Rør, hvis du tør



Re: Rør, hvis du tør - Ecko Audio

IndlĂŚgaf kvik » 5. maj 2014, 19:35

Ecko Audio EVH (€2000)

Ecko Audio EVH.jpg
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The EVH implements EKCO’s signature valve amplification techniques into a headphones and pre amplifier system, for a beautifully intricate performance in its purest form. EVH is dedicated to achieving the best possible sound quality from any set of headphones connected to it. As a powerful headphone amplifier, the EVH uses 6SN7 vacuum tubes in triode mode for delightfully natural tonal characteristics.

The circuit has no overall loop feedback, and the Negative Feedback (NFB) technology lowers the output impedance, reduces distortion and improves the overall frequency response. This brings obvious benefits to sound reproduction.

A whole host of connections; 3-pin balanced, RCA, USB, coaxial, and optical inputs make it easy to listen to music without ever having to ponder on decoding different formats.

A smart toggle switch on the front panel switches the features from headphone amplifier to pre-amp system. EVH is perfect for enjoying music personally via your hi-fi system too as an integral pre-amp.


Specifications
• Input Impedance: 50kΩ
• Output Power: 500mW(32Ω )
• Output Impedance: 32Ω~300Ω
• Input Sensitivity: 500mV (500mW at 32 Ω)
• Frequency Response: 20Hz~20kHz (+0dB,-0.5dB)
• Distortion: 0.5% at 1kHz
• Channel Balance: ±0.5dB
• Ratio: 90dB
• Vacuum Tubes: 2x6SL7, 2x6SN7
• Digital Input Sampling Frequencies: 44.1kHz-192kHz, 384kHz (USB), DSD256 (USB)
• Input Jack: 3-pin balanced XLR, 1xRCA, 1xUSB, 1xCOAX, 1xOPT
• Output: 1x6.35mm headphone jack, 4-pin balanced headphone jack, 1xRCA output
• Size (WxDxH): 220mm x 300mm x 175mm
• Net Weight: 5.5kg

http://www.ekcoaudio.com/evh



Ecko Audio EVA (€2000)

Ecko Audio EVA.jpg
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Engineered to create a level of performance that goes beyond mere technicalities, the EKCO EVA Vacuum Tube Integrated Amplifier offers superbly realistic sound reproduction combined with stunning quality of craftsmanship. Powerful in its own right, it will delight with style and substance.

The EVA has a special ‘Alps’ motorised control knob for volume, and another for five input selections; RCA, OPT, COAX, USB, Bluetooth. A 6.3mm headphone jack is available for headphone devotees.

No undue softness or warmth and no blur. EKCO EVA sounds fast and clean, with a vast array of connectivity and compatibility


Specifications
• Rated Power Output: 2 x 15w RMS (6Ω) 2 x 12w RMS (8Ω / 4Ω)
• Frequency Response: 20Hz - 50kHz (-3dB)
• Total Harmonic Distortion: 0.50%
• Signal-to-noise Ratio (S/N): 90dB
• Input Impedance: 50kΩ
• Digital Input Sampling Frequencies: 44.1kHz-192kHz, 384kHz(USB),DSD256(USB)
• Valves: 1 x ECC83, 2 x ECC82, 4 x EL84EH
• Input Connections: 1 x RCA, 1 x OPT, 1 x COAX, 1 x USB B, Bluetooth (aptX)
• Output Connections: 2 x speaker terminal,1 x 6.35mm headphone jack
• Size(WxDxH): 220mm x 300mm x 180mm
• Net Weight: 7.2kg

http://www.ekcoaudio.com/eva
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Re: Rør, hvis du tør - Audio by Van Alstine

IndlĂŚgaf kvik » 6. maj 2014, 23:05

Van Alstine Transcendence 10 RB Preamplifier ($1000)

AVA Transcendence 10 RB Preamplifier.jpg
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The Transcendence 10 RB is an all-tube preamplifer that will appeal to audio purists embracing minimal setups and anyone looking for affordably priced, astonishingly detailed and musical tube sound.

The audio circuits are an improvement of our award winning Transcendence 8 tube design. In addition, we have recently completed extensive testing and refinement of our already class leading layout practices and employed those findings into the Transcendence 10 RB design. This engineering has resulted in the lowest noise tube preamplifier we have ever offered. The Transcendence 10 RB is an astonishingly natural, engaging, dynamic, high-resolution preamplifier that can interface seamlessly into and improve the most demanding audio systems.

The T10 RB is shipped with 2 premium select 6DJ8 tubes. 6CG7 or 6N1P tubes can also be used. Only the highest quality parts are used. We use 1% precision metal film resistors and all capacitors in the signal path are select polypropylene types.

AVA has long been an advocate of rock solid power supplies, and the power supply used in the T10 RB is no exception. The high voltage supplies are based around an RC PI network driving four active high voltage regulators, one for each tube section. This design takes supply noise and interaction down to nearly zero. In addition, there are separate regulated power supplies for the tube heaters and the headphone amplifier. The main circuit board uses multiple isolated ground planes strategically interconnected to eliminate the effects of ground currents. A very quiet custom made shielded power transformer completes the power supply design.

The Transcendence 10 RB also includes an exquisite headphone amplifier capable of driving the most demanding headphone loads. All Audio by Van Alstine amplifier have outstanding headphone performance. In our vacuum tube preamplifiers the headphone drivers are simply current buffers to provide a high current and low output impedance to any headphones. The active current amplifier for each channel is an LME49600 which has a 2000V/¾S slew rate and all of 0.00003 percent THD. So with AVA tube preamps, what you are actually listening to is the line tube section with only that ultra distortion buffer afterwards.  No gain stages or transistors used at all.

Our goal with the RB chassis design was to eliminate functions that audio purists don't use. This significantly reduces the parts and labor costs without compromising the audio quality. It allows us to offer uncompromising sonic beauty at a much lower cost than you would ever expect. The RB Chassis has a precision volume control, four sets of line level inputs (with one input being used for the optional phono section, if specified) and two sets of line audio outputs. The aluminum faceplate is finished with our incredibly durable double-anodized process. All input and output jacks are gold plated, and a removable IEC power cord is provided. Dimensions: 17" wide x 12" deep x 3.5" high. Shipping weight is 17 pounds.


https://avahifi.com/collections/preampl ... amplifier#



Van Alstine FET Valve CF RB Preamplifier ($1700)

AVA FET Valve CF RB Preamplifier.jpg
AVA FET Valve CF RB Preamplifier.jpg (58.28 KiB) Vist 68123 gange

With the Fet Valve CF RB, we have taken everything we know about getting tubes to work as well as they possibly can and rolled it into a minimal yet functional package. We have packaged these stunning circuits into a reduced feature chassis that will serve the needs of audio purists and budget sensitive audiophiles. The Fet Valve CF RB’s audio stage is all tube, using 12AT7 tubes for gain and 12AU7 tubes as cathode followers. This combination, done with outstanding multiple regulated power supplies, provides the amazing dynamic range, transparency, and load drive capacity that we demand. It will interface seamlessly into and improve the most demanding audio systems.This engineering has resulted in the lowest noise tube preamplifier we have ever offered. The Fet Valve CF RB is an astonishingly natural, engaging, dynamic, high-resolution preamplifier that can interface seamlessly into and improve the most demanding audio systems.

Only the highest quality parts are used. We use 1% precision metal film resistors and all capacitors in the signal path are select polypropylene types. The Fet Valve CF RB also includes an exquisite headphone amplifier capable of driving the most demanding headphone loads. In our vacuum tube preamplifiers the headphone drivers are simply current buffers to provide a high current and low output impedance to any headphones. The active current amplifier for each channel is an LME49600 which has a 2000V/¾S slew rate and all of 0.00003 percent THD. So with AVA tube preamps, what you are actually listening to is the line tube section with only that ultra distortion buffer afterwards.  No gain stages or transistors used at all.

AVA has long been an advocate of rock solid power supplies, and the power supply used in the Fet Valve CF RB is no exception. The high voltage supplies are based around six active high voltage regulators, one for each tube section. This power supply design takes supply noise and interaction down to nearly zero. In addition, there are separate regulated power supplies for the tube heaters and the headphone amplifier. Smoothing capacitors are carefully selected modern, high-reliability, high-capacity units. The main circuit board uses multiple isolated ground planes strategically interconnected to eliminate the effects of ground currents. A very quiet custom made shielded power transformer is used. The Fet Valve CF RB power supplies are incredibly quiet and rock stable platforms on which our audio circuits can perform their best.

The FET Valve CF RB shares chassis design with Transcendence 10 RB. The RB Chassis has a precision volume control, four sets of line level inputs (with one input being used for the optional phono section, if specified) and two sets of line audio outputs. The aluminum faceplate is finished with our incredibly durable double-anodized process. All input and output jacks are gold plated, and a removable IEC power cord is provided. Dimensions: 17" wide x 12" deep x 3.5" high. Shipping weight is 17 pounds.


https://avahifi.com/collections/preampl ... eamplifier



Van Alstine FET Valve CFR Preamplifier ($2100)

AVA FET Valve CFR Preamplifier.jpg
AVA FET Valve CFR Preamplifier.jpg (58.41 KiB) Vist 68123 gange

The Fet Valve CF SLR preamplifier takes our best tube preamp circuits to a new level of musicality and user convenience. It comes with remote volume, remote input switching, remote power, and even remote panel light dimming. Our lovely custom silver faceplate is standard, along with premium quality RCA jacks. The audio stage is all tube, using 12AT7 tubes for gain and 12AU7 tubes as cathode followers. This combination, done with outstanding multiple regulated power supplies, provides the amazing dynamic range, transparency, and load drive capacity that we demand. We use all polypropylene capacitors in the signal path and the newest high-capacity power supply capacitors. As a standard feature an exquisite headphone amplifier is also included.

