it’s adopts 85w high reliability E type power transformer. Besides providing 6.35mm headphone output Jack,it also have USB interface build-in. Trough USB connect cable connect to computer which installed windows system , the device can use as external USB audio DAC. Its voice is clear and transparent, exquisite, mellow, warm and melting. This product have two different version, the one MT-2(II) equipped with the aluminum alloy brushing panel.

• Rated Output Power: 1.5W/4Ω
• Input Sensitivity: 400mV for maximum rated output power
• Frequency Response: 10Hz-20kHz
• Input: RCA*1, USB *1
• S/N Ratio: >83dB
• THD: 1% (1kHz/1V)
• Number of Channels: 2
• Power Consumption: 56W
• Tubes: 6P1*2, 6J1*2
• Net Weight: 5.5Kg
• Dimensions (W*H*D): 260mm*150mm*186mm

http://www.xindak.com/en-us/product_det ... ductID=465
https://www.tubophile.com/amplis-casques/64-mt2.html


OBS! Also sold as Audreal MT-2 II (€595)
Senest rettet af kvik 8. jan 2022, 23:12, rettet i alt 3 gange.
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Re: Rør, hvis du tør - Audio Space

IndlĂŚgaf kvik » 29. jan 2014, 11:36

Audio Space Mini-2 SE (AUD2200)

Audio Space Mini-2 SE.jpg
Audio Space Mini-2 SE.jpg (102.73 KiB) Vist 48217 gange

No, the Audio space Mini-2SE is not a single-ended amplifier, Audio Space does make single-ended amplifiers and better push-pull amplifiers but of course they also cost considerably more money. First, let’s see what you get. Opening the box you get a nicely chrome finished chassis amplifier with point to point internal wiring. Excellent build construction and a nice set of switches and knobs that feel solid. No cheap plastic buttons that adorn almost everything in this price range that make you wonder if you should have just shopped for your hi-fi at Walmart instead. The amplifier offers three switches for maximum and minimum feedback, triode and ultralinear mode, and a direct source switch to allow the integrated to be operated as a power amp. There are three line inputs, no phono stage, and a very good headphone output. There is no remote control. The amplifier certainly provides a high pride of ownership factor in terms of looks and build for this money.

The Mini-2SE is quite a neutral amplifier – solid bass and extended treble. The sound is never thick, or overly veiled or mellifluous. I tried all the various options running the amplifier in ultralinear and triode mode as well as max and minimum feedback. I ultimately found that the amplifier sounded best in triode mode with minimum feedback. For tough-to-drive loudspeakers with rock at higher levels, it is nice to have the ultralinear mode and max feedback mode which effectively doubles the amp’s power. This is a nice option for parties when critical listening isn’t required.

Few amplifiers bother with a headphone amp section and when they do it seems to be a cheap op-amp add on just to advertise that it has one. The Audio Space is a serious tube amp. I own a dedicated Antique Sound Lab MG Head DT as well as a Total Bithead headphone amp and the Audio Space mini-2SE is a significant upgrade to both units. With my HD 600, the Audio Space generated significantly better bass response in terms of depth and drive, and sounded more open and spacious than my other headphone amplifiers. The amplifier was free of noise in either stereo or headphone mode. The amplifier has a hint of softness around the leading edges of notes, which I found preferable to the ultralinear mode where it may perhaps be viewed by some as superior or more accurate but comes across as a little more “glassy.” What is nice about the switches is that they give you the ability to make the subtle adjustments to your preferences and perhaps to tailor the sound to your chosen headphones.


Outstanding Features:
• Rugged stainless steel chassis
• High quality EI transformers and components
• Switching between ultra-linear and triode
• Switching between high and low negative feedback
• Switching between direct and line input
• Headphone jack
• Innovative tube circuitry with choke coil
• Point to point soldering

Specifications
• Input: Single-ended RCA x 3
• Output Impedance: 4, 8 ohm
• Output Power:
24W x 2(Ultralinear - Class AB Push-Pull),
12W x 2 (Triode - Class AB Push-Pull)
• Frequency Response: 15Hz-30KHz +/-1dB
• T.H.D.: < 1%
• Input Sensitivity: 230mV - 300mV
• S/N Ratio: > 87dB
• Channel Balance: < 1dB
• Vacuum Tubes:
1x 6N9P (6SL7 or ECC35)
2x 6N8P (&SN7 or ECC32)
4x EL34 (6CA7)
• Dimension (DxWxH): 345 x 240 x 175 mm
• Weight: 13.2 kg ( N.W.) / 16.5 kg (G.W.)

http://audiospace.com.au/p14/Mini-2SE/p ... 0538c25c55
http://dagogo.com/audio-space-mini-2se- ... ier-review



All Audio Space integrated amplifiers with headphone-out

Audio Space overview.png
Audio Space overview.png (74.91 KiB) Vist 21634 gange

Audio Space photos.jpg
Audio Space photos.jpg (511.61 KiB) Vist 21634 gange

http://audiospace.com.au/Integrated-Amp ... index.html
http://www.audio-space.com/product-cate ... amplifier/
http://www.charismaaudio.com/?page_id=86
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Re: Rør, hvis du tør - Aric Audio

IndlĂŚgaf kvik » 29. jan 2014, 14:03

Aric Audio Transcend SE ($ ?)

