Rør, hvis du tør



Re: Rør, hvis du tør - Lector Strumenti Audio

Indlægaf kvik » 23. sep 2017, 23:23

Lector ZUM-H (€?)

Lector ZUM-H.jpg
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All new design for this outstanding hybrid headphone amplifier. Tube triode input and lateral mosfet output buffer. Tube circuit is built around our exclusive optical bias cathode control. Four independent power supply sections for ultra low noise. All circuits from input to output are in pure class A. High quality components selection and large value capacitance reservoir for mosfet output. The Lector ZUM-H can drive any type of headphones from low to high impedance. User selectable high or low power headphone output. Remote control handset for volume control.

Specifications
• Driver Tube: 12BH7A (optionally ECC802S)
• Inputs: Line In (x5)
• Outputs: Tape Out (x2), Pre Out, Headphone Jack 6.3mm
• Chassis: Cherry wood or black plexi panels. Spiked feet (x3) are optional
• AC Mains: 240 110 100 Vac 50/60 Hz 70 V/A
• Dimensions: 400 (L) / 440 (L with panels) x 300 (D) x 85 (H) mm
• Weight: 7 Kg net, gross 8 Kg

http://www.lector-audio.com
Senest rettet af kvik 1. dec 2018, 15:36, rettet i alt 7 gange.
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Re: Rør, hvis du tør - Vacuum Tube Audio

Indlægaf kvik » 14. apr 2018, 21:43

Vacuum Tube Audio HA12 ($900)

Vacuum Tube Audio HA12.jpg
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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 $199; Complete kit of all parts to build is $699; Assembled, tested, ready to use HA12 headphone amp is $899.

http://tubes4hifi.com/HA12.htm



Vacuum Tube Audio HA-14 ($1000)

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. Price is $999 with tubes & assembled, $799 kit with tubes.

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 - Waiting Audio

Indlægaf kvik » 12. sep 2018, 13:01

Waiting Audio Model 101 ($2200)

Waiting Audio Model 101.jpg
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Waiting Audio (Waiting for Classics).. Here we are not waiting for the hi-end sound that most modern people strive for. For legends like Western Electric and Klangfilm we can't turn back the clock to the 1930s, but the birth of Model 101 is the best opportunity for headphone fans to do so. A full low-end, with clear midrange, and gorgeuos highs, plus a little charming background noise, properly restore the Western Electric sound of 80 years ago. The anodized chassis, the panel printing fonts, the volume knob, the push-buttons, they all have been carefully pondered by Mr. Que to match the Western Electric style. Tubes and transformers are all of Western Electric origin, and only tubes are used for both rectifying and amplification. In the view of the designer, Mr. Que, Western Electric transformers have a rare high and low impedance output, which match the impedance characteristics of modern headphones well. The secret lies in the transformer iron core winding method, the enameled wire itself, and then the adjustment. Coupled with decades of aging, the uniqueness of Western Electric transformers is created. In Model 101 the use of six 403B pentode tubes for rectifier and amplification, with point-to-point wiring, replaces the traditional triode design used in radio broadcast and theatre systems back then. Driving both low and high impedance headphones well, Model 101 allows the Western Electric sound to shine through.

Specifications
• Tubes: Western Electric 403B/6AK5 x6, also available GE tubes
• Harmonic distortion (THD): 1%
• Inputs: RCA, USB
• Outputs: RCA, 1/4" Jack
• DAC: TI PCM2704
• Dimensions (WHD): 375 x 200 x 230 mm

https://goods.ruten.com.tw/item/show?21635432600372
http://class.ruten.com.tw/user/index00. ... rectheater
https://www.audionet.com.tw/thread-8876-1-1.html
https://www.ebay.com/sch/abula101f3pf/m ... pg=&_from=
AKG K240DF | K400 | K500 \\ VE Zen 2.0 | Myst Nail 2 | Spiral Ear 3-way Ref \\ Zigis Trīsstūris \\ Tento PortaDAC \\ Allo DigiOne
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Re: Rør, hvis du tør

Indlægaf kvik » 26. sep 2018, 20:58

Opdateringen er nu færdig. Priser, specifikationer, links mv er opdateret for alle indlæg/producenter. Lande- og prisoversigten (pdf-fil) i trådens første indlæg er også opdateret.

Nye mærker: Air Tight, Aries Cerat, Art Audio Lab, Audio by Van Alstine, Audio-Classic, ECP Audio, Eufonika, Fezz Audio, Lector Strumenti Audio, OCTAVE Audio, Pier Audio, Riviera Audio Laboratories, Rogers High Fidelity, Röhrenschmiede, Sinus Audio, Thöress, Tor Audo, Tsakiridis Devices, Vacuum Tube Audio, Venture Electronics, Waiting Audio, ZMF

Nye modeller: Adlab, ALO, Ampsandsound, Auris, Cary, Dared, DestinY, Elekit, Elemental, Feliks, Hifiman, McChanson, Mapletree, Monoprice, Opera, Phatlab, Space-Tech, Synthesis, Toolshed, Trafomatic, Viva

Nye versioner: Audeze, Aune, Elemental, Gabri’s.
Senest rettet af kvik 4. dec 2018, 00:29, rettet i alt 22 gange.
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Re: Rør, hvis du tør

Indlægaf kvik » 29. nov 2018, 13:22

De opmærksomme vil have opdaget, at der er kommet et par håndfulde nye producenter til, siden opdateringen officielt blev afsluttet først i oktober. Frem til næste store opdatering kommer jeg bare til at 'snige' nye emner ind, uden at gøre opmærksom på det. Dem der er interesseret kan løbende tjekke indlægget ovenfor, under 'Nye mærker'.
AKG K240DF | K400 | K500 \\ VE Zen 2.0 | Myst Nail 2 | Spiral Ear 3-way Ref \\ Zigis Trīsstūris \\ Tento PortaDAC \\ Allo DigiOne
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