The high voltage power supplies are based around six active high voltage regulators, one for each tube section. This design takes supply noise and interaction down to nearly zero. In addition, there are separate regulated power supplies for the tube heaters and the headphone amplifier. Smoothing capacitors are carefully selected modern, high-reliability, high-capacity units. The main circuit board uses multiple isolated ground planes strategically interconnected to eliminate the effects of ground currents. A very quiet custom made shielded power transformer is used. The Fet Valve CF SLR power supplies are incredibly quiet and rock stable platforms on which our audio circuits can perform their best.

All Audio by Van Alstine amplifier have outstanding headphone performance. They also drive low input impedance headphones just fine. In our vacuum tube preamplifiers the headphone drivers are simply current buffers to provide a high current and low output impedance to any headphones. The active current amplifier for each channel is an LME49600 which has a 2000V/¾S slew rate and all of 0.00003 percent THD. So with AVA tube preamps, what you are actually listening to is the line tube section with only that ultra distortion buffer afterwards.  No gain stages or transistors used at all.

The SLR chassis features a precision remote control volume control along with five sets of remote switchable inputs and two sets of line audio outputs. Additional functions include a precision Balance control, Mono/Stereo switch, Low Gain (for better VC use with high-efficiency speakers and high gain amplifiers), High Filter (to tame excess brightness from low quality sources), Low Filter (to deal with warped records and turntable rumble), support for tape monitoring. The 1/4" sculpted aluminum face plate is finished with our incredibly durable double-anodized process is standard. All RCA jacks are premium quality, gold plated, heavy duty parts. A removable IEC power cord is standard as well. Dimensions: 17" wide x 12" deep x 3.5" high. Shipping weight is 17 pounds.


https://avahifi.com/collections/preampl ... eamplifier
https://www.audiocircle.com/index.php?topic=144718.0
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Re: Rør, hvis du tør

IndlĂŚgaf Claus-DK » 7. maj 2014, 00:26

Jeg takker og bukker med den allerdybeste respekt for denne rundtur, for hulen hvor er det godt..
Tusind tak for indsatsen Ketil.. rullw3 rullw3 rullw3
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Re: Rør, hvis du tør - PS Audio

IndlĂŚgaf kvik » 9. maj 2014, 10:34

PS Audio BHK Signature Preamplifier ($6700)

PS Audio BHK Signature Preamplifer.jpg
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Introducing one of the most remarkable musical instruments in the world, the BHK Signature Preamplifier. This exceptionally built vacuum tube preamplifier opens up the music and reveals nuances, life and space not previously heard on your system. It is the perfect interface between your sources and power amplifier. Designed by Bascom H. King, the BHK Signature distills Bascom’s 50 plus years of high-end audio design experience into a single masterpiece of audio amplification. “This is the best sounding preamplifier I have ever designed or heard,” and that’s saying a lot for a man of Bascom’s experience. Preamplifiers play a critical role in any separates audio system, strategically positioned between sources of music: CD players, phono preamps, DACs, tape recorders and tuners – and your power amplifier – the preamp serves essential roles of control and isolation. Control is simple in concept, but extraordinarily difficult to design in an acoustically transparent manner. Control duties such as input switching, volume, balance, and amplification can place unwanted acoustic thumbprints on the music if not designed with extraordinary care. The challenge in any design is to do as little damage to music’s purity as possible. Details on how each section of the BHK Signature executes control with minimal sonic impact can be found below.

The single most important element of design
Over Bascom’s half century of designing high-end audio products for companies like Infinity, Marantz, Conrad Johnson, Counterpoint,  Constellation Audio, and now PS Audio, one overriding principle has dominated all others when sonic compromise isn’t an option: use of a vacuum tube on the input. The isolation and near-perfect linearity of a well designed vacuum tube input stage cannot be duplicated by solid state means, though many have tried.

“Vacuum tubes are simply more convincing and musically accurate than any other input configuration I have ever tried,” said Bascom, and the BHK Signature preamplifier is demonstrative of this observation.

The BHK Signature Preamplifier features two 12AU7 dual triode vacuum tubes in the input stage that act as a zero feedback balanced input amplification pair. A unique self biasing constant current source and user selectable switch combination allows those who like to roll their own tube selections to place any acceptable 6, 7 or 12 series vacuum tubes inside the preamp. The twin hand-selected vacuum tubes that ship with the BHK are the preferred models we recommend and use in PS Audio’s Music Room One reference system.

It all starts at the input
The BHK Signature Preamplifier features 5 identical balanced and single ended inputs. Each of the inputs, whether single ended (RCA) or balanced (XLR) are immediately converted to a pure balanced signal by the dual triode vacuum tube for lowest distortion, highest linearity performance. Input switching is accomplished through hand-selected double-pole double-throw, gold plated relays that we’ve chosen for their sonic neutrality. The signals, once selected, are passed directly the revolutionary new multi-stage attenuator controlling both volume and balance.
If the preamp is going to be part of a home theater system controlling the main left and right channels, each input can be user-assigned as a home theater bypass.

Controlling the volume is a critical task
Perhaps the most difficult challenge facing preamp designers is the volume control. Simple in concept, controlling the level fed to your power amplifier, without damaging the sound, can be one of the most daunting design tasks. During high-end audio’s formative years it had become standard practice to incorporate a high quality rotary potentiometer to control the volume. Over the years designers discovered even the finest of those controls imparted an unacceptable sonic thumbprint, robbing the music of life and openness. Various schemes at removing the potentiometer’s degradation were tried with varying degrees of success. They included stepped attenuators, conductive plastic impedance elements, electronic gain circuits, relay, CMOS switching, and a host of other innovative ideas.

Bascom King decided to try a fresh and novel approach in the Signature preamplifier. A combination of an input stepped attenuator, built around the highest quality passive components for course volume adjustments, coupled with controlling the actual gain of the vacuum tube for finer steps, turned out to be the most sonically transparent level control we have yet heard. This unique topology, which can be controlled from either the front panel rotary controller or the remote control, provides the lowest possible impact on music passing through–and is one of the primary reasons the BHK Signature presents music in such a revealing, open manner.

Once amplified the signal must interface with the outside world
A designer’s best efforts at preamplification can be wasted if the interface between the preamp’s output, the interconnecting cables, and the receiving power amplifier are not optimized for lowest impact, best performance. Cable interactions and power amp input stages can test the mettle of any design, so it is critical a preamp’s output stage provide a high current, class A, low impedance design. The BHK Signature preamplifier output stage is a high-bias class A MOSFET design that is unaffected by cable and power amplifier interface challenges. Simultaneous connections of both single ended (RCA) and balanced (XLR) outputs have minimal impact on the delicate vacuum tube gain stage and provide remarkable isolation between source components and the power amplifier of your system.

This high current low impedance Class A output stage is part of the reason the BHK Signature delivers music in such an effortless fashion. One of the first qualities owners of the preamplifier will appreciate is its remarkable ability to isolate source and control from the power amplifier – and one of the principle factors in the BHK Signatures extraordinary life-like presentation of music, preserving every nuance in your media.

The headphone amplifier
Not every system is based exclusively around the loudspeaker and power amplifier. Many of today’s finest systems incorporate high-end headphones as either an adjunct to the main system or are the main system. Built into the BHK Signature is a state of the art headphone amplifier capable of delivering near perfect performance for any high-end headphone. Take the time to click on the video tab above these words to hear what designer King has to say about his design philosophies when it comes to headphones. The BHK Signature headphone amplifier was borne from years of work on such products as the Audeze King (designed by Bascom) among others. Extremely low–near zero–output impedance, zero feedback, transformer coupled, MOSFET and discrete, the internal headphone amplifier inside the BHK Signature is a tour de force that honors the music the designer worked so hard to preserve. 



Features
• Zero-loss vacuum tube input stage
• User accessible switch allows both 12 volt and 6 volt tubes to be used
• Differentially coupled balanced MOSFET output stage
• All through hole construction (no surface mount parts)
• PRP resistors in signal path
• 5 RCA Single ended inputs
• 5 XLR balanced inputs
• Single ended and balanced outputs (can be used together or separate)
• Fully balanced input to output
• High current oversized power transformer
• Fully regulated power supplies using BHK designed MOSFET discrete voltage regulators
• Full BHK designed zero feedback, discrete MOSFET headphone stage
• Remote control
• Front panel standby button for vacuum tube stage
• -3dB greater than 200kHz
• Volume and balance through a revolutionary new combination of gain and attenuation control
• Two output DC control triggers
• Easy access to tubes if you want to roll with different ones
• Each input can be configured as a HT bypass


Specifications
Physical
• Unit/Shipping Weight: 22 lbs [9.97 kg] / 31 lbs [14 kg]
• Unit/Shipping Dimensions: 17” x 14” x 4” [ 36cm x 43cm x 10cm] / 20.5”x 24” x 10” [52cm x 61cm x 25cm]
Power requirements
• Input Power: Model specific 100VAC, 120VAC, or 230VAC 50 or 60Hz
• Power Consumption: 60W
Audio inputs
• Coaxial RCA single ended: 5
• XLR Balanced: 5
• Input Impedance Unbalanced (RCA): 33KΩ minimum
• Input Impedance Balanced (XLR): 66KΩ minimum
• Sensitivity Unbalanced: 1.3V/33KΩ
• Sensitivity Balanced: 1.3V/66KΩ
Audio Outputs
• Coaxial RCA single ended: 2
• XLR Balanced: 2
Analog Audio Output
• Output level: 4.0 Vrms
• Output Impedance: <100Ω
• Frequency Response 20-20KHz: +/- 0.1dB
• THD&IM @ 1KHz (full scale): <0.03%
• Bandwidth: -3dB 0.1Hz - 200kHz
DC Triggers
• +12V
Headphone Performance
• Output Power: >200mW@300Ω, >4W@16Ω
• S/N Ratio: >90dB (1KHz)
• THD & IM 1 volt out: <0.02%
• Output Impedance: <0.5Ω


https://www.psaudio.com/products/bhk-si ... amplifier/
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Re: Rør, hvis du tør - Fezz Audio

IndlĂŚgaf kvik » 9. maj 2014, 11:21

Fezz Omega Lupi (€1100)

Fezz Omega Lupi.jpg
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An amplifier that can handle even the most demanding headphones. The natural and artistic presentation, as offered by the Omega Lupi, leaves no doubts that this is a highest class device. Check what Your headphones are really capable of. From now on Your amplifier will not be a limiting factor.