Aric Audo Transcend SE.jpg
Aric Audo Transcend SE.jpg (435.77 KiB) Vist 14176 gange

Just completed a Transcend KT-based SE amplifier with a pretty robust headphone section that will be used to drive some power/current hungry cans. With up to 16 watts per channel available at the speaker jacks, and 5 watts per channel for the headphones, this amplifier will be up to the task!



Aric Audio Transcend 88/120 SE ($ ?)

Aric Audio Transcend 88_120 SE.jpg
Aric Audio Transcend 88_120 SE.jpg (651.18 KiB) Vist 14176 gange

Just finished up another Transcend KT88/120 SE amplifier for a client, complete with headphone jack and 3 sets of stereo inputs, essentially making it an integrated amplifier. And did I mention that she sounds absolutely stellar? Well she does!



http://www.aricaudio.com/tube_gear.php
https://www.facebook.com/AricAudioSystems/

http://www.enjoythemusic.com/magazine/e ... Review.htm
http://v2.stereotimes.com/post/aric-aud ... rry-london
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Re: Rør, hvis du tør - Estro Armonico

IndlĂŚgaf kvik » 29. jan 2014, 14:06

Estro Armonico OTL Headphone Amplifier (€2100)

Estro Armonico_1.jpg
Estro Armonico_1.jpg (95.78 KiB) Vist 33870 gange
Estro Armonico_2.jpg
Estro Armonico_2.jpg (182.97 KiB) Vist 33870 gange

High Performance Edition

Initially a custom amp made only for a little group of people, and though not listed on the website, it is available on-demand by contacting the manufacturer.

For product details see the HeadFi review (link below). The amp can be customized to some degree - no. of inputs, Line-Out/Pre-Out, Caps, ao.

Separate power supply (5U4), weighing a hefty 11 kg

Tube complement: 1x 5U4 / 2x 6H23 / 2x 5998



https://www.facebook.com/pg/Estro-Armon ... 23/photos/
https://www.head-fi.org/threads/review- ... er.785927/
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Re: Rør, hvis du tør - World Designs

IndlĂŚgaf kvik » 30. jan 2014, 23:13

World Designs HD3S (Kit Standard/XL ÂŁ560/645, Built +ÂŁ200)

World Designs HD3S.jpg
World Designs HD3S.jpg (129.35 KiB) Vist 48217 gange

A beautifully simple, yet sophisticated, stereo headphone amplifier design using ECL83 valves. The unit works directly from any source and includes headphone impedance matching for optimum results from your favourite headphones. With the current interest in high quality headphones driven by the portable audio revolution, this is the right product to get the best from them. Until you try a good quality headphone amplifier in place of the headphone sockets on most portables and amplifiers (where they are, in most cases, an afterthought to increase the feature count) you do not realise what you are missing.

The circuit utilises twin high specification E/I transformers output that will drive any headphone load from 16 ohms to over 300 ohms depending on how the secondaries are configured, switched by DIP switches for easy re-configuration.. The HD3S is a single-ended design, with the power pentode wired up in triode configuration for that added purity, and is as quiet as a mouse.

External dimensions: W220 x D314 x H82mm. Weight 3.6kg


http://www.world-designs.co.uk/headphone%20amps.htm
http://www.world-designs.co.uk/index_ht ... _Sep14.pdf
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Re: Rør, hvis du tør - ALLNIC Audio

IndlĂŚgaf kvik » 30. jan 2014, 23:54

ALLNIC HPA-3000 GT ($4300)

ALLNIC HPA-3000 GT.png
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The HPA-3000 GT is Allnic Audio’s stereo headphone amplifier, with an output transformer coupled. The HPA-3000 GT has a voltage gain of +28dB, and a maximum output of 3 watts. It works best with headphones having an impedance of from 30 to 600 ohms.

