Woo Audio WA2 Tube Headphone Pre Amplifier

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Woo Audio WA2 Tube Headphone Pre Amplifier

Singled-ended Triode Class-A, All Tube Drive, OTL.

WA2 is a high performance headphone amplifier for even the most power hungry headphones.
High gain, ultra low noise preamp, utilizing driver and power tubes.

Conditions : Excellent but have some minor scratches from daily use. Bought it as New at DMA in June 2012. The set of stock tubes is almost new since I have 2 more sets of upgrade tube.
Including : Comes with original package, stock tubes.

Technical Specifications:
Headphones impedance : 25-600 Ohms
Input impedance: 100 Kilo-Ohms
Frequency response: 8 Hz - 100 KHz -3dB
Signal/Noise: 95 dB
THD: <= 0.08%
Pre-amp Gain: 10 dB
Voltage: Dual AC operation 220V, 50/60 Hz
External dimension: 5½"(H), 13"(W), 9"(D)
Weight: 17 lbs
Standard Features:
Point-to-Point wiring
Two 6AS7 / 6080 (westinghouse Stock tube) power tubes
Two 6922 (JJ Stock tube )/ 6DJ8 drive tubes
Two EZ80 (JJ Stock tube ) rectification tubes (6X4 is no longer used)
Pseudo-dual power supply
One pair of gold-plate pre-amp RCA outputs
Four pairs of selectable gold-plate RCA inputs
1/4" (6.3mm) stereo headphone jack
Full aluminum die-cast chassis, anodized finish
Whole aluminum volume knobs and power switch button
120 watts toroidal power transformer
Individual filter choke and rectifier per channel
Alps potentiometer and power switch
Silver-plated hook-up wires in Telfon jacket

Please be noted there is a minor scratch on it and it was there as it came with when I bought it. It is almost not noticeable. But would like to point it out for all the Chings who are interested.

Reviews : http://www.head-fi.org/search.ph ... p;currenttab=Review

Asking for $8,390 價可小議
Please feel free to Pm me if you have any queries.

I also have some upgrade tubes are available (as bellow) as well. (They can be sold together with the set of stock tubes (or separate)

Matched Pair of TELEFUNKEN & RTF EZ80 / Sylvania GB6922 / Mullard E88cc/ RCA 6AS7G / Tung-Sol 5998

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Further to all ching about the price including all upgraded tubes,

I've just figured out the price as below,

Complete package included all upgrade tubes is $12,900 (價可小議)

Thank you!

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Picture of all tubes added.

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Just revised......

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Push......

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Push........

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pocarisky

Still available ?

xiongski

Woo ! 正嘢！我排隊standby !

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xiongski 發表於 2013-3-31 09:50
Woo ! 正嘢！我排隊standby !

Standby 乜？