Omega Lupi, is the design that we worked on the longest in our history. We opened the project in March 2017 and presented the prototype in November of the same year during the Audio Video Show in Warsaw. We wanted the opinions of the users and even though they were positive, we knew then that the design would satisfy us only when Omega Lupi was able to drive even the most demanding headphones - also those with extremely high impedance.

We knew thera were a lot of headphone amplifiers on the market, but either they were simple designs for relatively cheap headphones, or very expensive ones, for extremely demanding customers, and we wanted to create a universal headphone amplifier for a wider group of people listening to music in this way.

That is why, right after the Show ended, we started work from the very beginning. The chassis was the only element left from the prototype. Everything inside was rebuilt from scratch. As you well know, the heart of each tube amplifier are not only the tubes but, above all, transformers, and we spent the most time building those. But it's probably obvious - Toroidy.pl is a strong player on the market of audio transformers and we have unique experience with different types of designs.

Omega Lupi is a one-of-a-kind amplifier. Most of the headphone amplifiers are OTLs - that is, featuring no output transformers. And we wanted the headphones to be treated in our design as a loudspeaker set, because what other than good loudspeakers headphones are? The only way to achieve this is to match their impedance using transformers - in other words, do it in the same way as in an integrated stereo tube amplifier.

We have therefore designed winding in our transformers to optimally match headphones with low (up to 32 Ί), medium (up to 300 Ί) and high (up to 600 Ί) impedance. Thanks to this solution we have achieved optimal working conditions of headphone drivers, and thus negligible low distortion and great dynamics while maintaining the tube character of the sound.

Omega Lupi is a very efficient amplifier. During the designing process, we examined about 30 pairs of headphones - starting from the simplest dynamic ones, through several hundredth ohm ones used often in studios, and ending with planar Audeze models. Each and every time our amplifier had enough “juice” to properly drive every cans.

At this point, an important question comes to mind: why PCL86? One of the reasons is historical - we built our first tube amplifier called Laura (still as Toroidy.pl) using this tube, which captivated many listeners. The second reason is - we value this tube very much. Considering its price, availability, sound and origin (POLAMP Nakło), we could not deny ourselves the pleasure of designing an amplifier using the PCL86 valve.

This is an outstandingly engineered design, technologically advanced (two tubes in one glass enclosure) triode-pentode. It's a pity that nobody is producing them today. Fortunately, due to the wide availability of NOS tubes (these were, after all, very popular TV tubes), they are easy to buy and at very low prices. Fezz Audio bases on the NOS tubes made by the Polish company Polamp, which are still available on the market and we believe that someday they will come back to the market.

We would like to draw your attention to the restrictive selection of tubes and the exceptional care of assembly. It is about exceptionally demanding sound aspects - after all, according to the design assumptions, it is an over-ear speaker system. So we put the ear in the speakers and there must be an absolute silence, black background, no hum - just silence.



Specifications
• Max. output power: 2 x 250mW
• Circuit type: Push-pull AB1 Class
• Output impedance: 32-600Ω
• Inputs: 1 x RCA
• Outputs: 1 x RCA
• Harmonic distortions THD: < 0,3%
• Frequency response: 20Hz-120kHz (-3dB)
• Power consumption: 90W
• AC fuse: 3,15A T
• Net weight: 9,5 kg
• Dimensions: 340x355x150mm
• Tubes: PCL86 x4 (power output, pre-amp & drivers)
• Bias adjustment type: automatic
• Optional equipment: tube cage


https://fezzaudio.com/index2.php#whatwedo
http://highfidelity.pl/@main-847&lang=en
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Re: Rør, hvis du tør - OCTAVE Audio

IndlĂŚgaf kvik » 28. okt 2015, 15:13

OCTAVE V16 Single Ended (€9600)

OCTAVE V16 Single Ended.jpg
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The new OCTAVE V 16 Single-Ended amplifier:
Uncompromising Single-Ended Class-A technology, redefined.

The founding principle at OCTAVE has always been to apply modern innovations to classic tube technology. The time has now come for OCTAVE to apply the company's exclusive amplifier technologies to a single-ended design, as this circuitry is desirable for its natural audio reproduction and is capable of realizing clear sonic benefits that are particularly ideal for high-efficiency loudspeakers as well as for headphones. Single-ended amplifiers possess a naturally harmonic sonic signature and offer an extremely lucid midrange, as the music signal is not split and thus no crossover distortions of the positive and negative half-waves arise.

Developing a single-ended Class A circuitry presented a unique challenge for OCTAVE: how to fully overcome the disadvantages of this amplifier principle while bringing its sonic benefits to the forefront. OCTAVE applied its myriad technical innovations and proprietary output transformer technology to develop a sophisticated new amplifier to meet this challenge: The result is the all-new OCTAVE V 16 Single Ended integrated amplifier, the company's first ever single-ended design.


While the natural sonic character and midrange clarity of the single-ended circuit is uniquely desirable, there are also some known limitations to the single-ended amplifier topology that needed to be addressed:

1. Level reduction in the bass frequencies – OCTAVE has eliminated this problem inherent in single-ended amplifiers via a new, highly specialized magnetic-field compensated output transformer. OCTAVE is renowned for its proprietary transformer designs which are developed, wound and meticulously crafted in-house. The power bandwidth in the bass frequencies of the OCTAVE V 16 Single Ended remains linear up to 10 Hz as a result of this customized transformer design.

2. Level reduction in the high frequency range and limited bandwidth - By means of specific driver stages and an optimization of the feedback, OCTAVE has been able to extend the bandwidth of the OCTAVE V 16 Single Ended from 10 Hz to 100 kHz, a bandwidth spec that was previously considered impossible to achieve from a single-ended amplifier design.

3. Relatively high residual noise in the loudspeaker output - The level of hum in the OCTAVE V 16 Single Ended was rendered virtually immeasurable via OCTAVE's optimized positioning of the mains transformer in respect to the output transformer, which also negates the need for an outboard power supply. The company's sophisticated electronic stabilization circuits serve to further ensure that any sources of noise or hum is eliminated. The low-frequency noise level achieved at the loudspeaker as well as the headphone outputs is in the range of – 110 dB / 1W at 8 ohms, which corresponds to approximately 15 – 20 μV at 50 Hz.

4. High temperatures during high-current rest in Class-A operation – Most single-ended Class-A amplifier designs are extremely inefficient, typically idling between three to five times the output power. Thus these devices become very hot during normal operation. The OCTAVE V 16 Single Ended single-ended amplifier utilizes an adaptive three-step setting of the Class A mode. The Class A Level is automatically adjusted between 100% and 35% to the load profile of the loudspeaker (4/8 hms) and headphones, which considerably reduces the amplifier's operating temperature, while significantly extending its lifespan as well. In addition, the OCTAVE V 16 Single Ended features a unique version of OCTAVE's energy-saving "Ecomode" technology, which serves to reduce the Class-A level to 35% during pauses in the music signal, and inaudibly rises when a musical signal is once again present.

5. Disadvantages of expensive, directly heated triodes - OCTAVE has developed the OCTAVE V 16 Single Ended to operate a KT 120 pentode tube in a triode circuit. It is ideally suited for Single Ended Class A operation due to its particular characteristics: very high performance, excellent longevity, tight tolerances, and widespread availability – while avoiding the technical problems of a traditional triode tube such as the 300 B. The OCTAVE OCTAVE V 16 Single Ended architecture will thus also allow the use of KT 150, KT 88, or 6550 tubes, for example, making its design extremely universal.


OCTAVE has also equipped the V16 Single Ended with an optional Pre-Out feature (needs to be opted for at time of purchase, cannot be installed later). While adding complexity, this option affords great flexibility. Thus the V 16 Single Ended is a perfect companion to myriad system setups, and can be used to drive headphones, high efficiency loudspeakers, hybrid systems (with active bass), or in conventional bi-amp setups. An equalizer is used to cut the deep bass frequencies (below 80 Hz), so the V 16 Single Ended is only responsible for the midrange and treble. The frequency range is optimized by Octave and thus not adjustable. One primary benefit in the case of bi-amping is to take advantage of the breathtakingly beautiful single ended performance in the sensitive mid and high frequency range while employing a separate power amp (or internal amp in the speaker) to handle the bass region.