Features:
• High-quality, NOS tubes
• Pure Class A operation
• As are all Allnic Audio products, the HPA-3000 GT is fully RoHS (EU Reduction of Hazardous Substances regulation) compliant in construction and materials
• Headphone output: The HPA-3000 GT is equipped with two(2) headphone outputs ‘jack’ and two(2) XLR for(4) pin outputs. Each for low and high impedance
• Pre output: The HPA-3000 GT is equipped with one(1) pair of RCA pre outputs, whose impedance is around 10 ohms, this extremely low value means very powerful driving capability to next amplifier with the widest frequency ranges
• Volume control: The HPA-3000 GT’s volume control is the large knob in the center of front panel. It rotates clockwise (gain increased) and counterclockwise (gain reduced)

Specifications:
• Inputs: One (1) pair unbalanced (RCA), One (1) pair balanced (XLR)
• Headphone Output: Two (2) one-quarter inch (1/4”), Two (2) XLR
• Pre-out: Available
• Frequency Response: 20Hz ~ 20KHz (±0.3db)
• Voltage Gain: +28dB
• Optimum Headphone Impedance: Low under 50 ohms, High under 600 ohms
• Output Wattage: Three (3) watts
• Maximum Input Voltage: Ten (10) volts RMS
• THD(Total Harmonic Distortion): Less than 0.03% (1KHz, Out put 1V)
• S/ N Ratio: -63db (CCIR, 1KHz)
• Power Consumption: 48 Watts
• Tubes: 6EM7 X 2
• Fuse: AC 2A, 250V
• Dimensions: 240mm x 330mm x 175mm (W x D x H)
• Weight: Unpacked: 10 kg

https://allnicaudio.com/product/hpa-3000/
https://www.soundsevilla.com/amplificad ... 00-gt.html



ALLNIC HPA-5000 XL ($6615)

ALLNIC HPA-5000 XL.png
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The HPA-5000 is Allnic Audio’s stereo Headphone Amplifier. The HPA-5000 is an Output Transformer-less (OTL) and Output Capacitor-less (OTC) amplifier design, utilizing a true balanced Positive-Negative cancellation circuit. The HPA-5000 has a voltage gain of +28dB, and a maximum output of 5 watts. It works best with headphones having an impedance of from 30 to 50 ohms.

A design made for the true headphone audiophile, a tubed output transformer-less, output capicitator-less design from the genius of KS Park. Kang Su has a passion for excellent headphone designs, he once heard a similar design in Japan at an audio show. He thought it showed good promise but felt the tubes and circuit employed could be designed from the ground up to make for a more beautiful sound. After many years of study and a special purchase of Mullard E180CC vintage tubes, the dream was realised. This product is so special, it was categorized under the 5000 series.

What you need to know about ALLNIC AUDIO: ALLNIC is short for “All Nickel” which comes from the fact that all our output transformers are made with 78 percent nickel core perm alloy. This not only makes ALLNIC a one of a kind, listeners hear more of the lows and highs with the greatest dynamic range available. With ALLNIC you can expect greater life expectancy from vacuum tubes as we use only New Old Stock Vacuum Tubes. Since they last longer you save money. We also employ our patented gel cap dampening tube sockets which isolate micro phonics eliminating unwanted external vibrations giving listeners the purest sound possible. The ALLNIC built 41 silver stepped motorized remote controlled volume attenuator provides precise volume tracking and ease of operation making it convenient and allowing more listening time. The convenience of being able to match any power tubes with our manual power tube bias feature will save a lot of money and time in the long run. Easy access to our surface mounted fuses for each power tube save you time, money and frustration. You can be confident in our performance with ALLNIC’s two year transferable warranty on electronics and one year transferrable warranty on tubes. Our warranty protects your investment at the same time increasing the resale value


Features:
• High-quality, NOS tubes
• True OTL/OCL design
• Pure Class A operation
• New vacuum tube damping technology – Allnic Audio’s patented "Absorb GEL tube damper" technology prevents harmful vibrations from reaching the driver tubes and, therefore, prevents micro-phonic noise propagation in the tubes. The Allnic Audio Absorb Gel damper technology effectively solves a problem that plagues most tube amplification systems. Provided other tube components do not introduce micro-phonic noise into your system, with the Absorb Gel damping system, you will enjoy a degree of transparent sound that will surprise and please you.
• As are all Allnic Audio products, the HPA-5000 is fully RoHS (EU Reduction of Hazardous Substances regulation) compliant in construction and materials

Specifications:
• Power Consumption: Tubes:
• Inputs: Two (2) pairs unbalanced (RCA)
• Headphone Output: One (1) one-quarter inch (1/4”)
• Frequency Response: 20Hz ~ 20KHz (±0.3db)
• Voltage Gain: +28dB
• Optimum Headphone Impedance: Thirty (30) to fifty (50) ohms
• Output Voltage: Five (5) watts
• Maximum Input Voltage: Five (5) volts RMS
• THD (Total Harmonic Distortion): Less than 0.03% (1KHz, Output 1V)
• S/N Ratio: -68db (CCIR, 1KHz)
• Power Consumptioin: 70 Watts
• Tubes:
6AN8 – New Old Stock – first gain stage – no equivalents
E180CC - New Old Stock - second gain stage - approximately electrically (not sonically) equivalent: CV8431, 7062, 5965, 12AV7, 6414, 6829
7233 – New Old Stock – no equivalents
• Fuse: AC 2A, 250V
• Dimensions: 230mm (~9.1 inches) x 380mm (~12.3 inches) x 165mm (~6.5 inches) (W x D x H)
• Weight: Unpacked: 9 Kg (~19.9 lbs), Packaged: 11 Kg (~24.26 lbs)

https://allnicaudio.com/product/hpa-5000xl/
https://www.lotushifi.co.uk/portfolio-items/hpa5000-3/
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Re: Rør, hvis du tør - Vacuum Tube Audio