The long development time of the OCTAVE OCTAVE V 16 Single Ended has surely paid off: an uncompromising single-ended Class A integrated amplifier that delivers ultra-quiet operation highlighted by deep bass, a natural midrange and silky-smooth highs combined with an unsurpassed degree of reliability and longevity. A pure, modern classic amplifier in every regard.



Specifications
• Output tubes: 2x Tung-Sol KT120 (EL34, KT77, 6CA7, 6550, KT88, KT150)
• Driver tubes: 1x JJ ECC82 (12AU7) , 2x Telefunken EF800 (EF184, 6EJ7)
• Power Output: High Mode: 2 x 8 W RMS / Low Mode: 2 x 5 W RMS
• Frequency Response: 10 Hz - 80 kHz @ 5 W 0 / -3 dB
• Total Harmonic Distortion: 0,5% bei 3 W an 4 Ohm
• Signal-to-Noise Ratio: - 110 dB / 8 W
• Load Impendance Loudspeaker: 3 - 32 Ohm ( BIAS High - Low )
• Load Impendance Headphone: 6 - 2000 Ohm ( OUT Low - High )
• Gain: 26 dB
• Inputs: 2x Line RCA, 1x Line XLR
• Outputs: 1x Loudspeaker, 1x Headphone 6.3 mm, 1x Headphone 4-pin XLR, 1x Regulated preamplifier RCA (optional only ex factory)
• Input Sensitivity: 400 mV
• Input Impedance: 50 kOhm / Cinch, 25kOhm / XLR
• Crosstalk left/right: 40 dB
• Crosstalk Input/Input: > 90 dB
• Output Impedance Pre Out: 40 Ohm
• Max. Level Pre Out: 5 V RMS
• Power Comsumption: 120-200 W idle, 200 W @ full power
• Main Fuse: 230/240 V main: 2,5 A slow-blow type H
• Dimensions (WDH): 21 x 30 x 34 cm
• Weight: 19 kg
• Finishes: Ice Grey, Metallic Black, and Ocean Blue
• Standard Accessory: Power cord, IR-Remote Control, Allen key for removing the cover
• Options: Pre-Out ( only ex factory ), Black-Box and Super Black Box


http://octave.de/en/htdocs/verstaerker/v16.php:
https://soundrebels.com/octave-v-16-sin ... glish-ver/
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Re: Rør, hvis du tør - Feliks Audio

IndlĂŚgaf kvik » 28. okt 2015, 16:09

Feliks Echo 2 (€800)

Feliks Echo 2.jpg
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Echo mk2 is the entry level OTL amplifier by Feliks Audio, and offers amazing sound clarity with the typical ‘tube’ feel. The amplifier is fully handmade from high quality, carefully selected components. The amplifier’s sweet spot lays with medium to high impedance headphones (from 80ohm), and can be also used as effective tube pre-amp for both tube and transistor amplifiers.

Echo mk2 is built around two 6N1P driver and two 6N6P power tubes. Power supply is based on a custom made stabilized toroidal transformer with electronic ripple suppression. The amplifier is equipped with automatic bias circuit, therefore no re-tuning is required after changing tubes.


Features
• Incredibly detalied music scene
• Very low noise levels and AC interferens
• Broad frequency: 15 Hz - 45 kHz ±3 dB
• Perferms very well also as pre-amp for tube or solid state power amps
• Gold plated ceramic tube sockets
• 3 selectable audio sources plus Mute function
• Pre-amp mode implemented
• Input/output safeguards eliminating undesirable power on/off noises and distorsions
• Wooden, solid oak side panels
• Extended 3-year warranty

Technical specifications
• Impedance: 100 k ohm
• Frequency response: 15 Hz – 45 Khz ± 3 dB
• Power output: 350mW
• Amplification level: 20dB
• THD: 0.4 % (300 ohm, 20 mW)
• Optimal headphones impedance: 80 – 600 ohm
• Headphones output: Jack 6.3mm
• Dimensions: 26.8 × 21.7 × 11.8 cm
• Weight: 3.5 kg
• AC Voltage: 230V, 120V

Box content
• Beautifully hand-crafted Tube Amp
• 1 pair of driver tubes
• 1 pair of power tubes
• AC cord
• User Manual
• Warranty Card

https://feliksaudio.pl/product/echo-2/



Feliks Elise (€1600)

Feliks Elise.jpg
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Elise tube amplifier by Feliks Audio offers exceptionally dynamic sound stage and superb level of detail with the typical “tube” feel. The amplifier is a fully proprietary design, built from high quality, carefully selected components, allowing it to deliver exceptional sound quality on a broad range of headphones, including low impedance headphones (32 ohm). Alternatively, Elise can be used as pre-amp for both tube and transistor amplifiers.

Power supply is based on a custom made stabilized toroidal transformer with electronic ripple suppression. The amplifier is equipped with automatic bias circuit, therefore no re-tuning is required after changing tubes.Input/output safeguards eliminates undesirable power on/off noises and distortions.

Elise is originally equipped with high quality tubes. Stock driver tubes are 6SN7 power tubes are 6N13S. Tubes can be changed by the user, to the following:
Driver tubes: 6N8S, CV181, ECC32, 5692, 6F8G
Power tubes: 6080, 5998, 6N5P, 6N5S, ECC230, 7236, CV2523.


Features
• Virtually no background noise
• Beautifully hand-crafted
• New high-end audio class transformer providing improved stability, more power and better resistance to external interference
• Driver tubes are upgraded to high quality PSVANE 6SN7 "UK Audio!
• Broad frequency: 10 Hz - 60 kHz ± 3 dB
• Great tuning potential (via upgraded tubes)
• Pre-amp mode implemented
• Input/output safeguards eliminating undesirable power on/off noises and distorsions
• Extended 3-year warranty
• Improved noise reduction circuit

Technical specifications
• Impedance: 100 k ohm
• Frequency response: 10 Hz – 60 Khz ± 3 dB (300 ohm)
• Power output: 200mW
• Amplification level: 20dB
• THD: 0.4 % (300 ohm, 20 mW)
• Optimal headphones impedance: 32 – 600 ohm
• Headphones output: Jack 6.3mm
• Dimensions: 30.6 × 20.3 × 19 cm
• Weight: 6 kg
• AC Voltage: 230V, 120V

Box content
• Beautifully hand-crafted Tube Amp
• 1 matched pair of driver tubes PsVane 6SN7 Hi-Fi
• 1 matched pair of power tubes 6N13S (NOS)
• AC cord
• User Manual
• Warranty Card

https://feliksaudio.pl/product/elise/



Feliks Euforia (€2200)

Feliks Euforia.jpg
Feliks Euforia.jpg (335.09 KiB) Vist 32247 gange

Euforia is Feliks Audio flagship headphone amplifier launched in 2017. This beautifully handcrafted OTL, built around two 6SN7 and two 6AS7G tubes, delivers amazing dynamics, sound stage and level of details never heard of before in tube amplifiers, at the same time giving the unmistakably tube sound signature. Euforia's unique design allows for exceptional sound quality with a broad range of headphones, powerful enough to drive even demanding low impedance headphones (<32 ohm) including planar magnetics.

Euforia is built with two 6AS7G (also accepts 6080) power tubes and two 6SN7 driver tubes. Power supply is based on a custom made stabilized toroidal transformer with electronic ripple suppression. The amplifier is equipped with automatic bias circuit, therefore no re-tuning is required after changing tubes


Features
• Unrivalled neutrality and sound stage
• Incredibly detailed and dynamic music scene
• Crossfeed circuit - a revolutionary solution in tube amplifiers
• Virtually no background noise
• Beautifully hand-crafted
• Broad frequency: 8 Hz - 75 kHz ± 3 dB
• Premium driver tubes
• Improved noise reductiona circuit
• High-end class power transformer
• 100% pure silver signal wiring in teflon jakcet
• Heavy duty teflon gold-plated tube sockets
• High quality Mundorf and Nichicon capacitors
• Dale and Caddock resistors
• Preamp safety circuit
• Gold-plated RCA inputs
• Extended 3-year warranty

Technical specifications
• Impedance: 100 k ohm
• Frequency response: 8 Hz – 75 Khz +/- 3 dB (300 ohm)
• Power output: 250mW
• Amplification level: 20dB
• THD: 0.4 % (300 ohm, 20 mW)
• Optimal headphones impedance: 32 – 600 ohm including planar magnetics
• Headphones output: Jack 6.3mm
• Dimensions: 31.3 × 20.3 × 19.3 cm$
• Weight: 7 kg
• AC Voltage: 230V, 120V

Box content
• Beautifully hand-crafted Tube Amp
• Matched pair of driver tubes PsVane CV-181 Mk2 “Gold”
• Matched pair of power tubes 6N13S (NOS) *
• AC cord
• User Manual
• Warranty Card

https://feliksaudio.pl/product/euforia/



Feliks Euforia Anniversary (€3100)

Feliks Euforia Anniversary.jpg
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Special version of our flagship amplifier Euforia – the 20th Anniversary Edition
 
Features
• Ultimate achievement in pure OTL technology
• New level of smoothness and clarity: 100% single crystal copper wiring, premium internals
• High gloss space grey finish to celebrate the anniversary

Technical specifications
• Impedance: 100 k ohm
• Frequency response: 7 Hz – 80 Khz +/- 3 dB (300 ohm)
• Power output: 280mW
• Amplification level: 20dB
• THD: 0.4 % (300 ohm, 20 mW)
• Optimal headphones impedance: 32 – 600 ohm including planar magnetics
• Headphones output: Jack 6.3mm
• Dimensions: 31.3 × 20.3 × 19.3 cm$
• Weight: 7 kg
• AC Voltage: 230V, 120V

Box content
• Matched pair of driver tubes PsVane CV-181 Mk2 “Gold”
• Matched pair of power tubes 6N13S (NOS)
• AC cord
• User Manual
• Warranty Card

https://feliksaudio.pl/product/euforia-anniversary/



Feliks Envy (€6500)

Feliks Envy.jpg
Feliks Envy.jpg (511.23 KiB) Vist 32247 gange

Please welcome “Envy" - the latest and the most advanced headphone amplifier from Feliks Audio.
 
This new flagship was designed from scratch to satisfy the most demanding head fi needs. It serves customers requiring not only immense output power (up to 8 Watts from the 300B tubes) to drive virtually any available headphones (dynamic or planar magnetic), but also provide utmost sound quality as a balanced Class A, single-ended design. The fit and finish is of course immaculate, with various natural oiled wood options available to customize the looks. If you’re looking for the best premium tube amplifier for your high-end headphones, we hope you have found your end-game.


Features
• Up to 8 Watts of sophisticated single ended power from the legendary 300B tubes
• User selectable Hight/Medium/Low headphone impedance for best match with any dynamic/planar magnetic headphones
• Exclusive finish and extensive customization options
• State of art oiled wood finish (oak, other possible)
• Your own laser engraving
• Internal components customization
• Multiple inputs and outputs for maximum functionality
• Balanced input and output using XLR connections for best fidelity, plus 3 selectable audio sources
• Pre-amplifier output RCA and XLR
• Standard Edition includes Electro Harmonix Gold 300B power tubes and Premium copper signal wiring
• Performance Edition includes Full Music 300B power tubes and UPOCC (single crystal copper) signal wiring

Technical specifications
• Power tubes: 300B
• Driver tubes: PsVane CV-181 mk2 (6SN7)
• Inputs: 2x unbalanced RCA inputs (IN1, IN2) / 1x balanced XLR input (IN3)
• Input sensitivity 1V RMS
• Input impedance: IN1 & IN2 (RCA) 100kΩ / IN3 (XLR) 10kΩ
• Pre-Out: 1x pair of RCA / 1x pair of XLR
• Maximum voltage on the above outputs is 5V (RMS) at output impedance of 600Ω and THD<0,5%
• Impedance selector guidance: LO – up to 60Ω / MID – up to 300Ω / HI – up to 600Ω
• Amplifier’s impedance: LO at 32Ω load is 3,8Ω / MID at 100Ω load is 8,8Ω / HI at 600Ω is 20Ω
• Output powered measured at MID impedance setting at load of 16Ω is 5W with THD ⩽1% (maximum 8W at THD >5%)
• Frequency response: 8Hz÷100kHz ±3dB / 18Hz÷40kHz ±1dB
• Headphone outputs: 6.3mm and XLR
• AC voltage 50/60Hz: 230V version (±5%) / 115V version (±5%)
• Power consumption: 110VA
• Weight: 15,1kg (without packaging)
• Dimensions (LWH): 35x33x18,5cm – w/o tubes / 35x33x24,5cm – with tubes

Box content
• Matched pair of driver tubes CV-181(6SN7)
• Matched pair of power tubes 300B
• AC cord
• User Manual
• Warranty Card

Upgrade options
• Performance edition +€500
• Wood finish: American walnut +€200, Custom +€400


https://feliksaudio.pl/product/envy/
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Re: Rør, hvis du tør -

IndlĂŚgaf kvik » 28. okt 2015, 16:32

Reserved..
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Re: Rør, hvis du tør -

IndlĂŚgaf kvik » 28. okt 2015, 17:46

Reserved..
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Re: Rør, hvis du tør - Viva Audio

IndlĂŚgaf kvik » 31. okt 2015, 12:45

Viva Egoista 845 (€12500)

Viva Egoista 845.jpg
Viva Egoista 845.jpg (108.03 KiB) Vist 74692 gange

Egoista, being our first ever venture into headphone amplification, has benefited from the vast amplifier design experience of Viva Audio’s engineers. It is the pinnacle of our legendary no-compromise amplifier design and will drive effortlessly the most difficult loads with unparalleled resolution and dynamics. It has been called a “Majestic Masterpiece” and was given the “2014 Product of the Year” award by HEADPHONE.GURU online publication. In 2018, CNET Magazine called it “the Ferrari of extreme high-end audio for those who crave the very best.” Egoista 845 comes in a virtually unlimited array of colors. You can personalize your Egoista to match your interior.

• Zero negative feedback pure class A operation
• Tube complement: 1x 6N1P, 1x 6SN7GTB, 2x 845, 2x EH5U4GB
• Inputs: 4 source inputs and 1 Direct Input bypassing the preamp stage
• Outputs: 2x XLR Mono Output, 2x Jack Standard Stereo Outputs, 2x XLR 4 pin Stereo
• Dimensions w×h×d: 430×250×520 mm
• Weight: 30 kg

http://vivaaudio.com/en/products/egoista-845/
http://parttimeaudiophile.com/2014/10/2 ... amplifier/
http://www.head-fi.org/t/729408/viva-eg ... asterpiece



Viva Egoista 2A3 (€8700)

Viva Egoista 2A3.jpg
Viva Egoista 2A3.jpg (1.31 MiB) Vist 69085 gange

Egoista 2A3 continues Viva's state-of-the-art amplifier design traditions, offering a blend of incredible sonic characteristics built on a smaller chassis. Tube enthusiasts love 2A3 power tubes for speed, articulation, detail, incredible tonal range and timbre accuracy. Egoista 2A3 delivers it all with unsurpassed dynamics, driving headphones with authority and ease. Leading hi-fi industry publication Head-Fi.org called Egoista 2A3 “addictive” and its sound “always so smooth and engaging.” According to Audiotraveller review, Egoista 2A3 “may well be the best-sounding amplifier on the market.” Egoista 2A3 comes in a virtually unlimited array of colors. You can personalize your Egoista to match your interior.

• Zero negative feedback pure class A operation
• Tube complement: 2 x 6C45Pi; 2 × 2A3
• Inputs: 4 × RCA
• Outputs: 2 × Headphone Jack Outputs
• Dimensions w×h×d: 410×185×410 mm
• Weight: 19 kg

http://vivaaudio.com/en/products/egoista-2a3/
http://www.head-fi.org/products/viva-eg ... iews/13542



Viva Egoista STX (€13800)

Viva Egoista STX.jpg
Viva Egoista STX.jpg (1.52 MiB) Vist 69085 gange

Viva Egoista STX is the newest addition to the celebrated Viva Egoista family of headphone amplifiers. Egoista STX is specifically designed for high-end electrostatic headphones like STAX or HiFiMan. Egoista STX is capable of realizing the full potential of electrostatic headphones that no existing amplifiers can match. It is the first electrostatic headphone amplifier that can produce deep realistic bass. Effortless, clear sound, lack of distortion, natural tonal balance and ultra-wide dynamic range make Viva Egoista STX the best product in its class available on the market. Its performance will enchant the most demanding music aficionado and convince the most critical audio connoisseurs. Egoista STX comes in a virtually unlimited array of colors of your choice. You can personalize your Egoista STX to match your interior.

• Zero negative feedback pure class A operation
• Tube complement: 2x 300B; 2x 6C45Pi; 2x 6H30PI
• Inputs: 4 source inputs and 1 Direct Input bypassing the preamp stage
• Outputs: 2 × Five Pin Stereo Electrostatic Headphone Jack connectors
• Dimensions WHD: 410×185×410 mm
• Weight: 21kg

http://vivaaudio.com/en/products/egoista-stx/
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Re: Rør, hvis du tør - Quad

IndlĂŚgaf kvik » 31. okt 2015, 15:01

Quad PA-ONE+ (ÂŁ1200)

Quad PA-One+.jpg
Quad PA-One+.jpg (389.75 KiB) Vist 57892 gange

A major league above its acclaimed predecessor and featuring re-engineered circuitry for tremendous frequency response and signal-to-noise ratio, the Quad PA-One+ tube headphone amplifier is all about sonic finesse – and the inimitable sound of the pairs of 6SL7 and 6SN7 tubes in the analog output stage. Stocked with balanced, RCA, coaxial, optical, and USB inputs to match with every listening source, it processes high-resolution audio up to 384kHz PCM and DSD256 by way of its reference-grade ESS SABRE 9018 K2M DAC. Two headphone outputs, including an XLR type for optimal performance, and USB 1.1 and 2.0 compliancy also come standard. Pleasingly warm, efficiently powerful, and wondrously simple, PA-One+ can connect right into your computer or laptop. And rest assured that everything about this sleek British-designed unit process signals with a focus on accuracy, cleanliness, and ultra-low-noise performance. All true to Quad tradition. 100% Music Direct Guaranteed. 