IndlĂŚgaf kvik » 1. feb 2014, 13:44

Vacuum Tube Audio HA12 ($1000)

Vacuum Tube Audio HA12.jpg
Vacuum Tube Audio HA12.jpg (73.7 KiB) Vist 40419 gange

The new HA12 headphone amplifier is the result of a custom headphone amp built for a customer, and this version is now offered for anyone interested. This circuit design has several refinements for hi-end performance. This includes include a tube rectified and choke filtered high voltage power supply, with regulation for the signal amplifier. The filament supply has 18800 uF of capacitance for very low noise and ripple. The amp uses two EL84 output tubes, one 12AX7 preamp tube, and one 6CA4 rectifier tube. The output signal is transformer coupled to a pair of low-Z (32-100 ohm) and hi-Z (200-600 ohm) headphone outputs. There are two inputs, and dual mono gain/balance attenuators, followed by your choice of an ALPs RK27 volume control or a 24 step precision volume attenuator. The high voltage to the 12AX7 signal amplifier is regulated for very low noise and separation from the power amp output. The signal thru the EL84 output tube goes thru a high quality polypropylene film capacitor to the impedance matching output transformer. Frequency response is measured to be flat from 10Hz to 40KHz. Output power is meaured to be 500mw into 32 ohms and 60mw into 300 ohms, equivilent to a 2 watt amplifier into 8 ohms. Purchase options: Basic PCB board kit with parts (no chassis, no tubes, no transformers) is $249; Complete kit of all parts to build is $790; Assembled, tested, ready to use HA12 headphone amp is $999.

http://tubes4hifi.com/HA12.htm



Vacuum Tube Audio HA-14 ($?)

Vacuum Tube Audio HA14.jpg
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This HA14 headphone amplifier was a custom design and build for a customer. Based on the schematic of an existing $800 product, we decided to do several upgrades to the basic design of the original for better sound and higher power output, using octal tubes rather than common noval tubes. These upgrades include choke filtered high voltage power supplies, with regulation for the signal amplifier. The result is more similar to products in the $1500-2000 range, with a completely dual mono design, using a pair of dual primary transformers as the only common element. Each channel has a 6X5GT tube rectifier with a CLC filter using a choke. There are two inputs, and dual mono gain/balance attenuators, followed by a very high quality TKD volume control. The high voltage to the 6SL7 signal amplifier is regulated for very low noise. The signal thru the 6L6GC output tube goes thru a high quality SoniCap to the impedance matching output transformer, with outputs for low-Z (32-100 ohm) and hi-Z (200-600 ohm) headphone outputs. Frequency response is measured to be flat from 10Hz to 40KHz. Output power is meaured to be 1000mw into 100 ohms, about 6 times as much as the original base design.

http://www.tubes4hifi.com/HA14.htm

The same circuit design but using more common and less expensive 9 pin tubes (12AX7, EL84, 6CA4) is our new HA12 headphone amp. All on one compact circuit board (7.2' x 5.4") and using a single power transformer. Available as basic kit, complete kit, or plug-in ready amp.



Custom Amps built to your specs!! Email for more info and a quote . . .
Another VTA custom headphone amp (HA-9)
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Re: Rør, hvis du tør - Laconic Lab

IndlĂŚgaf kvik » 1. feb 2014, 16:23

Laconic Lunch Box Pro ($165)

Laconic Lunch Box Pro.jpg
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Laconic Lunch Box Pro HA-06 is designed for high quality amplification of the audio signal and pairing the line out signal source with headphones. The amplifier has an extended dynamic range compared to the base model HA-06T. Increased power output, increased supply capacity of the power supply. Improved components (capacitors). The design uses matched tubes. As the source, you can use sound cards for computers, CD/DVD players, and other devices with standard linear output.