Specification
• Input Impedance: 50kΩ
• Output Power: 500mW @ 32Ω
• Output Impedance: 32Ω~300Ω
• Input Sensitivity: 300mV (500mW @ 32Ω)
• Frequency Response: 15Hz~30kHz (+0.5dB,-0.5dB)
• Distortion: 0.5% @ 1kHz
• Channel Balance: ±0.5dB
• S/N Ratio (ref. 500mW): 105dB (IHF-A)
• Stability: Measurements made with 230V supply
• Inputs: 1 x Balanced input, 1 x RCA input, 1 x Coaxial input, 1 x Optical input, 1 x USB input
• Outputs: 1 x Standard + 1 x Balanced headphone socket (high/low impedance), 1 x RCA output
• Digital Resolution: 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176kHz, 192kHz USB (PCM384kHz, DSD256)
• Power Supply Voltage: AC110~120V or AC220~230V - (50/60Hz)
• Valve Complement: 2×6SL7, 2×6SN7
• Size (WxDxH): 180 x 260 x 170 (mm)
• Net Weight: 6.5kg

https://www.quad-hifi.co.uk/pa-one-plus/
https://www.quad-hifi.co.uk/wp-content/ ... 1031-1.pdf
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Re: Rør, hvis du tør - ENIGMAcoustics

IndlĂŚgaf kvik » 2. nov 2015, 01:41

ENIGMAcoustics Athena A1 (ÂŁ1500)

ENIGMAcoustics Athena A1.jpg
ENIGMAcoustics Athena A1.jpg (275.56 KiB) Vist 74690 gange

Single-Ended Triode Vacuum Tube Hybrid Headphone Amplifier

The Athena A1 is an audiophile’s dream. From its three dimensional soundstage to its ability to faithfully articulate voices and instruments, to separate and fix them in space, the Athena A1 is an engaging and musical headphone amplifier.

Designed by a virtuoso engineering team, it is the first headphone amplifier from ENIGMAcoustics. It is also represents the culmination of an exhaustive design effort, hundreds of hours of listening, miles of response curves, and carefully selected parts.

Driven in pure Class-A mode, the premium grade Genalex Gold Lion ECC82/B749 tubes – chosen for their sonic purity and low noise – provides the foundation for Athena A1’s single-ended front end. A full wave rectifier is followed by LC smoothing filter with huge and powerful audio grade capacitor. The Class-A MOS/BJT hybrid output stage is extremely solid and robust (only the renowned BJT is considered) and it is a great complement to the single-ended triode front end. Together, they render music that flourishes with all the harmonic hues of live music.

The output stage exhibits extremely low output impedance, which ensures compatibility with low impedance headphones; and its high output voltage swing also allows Athena A1 to effortlessly drive high impedance headphones as well.

Elegantly presented, the Athena A1 features a strikingly attractive visual design, glass exterior, and state of the art construction. This innovative and bewitchingly musical vacuum tube headphone amplifier may well have re-written the book on SET (Single-Ended Triode) design.


Specifications
• Input Impedance: 10k Ohms
• Maximum Output Voltage: 20Vpp
• Total Power Consumption: 15W
• Compatible Headphone Impedance Range: 16–600 Ohms
• Circuit Configuration: Pure Class-A single-ended triode with hybrid output stage
• Tubes: Premium grade Genalex Gold Lion ECC82/B749
• THD: 0.1%
• Dimensions: 4.6″W x 7.3″H x 5.3″D (117mm x 185mm x 134mm)
• Net Weight: 7.7 lb (3.5 kg)
• Frequency Response: 5Hz –200kHz

http://enigmacoustics.com/shop/athena-a1/
https://www.dbhifi.co.uk/product/enigma ... athena-a1/
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Re: Rør, hvis du tør - Inspire

IndlĂŚgaf kvik » 2. nov 2015, 02:11

Dragon Inspire IHA-1 ($1700, full upgrade +450)

Dragon Inspire IHA-1.jpg
Dragon Inspire IHA-1.jpg (918.61 KiB) Vist 39687 gange

Moon Audio is proud to host and share the return of the legendary Dennis Had, to the world of tube headphone audio. This IHA-1 Dragon Version, stereo vacuum tube headphone amplifier maintains Dennis' philosophy reinforced over decades of listening, designing and building audio amplification.

As with Dennis' previous designs, his main concern is always the sonic purity of the output signal as perceived by the human ear. The IHA-1 Dragon is vacuum tube amplification in its purest form. It is a very clean short signal path. There are no capacitors, resistors or other passive components that make up the circuit. The signal enters the RCA jack, travels to the DACT stepped attenuator, then the 6SN7 tube, followed by the Output transformer and exits via the Headphone Jack or Preamp RCA. The Tubes become very important in this sort of circuit. The better the tube the better the end result. You can also very drastically change the tonality based on the tube you choose to use. Each tube has a very different sound signature or flavor.

The Dragon IHA-1 utilizes a100K dual DACT stepped attenuator. No matter where one has the volume set the balance is equal at all times in each channel. The Amp has Pro-Audio outputs on the front panel. You will notice the locking 1/4" stereo output. In addition, we have chosen to have the XLR 4 pin balanced output connector. The IHA-1 is a single-ended design but as you know it delivers the output in a balanced form from the output windings of the air-gapped output transformers. Then a final touch is a dual process powder coat finish in a clear coated copper.

The input driving signal is directly coupled to the grids of the 6SN7 dual triodes. This signal is amplified and sent to the headphones through a set of special hand wound air-gapped output transformers. Once again, direct coupling straight through to the headphones. Utilizing the 6SN7 dual triodes, the IHA-1 is extremely linear and offers full bandwidth from 9 Hz to 33Khz without the use of feedback.

The power supply is vacuum tube rectification with dual filter chokes to provide a low noise level along with a low impedance B+ power supply to the 6SN7 tubes. All and all, he had little concern for how loud one could blast their ears but an ongoing concentration of full bandwidth, linearity, and a realistic music presentation. Once again, for fear of being repetitive, the new Inspire IHA-1 Dragon version, is vacuum tube amplification in the purest form.

For tube rolling, the rectifier tubes should be of the direct heater type like the 5Y3, 5U4, 274B or NOS and factory fresh direct heated filament types. The indirect filament type like a 5AR4 is fine to use but to his ear, they do not even come close to a directly heated filament type.

The output tubes can be 6SN7 or 6BL7

Because of this purist approach, there is no gain stage or preamp circuit. Thus the DACT attenuator is the volume control and/or preamp circuit. Thus with some headphones that are not sensitive or have a higher impedance rating, this will mean a little less flexibility in a number of steps you have to control the volume. Do not get gain confused with output power. As the amp has plenty of power for most headphones. For people that are in the situation that they need more gain or volume control flexibility, we offer the Lundahl transformers. The Lundahl transformers which are input transformers and are placed between the RCA input jack and the DACT attenuator. They offer a 1 to 2.5 ratio. What they do is clean up the incoming signal, as all transformers can do, and increase the gain of the amp. So now whereas the Inspire might need the volume control set very high to get the desired volume it is now maybe half way. This will also boost low output signals from some Phono Preamps out there or when using a low output cartridge that gets a very little boost from the Phono Pre. In my opinion, no one makes a better transformer than Lundahl and this does not just increase the gain but adds a little more detail and definition to the sound.

The THD is close to ultimate vacuum tube perfection considering zero feedback. The second and all remaining harmonic contents at the1.125 watt output level into 32 ohms are over 65 dB down. Actually, the only harmonics visible at these levels are the second harmonics down 65 dB and the other harmonics are in the noise floor. This is actually an amazing output spectrum. One would consider this for the board of health!!!LOLThe power levels vary with the impedance of the output load. At the 32 ohm level up through 570ohms the power is in the 1.125watt to .750 watt level. Higher power at the lower end of the range. It will drive the 600-ohm cans you have as one of your choices.

We are also offering a Preamp output option. We never thought about using the amp as a Preamp until we released the new Dragon Inspire QMB-25 Mono Block Amplifiers as seen Here. Just to experiment we used it with the amps and were blown away. Thus we added input RCAs and a switch to mute the headphone amp we switching over to use as a Preamp. All are placed on the back of the unit.

Please keep in mind this is a direct coupled design without any coupling caps or output attenuation resistors in the signal path. Purity at its best.


Exclusive Dragon Features:
• Gorgeous Copper Metallic Powder Clear Coat finish
• Stepped DACT 100K attenuator running a pair of 6SN7's at over 1 watt of output power
• Output impedance of 4.4 ohms
• Transformer Pro Balanced output
• 2 analog RCA input selector positions, including a mute position
• 4pin XLR Headphone output
• 1/4" headphone output
• Preamp RCA Outputs with switch that mutes the headphone output
• 5Y3GT tube is standard
• Pair of 6SN7 come standard
• Pair of 6SN7 New Old Stock Tubes are available for an additional $100 (Brand Depends on availability)
• Direct coupling and transformer output are included as part of the standard configuration.
• 10 inches wide 8 inches deep, height varies based on tubes used.
• Weight is 15lbs
• 2 Year warranty on Amp, 30 day warranty on tubes

https://www.moon-audio.com/dragon-inspi ... e-amp.html
http://www.head-fi.org/t/738844/inspire ... dphone-amp
http://www.theabsolutesound.com/article ... amplifier/
Senest rettet af kvik 19. dec 2021, 21:30, rettet i alt 2 gange.
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Re: Rør, hvis du tør - Fostex

IndlĂŚgaf kvik » 4. nov 2015, 17:31

Fostex HP-V8 (€10000)

Fostex HP-V8.jpg
Fostex HP-V8.jpg (121.02 KiB) Vist 74690 gange

Model HP-V8 is the high-end stand alone vacuum tube amplifier dedicatedly designed for headphones using the legendary 300B for power tubes for the first time in the industry on headphone amplifier. The Signal to Noise ratio as good as 115dB achieved by the Fostex proprietary ST-PC technology as well as thorough noise reduction countermeasures reveals the authentic power of the tubes.


Features:
• The proprietary powering system “Stabilized Tube-controlled Power Circuits (ST-PC) using KT88 tubes significantly reduces residual noise to achieve S/N of 115dB.
• E88CC and 300B tubes are used as amplifier tubes and power tubes respectively.
• The power section consists of toroidal power transformers, heater transformers and a choke transformer made by Bando Electronics
• Output transformers are custom-made by Hashimoto Electric complying with balance and unbalanced outputs.
• The base plate made of aluminum weighing 2kg and the OFC (Oxygen Free Copper) plate with Teflon washers used for the power tube socket to minimize vibration noise.
• High anti-vibration rubber feet isolate the chassis from the floor.
• Pure audio grade electronic volume is used to eliminate the gang errors between L and R volumes.
• Custom-made electrolytic and film capacitors are adopted
• The audio grade AC Inlet is made by Furutech

Specifications:
• Impedance: Low 16 - 600 ohm | High 48 - 600 ohm
• Frequency Response: 20Hz - 50kHz (+-3dB)
• Power Output: 2 watt (15dBV)
• S/N Ratio: 115dB
• THD + N: <=0.5% (32ohm, 1V RMS)
• Input: 1 x unbalanced, RCA
• Output: 1 x balanced XLR, 1 x unbalanced, 1/4" phone
• Voltage: AC 230V 50Hz
• Dimensions: 245mm(H) x 430mm(W) x 416.5mm(D)
• Net Weight: approx. 31kgs

http://www.fostexinternational.com/docs ... P-V8.shtml

NOTE: The amp appears to be unavailable, but is still
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Re: Rør, hvis du tør - S&P Audio

IndlĂŚgaf kvik » 4. nov 2015, 18:23

S&P Audio Lagarto (€1850)

S&P Audio Lagarto.jpg
S&P Audio Lagarto.jpg (137.38 KiB) Vist 74690 gange

Others refer to their units as reference level, with us this is the standard! Forget everything you have listened to so far. The Lagarto sounds like tubes, and nothing else! Only the finest components were good enough for the Lagarto. The variant using Jantzen Superior caps has the most tubey sound. A stage-like sound with all the details.

The headphones amp is equipped with: 2 x Jan 6922 (or Jan 6922 Sylvania against surcharge) and a 6080 by Mullard. Capacitors from Clarity, Jantzen Superior and Nichicon Muse (others can be ordered). Vishay resistors, ceramic resistors, Kiwame, and a potentiometer with 20 individual resistors 1%. Transformer is housed externally.

 
Specifications:
• Input max: 0.8V
0.3 volt input equal to + -2.4 volts out at 50 Ohm
0.6 volt input equal to + -5 volts out at 50 Ohm
• Open circuit voltage: 6 volts at 0.3 volts input
• Coupling capacitors: Jantzen Superior
• Output capacitors: Nichicon Muse
• Resistors: Vishay CMF55
• Power Supply:
150 Volt regulated, with electronic coil.
2 x 6.3 Volt Heating AC-DC, with 15.000uF capacitors
• Inputs: Rhodium RCA jacks, optional iPhone connection (X4-Tech)
• Output: 6.3mm headphone and RCA
• THD + Noise: 0.75%

https://www.sup-audio.com/html/headamp.html
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Re: Rør, hvis du tør - Reußenzehn

IndlĂŚgaf kvik » 4. nov 2015, 20:03

Reußenzehn Harmonie III - MasterClass (€1480-2200)

Reußenzehn Harmonie III - MasterClass.jpg
Reußenzehn Harmonie III - MasterClass.jpg (173.82 KiB) Vist 74690 gange

The Reußenzehn MasterClass constitutes a development of more than 20 years of successful and popular tube headphone systems. The performance is nearly tripled with 2 x 3.5 W compared to the older models, thus the dynamic range and headroom has been increased substantially. The MasterClass allows you to connect all available dynamic headphones on the market with an impedance of 16-600 ohms.

The sound is warm and transparent, yet extremely spatial and powerfull across the whole frequency range. The amplifier has separate volume / voicing control for each channel (4 controllers). The voicing knob controls the harmonic overtone spectrum of the electron tubes (neutral position at 12 clock). Increased second harmonic overtone allows for perceived increased brilliance, airiness and spaciousness

Dimensions are 20 x 12 x 10 cm. MasterClass is available in chrome (€1480) or gold plated (€2200). XLR tonnectors are now standard. The power supply is housed externally for reasons of quality.

Optional: MasterClass Duo Comfort (€190). The Duo Comfort extension is a double-connection box for 1 or 2 headphones to the Reußenzehn MasterClass headphone amplifier. A high-quality cable is made-up for the customer in the desired length. The MasterClass headphone amplifier can thus remain in the HiFi rack, and the extension box can then be placed near the actual listening position. The technique allows listening pleasure without volume or quality loss up to 6m (9m with headphones) cable length.


https://www.reussenzehn.de/de/hifi/roeh ... rclass.php
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Re: Rør, hvis du tør -

IndlĂŚgaf kvik » 4. nov 2015, 20:54

Reserved..
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Re: Rør, hvis du tør - Audeze

IndlĂŚgaf kvik » 6. nov 2015, 02:10

Audeze The King MKII ($4500)

Audeze The King.jpg
Audeze The King.jpg (44.33 KiB) Vist 74690 gange

THE KING MKII Class-A Hybrid Tube/Mosfet Headphone Amplifier

The King was designed exclusively for Audeze by legendary circuit builder Bascom King. It’s a two-stage hybrid design featuring a pair of twin-triode E88CCs input tubes, a differential P-MOSFET driver, and MOSFET output devices. The King uses NPN MOSFETs that allow perfect device matching that yields faster response times. The amplifier exhibits low impedance, low distortion, and wide frequency response along with its 6W of music power, characteristics that create a breathtakingly spacious and emotional listening experience.

The King’s anodized casework is beautifully done and solid as a vault. The side panels are fully 1/2" thick, the top and bottom 1/4" thick, featuring a 5/8" thick clear-coated front panel. All active components are "faraday cage" shielded along with the AC input to reduce RFI. The front-panel meters are engineered to reflect actual SPLs and power levels when used with the LCD-4.

Bascom King’s exclusive design for Audeze includes such perfectionist elements as left and right channels on separate PCBs, each with its own voltage regulators. Each PCB features a protective shield of perforated, powder-coated magnetic material. The toroidal transformer is massively oversized, molded in epoxy and shielded to further improve signal-to-noise ratio. A DC servo circuit between input and output stages keeps DC offset as close to zero as possible. And a symmetrical regulated power supply delivers ±16V DC to the output devices and there are no capacitors in the signal path resulting in virtually flat frequency response.


Features
• Dual ¼” unbalanced jacks
• True SPL power meters calibrated for specific headphones
• Clipping and overload indicators
• RCA signal inputs
• XLR inputs (converted internally to unbalanced)
• Filtered and fused AC power module
• 110/220V AC voltage selector
• Machined aluminum chasis
• Shock absorbing feet

Tube Complement
• Stock: E88CC, matched pair
• Compatible: 6DJ8 and variants including 6922, 7308, 7DJ8, ECC88, 6H23

Specifications
• Output Power: 6W into 20 ohms load with less than 0.1% THD
• Frequency Response: 10Hz-100KHz, -0.1dB
• Total Harmonic Distortion: Less than 0.1%, 20Hz-20KHz, full output
• SNR: -120dB, A weighted
• Output impedance: 0.3 ohms
• Input impedance: 10k ohms
• Power requirement: 110-120V AC, 50/60Hz; 220-240V AC, 50/60Hz, externally switchable
• Power consumption: 30W maximum
• Dimensions: 300 mm x 110 mm x 325 mm
• Weight: 9 kg

https://www.audeze.com/collections/ampl ... -king-mkii


NOTE: Now a legacy product, but seemingly not fully retired/discontinued. Scarcely available, if at all.
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Re: Rør, hvis du tør - McIntosh Labs

IndlĂŚgaf kvik » 6. nov 2015, 19:57

McIntosh MHA200 ($2500)

McIntosh MHA200.jpg
McIntosh MHA200.jpg (111.96 KiB) Vist 38365 gange

The MHA200 Vacuum Tube Headphone Amplifier is designed for discerning headphone enthusiasts who demand the most from their headphones. Its versatile set of connectivity options, including balanced inputs and outputs, allows for nearly all headphone types to be connected to enjoy an extraordinary personal listening experience.

A pair of 12AT7 and 12BH7A dual triode vacuum tubes power the compact MHA200. The 12AT7 vacuum tubes amplify the incoming audio signal while the 12BH7A tubes provide the power to drive the output to your headphones with low distortion. The MHA200 uses a pair of our Unity Coupled Circuit output transformers to deliver pristine audio to your ears. Our Unity Coupled Circuit is the same technology McIntosh was founded on in 1949 and is still used in our vaunted full-size home audio vacuum tube amplifiers such as the timeless MC275 and the more recent MC1502. Indeed, the MHA200 shares many physical design traits with the aforementioned vacuum tube amplifiers.

A wide assortment of connectivity options come on the MHA200. For attaching your headphones, there are 3 options: a pair of 3-pin balanced XLR connectors for dedicated Left and Right balanced output; a 4-pin balanced XLR connector for balanced stereo output; and a 1/4" stereo headphone jack.

For connecting the MHA200 to your home music system's source components, it has 1 set each of both balanced and unbalanced inputs. Thanks to the MHA200's small size of just 6-1/8" (15.6cm) wide x 9-1/8" (23.2cm) deep and its balanced inputs, it can be placed close to your listening position for ease use, with long balanced audio cables connecting it to your audio system without fear of signal loss.