Specifications:
• Frequency range: 10-100000 Hz
• S/N Ratio: -80 DB
• Gain: 16 DB
• Dynamic range: 100 dB (250 Ohm load)
• THD: < 0.15%
• Input voltage: 0.25-2.0 V
• Input impedance :10 kΩ (20 kΩ)
• Output impedance: 30 Ohm
• Headphone impedance: Low 32-150 Ohm, Hi 150-600 Ohm
• Output connector: Jack 6.3 mm (x1)
• Input connectors: RCA
• Power supply: Built-in
• Output voltage: 2-5 V
• Power consumption: 20 W
• Tubes: 6N3P, 2x 6N24P
• Dimensions: 160 x 65 x 130 mm
• Weight: 1300 g

http://laconiclab.ru/lunch_box_pro.html



Laconic Night Blues Mini ($285)

Laconic Night Blues Mini.jpg
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2012 model year. Tube amplifier , developed based on the legendary Night Blues NB-3A V2. Reduction in size and weight copy " older brother " Night Blues NB-3A V2. Night Blues Mini is designed to work with any low-impedance load , which is the most difficult for tube amplifiers . The novelty lamps are used , originally developed for audio applications - this is the input and the output light 6ZH1P 6N24P . The amplifier used for headphones specially designed low-noise power supply circuit . Night Blues Mini features high output power and can also work well with high- headphones. For this there are two ways , for low resistance and high impedance headphones.

• Outputs: 2x 6.3 mm
• Frequency range:10 - 30000 Hz
• Inputs: 1x RCA
• Distortion: 1%
• Dimensions: 190x170x100 mm
• Weight: 2 kg

http://laconiclab.ru/laconic_night_blues_mini.html



Laconic Bachelor ($270)

Laconic Bachelor.jpg
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The Laconic Bachelor Headphone Amplifier is designed to provide high quality audio signal amplification and line-out interface of the signal source with various types of headphones. The amplifier has two outputs for pairing with low impedance (output L ) and high impedance (output H ) headphones. As a signal source, it is allowed to use sound card computers, CD / DVD players, as well as devices with a standard line output.


Features

• Toroidal power transformer. Proprietary output transformers (winding) 

• Separate windings for low impedance and high impedance headphone outputs. 

• The shortest path for a sound signal.

Specifications
• Tubes: 6ZH1P (6Ж1П = 6AK5 = EF95 = 6F32 = 6J1)
• Frequency range: 10 - 40,000 (+ - 1 dB)
• Harmonic distortion: < 0.2%
• Input voltage: 0.25 to 2.0 V
• Load resistance: 100 - 600 Ohm (output H) / 32 - 100 Ohm (output L)
• Chassis: Steel
• 
Colour: Black
• Dimensions:130x200x110 mm
• Weight 2.4 kg 

• Warranty: 1 year

http://laconiclab.ru/bachelor.html



Laconic ZD Mini ($315)

Laconic ZD Mini.jpg
Laconic ZD Mini.jpg (123.06 KiB) Vist 47734 gange

The amplifier is for high-quality audio signal amplification and coupling line-out signal source with headphones with resistance from 32 up to 600 ohms. The amplifier has an extended dynamic range when working with load 32-600 ohms. As the source, you can use sound cards for computers, CD/DVD players, as well as devices with standard linear output.Diagram courtesy of Edde Curent and used with their consent.

Specifications
• Driver tube: 6N9S (equivalent to 6SL7 , 6Sl7G, 6SL7GT, 1579)
• Power tube: 6N13S (equivalent to 6N5S, 6AS7, 6080.7802)
• Frequency range: 10Hz-100kHz 1dB (headphone 150-600 ohm)
• Gain: 18 dB (8 times)
• SNR: -95dB
• Headphone impedance: 32-600 Ohm
• Dynamic range: > 80dB (250 Ohm load)
• THD: < 0.5%
• Nominal input voltage 0.25-0.2 V
• Dimensions in mm (WxHxD) 125 x 180 x 290 (320 with volume controls and RCA connectors

http://laconiclab.ru/laconic-zd-mini.html



Laconic Night Blues NB-3A ($405)

Laconic Night Blues NB-3A.jpg
Laconic Night Blues NB-3A.jpg (239.62 KiB) Vist 48216 gange

2012 model year. Universal tube amplifier designed for low impedance and high-resistance load. Has a transformer output , which makes it possible to get the highest quality sound. The novelty lamps are used , originally developed for audio applications - this is the input and the output light 6N8S 6P6S . The amplifier used for headphones specially designed low-noise power supply circuit . NB-3A features high output power and can be operated with high- headphones. For this there are two ways , for low resistance and high impedance headphones. Night Blues, not being a hybrid, combining the advantages of the transistor and tube amp , being all-tube , nevertheless amplifier can work effectively with low-impedance load.

• Frequency range: 12-35000 ( + - 1 dB)
• Noise/background: < 87 dB
• Gain: 12 dB
• Dynamic range (with a load of 24-600 Ohm): > 95 dB
• THD: < 0.5%
• Input voltage: 0.3-3,0 V
• Load resistance 24-600 Ohm
• Outputs: 2x headphone jack 6.3mm
• Inputs: 1x line-in RCA
• Tubes: 2x 6N8S, 2x 6P6S
• Material: Steel
• Color: Black
• Size WHD: 195x135x250 mm
• Product/Shipping weight: 4.8/6.0 kg
• Warranty: 1 year

http://laconiclab.ru/laconic_night_blues.html


--


NOTE:

On the forum SuperBestAudioFriends a russian member, Zampotech, offers two models resembling Night Blues Mini and Bachelor. These are called Shortest Way 51 and Bachelor, they are made in small batches, with a lead time of approx. 3 months, and are priced at $375 and $270. Product and order details can be found in the links below.

On ebay the same member also offers Lunch Box II kits for $200.

The relationship between Zampotech and Laconic Lab is not clear. The actual product differences are also not clear.

The Massdrop X Eddie Current ZDT Jr. was also a Night Blues Mini rework (done by Laconic Lab)

Shortest Way 51: https://www.superbestaudiofriends.org/i ... -amp.8042/
Bachelor: https://www.superbestaudiofriends.org/i ... elor.8393/
Lunch Box II kit: https://www.ebay.com/sch/retrokit/m.htm ... 7675.l2562

Shortest Way 51.jpg
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Bachelor.jpg
Bachelor.jpg (359.46 KiB) Vist 20761 gange
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Re: Rør, hvis du tør - ZMF

IndlĂŚgaf kvik » 2. feb 2014, 22:23

ZMF Pendant SE ($2500)

ZMF Pendant.jpg
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/ˈpendənt/ - An artistic, musical composition intended to match and compliment all things ZMF and beyond.

In 2016 we introduced our line of high impedance 300 ohm dynamic headphones. Now, with the Atticus, auteur and Eikon fulfilling our dynamic line-up, owners have found the importance of having the right amp paramount to getting the best, and most appropriate subjective sound from their ZMF's. With the Pendant, we have collaborated with ampsandsound, a manufacturer of high end boutique headphone and speaker amps, to create the perfect tube amp to drive ZMF dynamic, planar, or any other headphone in your collection.

At ZMF we've always valued the holographic, sweet and nuanced sound of a great tube amp. There is simply nothing like taking in our favorite tracks with a perfectly constructed audio set-up, and doing so with the glow and sound of the ZMF Pendant is an experience like no other.


• Single Ended Ultra Linear tube amp
• 8 ohm (low-z) and 100 ohm (high-z) outputs
• Single RCA input
• Pre-amp outs via RCA
• EL84/6BQ5 driver, 12au/t/x7 input, 6CA4/EZ81 rectifier tubes
• Transformer based design
• 3 Watts @ 8 ohms and 2.5 watts at 100 ohms
• Stepped Volume Pot (24 steps)
• Jupiter Coupling Caps
• Custom choke for dead quiet sound reproduction
• "Choice" wood chassis (curated by ZMF)
• Optional vintage tube set (EL84, 6CA4, 12au7, and 12ax7)

https://shop.zmfheadphones.com/collecti ... mf-pendant
https://www.superbestaudiofriends.org/i ... rder.6607/
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Re: Rør, hvis du tør - Monoprice

IndlĂŚgaf kvik » 2. feb 2014, 22:27

Monolith Liquid Platinum ($800)

Monolith Liquid Platinum.jpg
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Monolith Liquid Platinum Headphone Amplifier by Alex Cavalli

The Cavalli/Monolith Liquid Platinum is a balanced version of the very highly regarded Cavalli Audio Liquid Crimson amplifier. The Platinum is fully balanced/differential amplification with 3.6W ( per channel balanced) into 50R. As an embedded tube hybrid (pioneered by Cavalli) the Platinum gives you the beautiful sound of tubes together with the grunt of solid state to drive the headphones. With multiple inputs and outputs for balanced and single ended operation, switchable gain, and easy front panel input selection, the Liquid Platinum will bring your music listening to new heights.


Specifications
• Frequency Response: 10Hz-50kHz ±0.05dB
• Included Tubes: 2x Electro Harmonix 6922
• Output Power (BAL/SE): 6.62/1.78W@33Ω; 4.21/1.13W@56Ω; 1.74/0.45W@150Ω; 0.91/0.23W@300Ω
• THD+N @1kHz w/47R Load Balanced Input: 1 Vrms: 0.0020% THD+N @ 1kHz; 5 Vrms: 0.0020% THD+N @ 1kHz
• IMD CCIF w/47R Load Balanced Input: 1 Vrms: 0.0006%; 5 Vrms: 0.0015%
• IMD SMPTE w/47R Load Balanced Input: 1 Vrms: 0.0006%
• Gain: 14dB (5x)
• Noise: -98dB (Balanced); -89dB (Single Ended)
• Crosstalk w/47R Load Balanced Input: -88dB
• Channel Balance: 0.3dB
• Output Impedance: < 0.14 Ohms Balanced; < 0.07 Ohms Unbalanced
• Headphone Outputs: 4 Pin XLR (Balanced), 1/4" TRS (Single Ended)
• Audio Output: Unbalanced RCA
• Audio Inputs: 3 Pin XLR Balanced, Unbalanced RCA Single Ended (converted to balanced internally)
• Dimensions: 8.8" x 8.5" x 2.0" (222 x 216 x 51 mm)
• Weight: 3.2 lbs. (1.5 kg)

https://www.monoprice.com/product?c_id= ... k2-2917105
https://www.head-fi.org/threads/monopri ... li.876406/
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Re: Rør, hvis du tør