The MHA200 takes advantage of unique McIntosh technologies to create the best possible personal listening experience. The Unity Coupled Circuit transformers have been adapted to produce 4 headphone impedance ranges of 32 – 100, 100 – 250, 250 – 600, and 600 – 1,000 Ohms at 500mW so that virtually every headphone can receive legendary McIntosh sound quality and performance.

We custom designed and manufactured the output transformers to match the tube amplifier section to the headphone output section in order to ensure maximum power transfer for various headphone loads. Instead of having to adapt to the impedance of the headphones with voltage gain in the input stage, the Unity Coupled Circuit output transformers' secondary windings ensure the full power of the MHA200 is available regardless of the impedance of your headphones. A custom, high-performance, and highly efficient toroidal power transformer with low mechanical hum and a low magnetic field, which helps reduce electrical noise, provides clean power to the amplifier.

You can select the best impedance range for your headphones via the LOAD knob. The VOLUME knob allows the MHA200 to be connected directly to music sources that only have a fixed volume output without needing a preamplifier for volume control. Conversely, if you're using a component with variable volume output, then the VOLUME knob should be set to the center Unity Gain point and the volume controlled by the variable output component.

The MHA200 features a custom formed stainless steel chassis with a polished mirror finish that will accentuate the glow of the vacuum tubes, making it a statement piece to display in your home and to use with pride. A vintage die cast aluminum McIntosh name badge adorns the side of the MHA200. A Power Control input and output allows the MHA200 to turn on and off with other connected McIntosh components, such as preamplifiers, CD players, turntables, or media steamers. A protective vacuum tube cover is included. Contact your local dealer to learn more.


Specifications
• Tube complement: 12AT7 x2, 12BH7A x2
• Output Type: Unity Coupled Output Transformer
• Headphone Power Output: 500mW
• Headphone Output Impedance: 32-100Ω, 100-250Ω, 250-600Ω, 600-1,000Ω
• Total Harmonic Distortion: 0.5%
• Frequency Response: +0, -0.5dB from 20Hz to 20,000Hz
• Maximum Input Signal (Balanced/Unbalanced): 16V/8V
• Input Impedance (Balanced/Unbalanced): 20K/10K
• Intermodulation Distortion: 0.04% Typical, 0.4% Maximum
• Sensitivity (Balanced/Unbalanced): 2.0/1.0 Vrms
• Damping Factor: >150
• Voltage Gain: 12dB@32Ω, 17dB@10Ω, 21dB@25Ω, 25dB@60=Ω
• Rated Power Band: 20Hz to 20kHz
• Dynamic Headroom: 1.5dB
Signal To Noise Ratio: 94dB
• Standby Power Requirement: <0.5 Watts
• Power Requirement: 120V 50/60Hz, 1.5A
• Dimensions (WHD): 6-1/8" (15.6cm) x 5-3/4" (14.6cm) x 9-1/8" (23.2cm)
• Weight: 10.5 lbs (4.8 kg)
• Shipping Weight: 12 lbs (5.5 kg

https://www.mcintoshlabs.com/products/n ... cts/MHA200



McIntosh C22 Mk V ($6000)

McIntosh C22 Mk V.jpg
McIntosh C22 Mk V.jpg (362.45 KiB) Vist 40030 gange

This newest version of our C22 Vacuum Tube Preamplifier – the Mk V – is the direct replacement to our highly regarded C70 Limited Edition 70th Anniversary Vacuum Tube Preamplifier, which commemorated our 70th Anniversary that took place in 2019. The new C22 Mk V is the latest McIntosh vacuum tube preamplifier to carry the cherished C22 model number. It has all the performance of the acclaimed C70 but with the hallowed C22 moniker and its signature glass and aluminum front panel design.

The C22 Mk V uses one 12AT7 and five 12AX7A vacuum tubes which can be seen through a glass panel located on the top of the preamp. Knobs and rocker switches operate all control functions while modern LED lights indicate input selection and volume level. The C22 Mk V has two balanced inputs, three unbalanced inputs, one Moving Coil and one Moving Magnet phono inputs, for a total of seven inputs. There are two pairs each of balanced and unbalanced output connections; the two outputs allow sending signals to two separate power amplifiers.

Bypassable bass and treble tone controls are located on the front panel and can be adjusted in 2dB increments via rotary knobs. Impedance and capacitance for the phono inputs can also be adjusted via separate rotary knobs. In addition to setting the listening level, the volume knob can also be used to adjust the relative volume balance between the left and right audio channels. The ¼” headphone jack is powered by our High Drive headphone amplifier and features our Headphone Crossfeed Director (HXD®) technology. HXD improves the sound localization for headphone listening by restoring the directionality component of the sound stage that's normally only heard from loudspeakers.

Our Power Control technology is included with four ports that can automatically turn other connected McIntosh components such as amplifiers, CD players or turntables, on and off. Data ports are also present and can control basic functions of connected McIntosh source components via the included remote control.

The C22 Mk V sits atop a stunning polished stainless steel chassis and features the timeless McIntosh illuminated logo, control knobs, and aluminum end caps. With its retro black glass and aluminum front panel design, the C22 Mk V will fit right in with McIntosh home audio systems of any era – from the 1950s to current day. Contact your local dealer to learn more.



ELECTRONIC SPECIFICATIONS
• Number of Channels: 2
• Total Harmonic Distortion: 0.08%
• Frequency Response: +0, -0.5dB from 20Hz to 20kHz / +0, -3dB from 15Hz to 100kHz
• Maximum Volts Out (Balanced / Unbalanced): 16V RMS / 8V RMS
• Sensitivity High Level (Balanced / Unbalanced): 900mV / 450mV
• Sensitivity Phono (Moving Coil): 0.45mV
• Sensitivity Phono (Moving Magnet): 4.5mV
• Signal To Noise Ratio (High Level): 100dB
• Signal To Noise Ratio (Moving Coil): 75dB
• Signal To Noise Ratio (Moving Magnet): 75dB
• Voltage Gain (High Level): 15dB
• Voltage Gain (Moving Coil): 60dB
• Voltage Gain (Moving Magnet): 40dB
• Input Impedance (Balanced / Unbalanced): 44K ohm, 22K ohm

CONNECTIVITY
• Balanced Input: 2
• Unbalanced Input: 3
• Phono Input Moving Coil: 1 (adjustable)
• Phono Input Moving Magnet: 1 (adjustable)
• Upgradeable Digital Audio Module: No
• Digital Coaxial Input: 0
• Digital Optical Input: 0
• Digital MCT (DIN) Input: 0
• Digital USB Input: 0
• HDMI (ARC) Input: 0
• Digital AES/EBU Input: 0
• Balanced Fixed Output: 0
• Balanced Variable Output: 2
• Unbalanced Fixed Output: 0
• Unbalanced Variable Output: 2
• Headphone Output: 1/4" High Drive with Headphone Crossfeed Director (HXD®)
• Input Level Match: No
• Home Theater PassThru: No
• Unbalanced Analog Connector Type: Premium gold-plated solid brass
• Service Port: 0

CONTROL
• Tone Controls: Bass and Treble
• Tone Bypass and Input Assign: Tone Bypass: Yes / Input Assign: No
• RS232 Control Input: No
• Power Control Output: 2 Main, 2 Switched
• Rear Panel Data Port: 5
• Rear Panel IR Sensor Input: Yes

GENERAL SPECIFICATIONS
• Multi-Chassis or Single: Single, two layer
• Output Meters: No
• Vacuum Tube or Solid State: Vacuum Tube: (5) 12AX7A and (1) 12AT7
• Power Consumption (On): 50 Watts

WEIGHTS & DIMENSIONS
• Dimensions (W x H x D): 17.5" (44.45cm) x 6" (15.24cm) x 18" (45.72cm)

• Weight: 25 lbs (11.3kg)

• Shipping Weight: 41.4 lbs (18.8kg)


https://www.mcintoshlabs.com/products/p ... s/C22-Mk-V
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Re: Rør, hvis du tør - Corsunus

IndlĂŚgaf kvik » 7. nov 2015, 23:14

Corsonus Kordachi Electrostatic Amplifier ($3600)

Corsonus Kordachi.jpg
Corsonus Kordachi.jpg (3.66 MiB) Vist 39626 gange

Handcrafted amps to achieve your ideal sound

Corsonus aims to bring amps into the 21st century, showcasing unmatched fidelity in a sleek, modern take. 100% designed and manufactured in-house in the USA, amp enclosures are milled out of a single block of aerospace-grade aluminum billet and hand-finished to perfection.


Features
• Fully DC coupled tube and solid state hybrid amp
• Highest performance to footprint ratio of any electrostatic headphone amplifier on the market
• Providing a more realistic and fidelity to the sound with a hint of warmth and ability to tweak the sound with tubes, showcasing a powerful bass that will have you thinking twice about the common trope of electrostatics
• All power supplies (including heater supplies) are fully regulated with ultra low noise devices to achieve optimal performance with optimal line AC

Specifications
• Gain: 58/60 dB
• Frequency response 0,-3dB: 20Hz-110kHz
• Distortion at 1kHz, 200Vpp amplitude: -106dB 2nd harmonic, -138dB 3rd harmonic
• Amplifier dimensions (HWD): 2.5 x 9.45 x 6.7 inches
• Power supply dimensions (HWD): 2.5 x 9.45 x 6.7 inches
• Stacked height: 5.7 inches
• Weight: 16 lb

Options
• Chassis: Standard or extra height
• Tubes: Tung-Sol, Psvane or ShuGuang
• Gain: 58dB or 60dB

https://thecorsonus.com/product/kodachi/
https://www.head-fi.org/threads/corsonu ... er.949057/:
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