IndlĂŚgaf Ole » 3. feb 2014, 21:17

Super arbejde, der er rigtig mange flotte forstĂŚrkere - men nogle af dem ved de ogsĂĽ godt hvad de vil have for. Men man bliver jo nĂŚsten fristet :-)
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Re: Rør, hvis du tør - TPaudio

IndlĂŚgaf kvik » 5. feb 2014, 20:51

TPaudio CF-OTL (€190)

TPaudio CF-OTL.jpg
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TPaudio CF-TOR.jpg
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For headphones between 30 and 600 ohm. Usable alone, or inserted between CD-player and amplifier, or beween pre-amp and power amplifier. Does not negatively influence the signal path. Gold plated RCA input and output connectors. 6.3 mm headphone jack. Cabinet in brushed stainless steel, side panels in solid cherry .

• High Level Inputs: CD
• Sensitivity input: 250 mV
• Input impedance: 100 Kohm
• Output impedance: For 30 to 600 ohm headphones
• Output power of 0.7 watts per channel
• Frequency Response: 35Hz - 50,000 Hz + - 1.5 dB
• S/N Ratio: 90dB
• Operation: Class A + SRPP
• Standard valves: 1x ECC82/12AU7, 2x ECC88 (replaceable with ECC88/6DJ8/6922/6N1P/6N23P)
• Component assembly: Power Supply - PRINTED / Audio Section - POINT TO POINT
• Dimensions (WDH): 24 x 19 x 14 cm
• Weight 2.5 kg

On request with ALPS Blue potentiometer
Can be also be delivered as transformer coupled

http://www.tpaudio.it/cf-otl/



TPaudio CF-4T-OTL (€240)

TPaudio CF-4T-OTL.jpg
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TPaudio CF-4T-TOR.jpg
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For headphones between 30 and 600 ohm. Usable alone, or inserted between CD-player and amplifier, or beween pre-amp and power amplifier. Does not negatively influence the signal path. Gold plated RCA input and output connectors. 6.3 mm headphone jack. Cabinet in brushed stainless steel, side panels in solid ash or cherry .

• High Level Inputs: CD
• Sensitivity 'input: 250 mV
• Input impedance: 100 Kohm
• Output impedance: For 30 to 600 ohm headphones
• Output power of 0.7 watts per channel
• Frequency Response: 30Hz -80 000 Hz + - 1.5 dB
• S/N Ratio: 90dB
• Operation: Class A + SRPP
• Standard valves: 2x EC86, 2x ECC88 (replaceable with 6N1P/E88CC/6DJ8/6N23P)
• Component assembly: Power Supply - PRINTED / Audio Section - POINT TO POINT
• Dimensions (WDH): 24 x 19 x 14 cm
• Weight 2.5 kg

On request with ALPS Blue potentiometer
Can be also be delivered as transformer coupled

http://www.tpaudio.it/cf-4t-otl/



TPaudio CF-OTL6080 V2.0 (€350)

CF-OTL6080 V2.0.jpg
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• High Level Inputs: CD
• Sensitivity input: 250 mV
• Input impedance: 100 Kohm
• Output impedance: For 30 to 600 ohm headphones
• Output power of 1.8 watts rms per channel
• Frequency Response: 25 Hz to 100,000 + -1.5 dB
• S / N Ratio -90 dB
• Headphone Jack: XLR-4-pin JACK
• Operation: Class A + SRPP
• Standard valves: 2x EC86, 2x 6AS7-6080
• Component assembly: Power Supply - POINT TO POINT / Audio Section - POINT TO POINT
• Silver aluminum enclosure, side panels in solid beech or mahogany
• Dimensions (WDH): 26 x 35 x 16 cm
• Weight 6 kg

On request with ALPS Blue potentiometer

http://www.tpaudio.it/cf-otl6080/
https://www.facebook.com/tpaudio/



Custom Orders

TPaudio Custom Built 1.jpg
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TPaudio Custom Built 2.jpg
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TPaudio Custom Built 3.jpg
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TPaudio Custom Built 4.jpg
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Re: Rør, hvis du tør - S.I. Audio

IndlĂŚgaf kvik » 9. feb 2014, 00:54

S.I. Audio Intimo MK2 (€2950)

S.I. Audio Intimo MK2.jpg
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"Intimo" will give you unforgettable listening sessions, full of detail and musicality thanks to the OTL technology; and with record-breaking silence for an "All Tubes".

Great versatility: it can be combined with the vast majority of headphones on the market; once yours, it will be really difficult to part with it!

And thanks to the possibility of using up to two headphones at the same time, you can also make direct comparisons between headphones, or share your music with another enthusiast.


Features
• 2× 1 Watt RMS
• Designed for 8 to 600 ohm headphones
• Quiet operation. Low distortion and correct spectrum.
• Automatic optimization of the operating point of the power tubes throughout their lifespan.
• Triodes in all aspects of amplification, including the output stage.
• Two chassis. Separate tube power supply. Completely dual mono.
• Total absence of feedback.
• Up to two headphones can be used simultaneously (6.3mm Jack)
• Headphone handling optimized to reduce distortion and extend bandwidth
• Matched and selected power tubes particularly suitable for OTL and SRPP circuits: reliability, long life, easy future availability
• 2 power transformers, designed for audio use, according to CE/ISO standards with total power over 200 VA – primary/secondary shield to eliminate network interference
• Printed circuit boards with double thickness tracks - low loss fiberglass dielectric
• Passive components from leading brands

Specifications
• Frequency response: 2-100.000 hz +/- 1dB
• THD: 0.1%
• S/N ratio: 106 dB
• Inputs: 1 RCA/XLR Line
• Outputs: Unbalanced 2x Jack 6.3mm; Balanced 2x XLR (right channel and left channel)
• Load impedance 8-600 ohm
• Input impedance: 47Kohm
• Sensitivity: 250mV
• Tube complement: 2x ECC82; 4x 6H30; 2x 6L6GC
• Finish: Wood or Plex
• Dimensions (WxDxH): Amplifier 34.5x30x15.5cm; Power supply 23.5x28x10cm
• Optional: Balanced floating input €250

http://www.siaudio.it/prodottisiaudio/intimo-mk2/
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Re: Rør, hvis du tør - ARG.audio

IndlĂŚgaf kvik » 9. feb 2014, 02:05

ARG.audio DYANA 645 SE

ARG.audio DYANA 645 SE.jpg
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A Monotriode.. Why a monotriode? A low power single-ended tube, combined with high efficiency loudspeakers, allow the achievement of a very particular sound realism in itself, full of consistency, transparency and with a dynamic really unthinkable without listening fatigue.

The Diana 645 SE has its strength in manufacturing simplicity (few components, but good and above all used well!), has no negative feedback, even local!! Has no passive component (resistor, capacitor ...) in the signal path that can introduce colorations or distortions, except a resistor on the grid (Kiwame non-inductive).


Specifications
• Max. Power: 1,5 Wrms
• Tubes: 2x 6C45P-I
• Total harmonic distortion (THD unweighted): 0,015% 20Hz-20kHz
• THD max: < 0,6%
• Input impedance: 47 kOhm
• Frequency response: 20Hz-75kHz ±2dB
• Output impedance: 16, 25, 32 Ohm
• AC: 230V
• Weight: 13kg

http://www.argaudio.it/dyana-se645.html
Senest rettet af kvik 6. dec 2021, 19:03, rettet i alt 2 gange.
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Re: Rør, hvis du tør - Sophia Electric

IndlĂŚgaf kvik » 9. feb 2014, 02:08

Sophia Electric Baby Amplifier II ($1650)

Sophia Electric Baby Amp II.jpg
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Sophia Electric single ended integrated Baby Amplifier delivers 5 watts per channel x 2 of glorious lush magical sound, exceptional wide bandwidth, resolution and dynamics. More powerful than typical 2A3 single ended amplifiers. It can drive Sophia Electric made Model One(88dB) and Model Two speakers(88 dB) nicely in a typical home setting or in an office.

Retail Price $1250

Optional headphone amplifier function is being built on custom order at $399.99 extra, perfect for high impedance headphones HD600, HD650, Hifiman HE600 as well as low impedance Grado 125, Philips 9500, and Sony headphones. All above mentioned headphone models have been tested. Other headphones with similar impedance characters should work as well.

This single ended Baby headphone amplifier has transformer output, so the sonic performance is light-years ahead of those entry level headphone amplifiers that do not have transformer output.

Since 2001, Sophia Electric Baby Amplifier has built a track record for Audiophile sonic performance and superior reliability. This new single ended Baby amplifier is expected to be a winner as well.



Specifications
• Power: 5 watts x 2 single ended class A circuit
• Input: Two pairs of RCA inputs (CD and AUX)
• Output: Mil Grade 6P1T x 2
• Input/Driver tube: NOS 6J1 x 2
• Frequency: 12Hz-40KHz
• Hum: 1mv or less
• Weight: 20 pounds
• AC Power: 120V/60Hz or 235V/50Hz
• Required break in time: 50-100 hours
• Warranty: One year parts and labor, Sophia electric brand tubes one year, Non-Sophia Electric tubes 6 month


http://www.sophiaelectric.com/pages/amp/Baby_SE_II.htm
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