Woo Audio WA2 Headphone and Pre Amplifier
本帖最後由 mac1 於 2013-10-20 15:29 編輯Woo Audio - WA2 Headphone and 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.
Brand New purchased at DMA
http://www.ect.com.hk/product_details.php?id=984
Spec:
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 110/220V, 50/60 Hz
External dimension: 5½"(H), 13"(W), 9"(D)
Weight: 17 lbs
Point-to-Point wiring
Two 6AS7 / 6080 power tubes
Two 6922 / 6DJ8 drive tubes
Two EZ80 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
Includes a Hifi Grade Fuse!
Conditions : 100% working conditions but 有輕微花
Asking $7000 (includes Stock Tubes)
Some Extra Tubes are also available for combined purchase (at very special price if interested): TELEFUNKEN & RTF EZ80 / Sylvania GB6922 / Mullard E88cc/ RCA 6AS7G / Tung-Sol 5998 不議價,送one pair of Tung sol 5998 which is best combo for this amp!{:1_259:}
Info for the reference
http://www.ebay.com/itm/Tung-Sol-5998-flat-plate-vacuum-tubes-/271080515111?pt=Vintage_Electronics_R2&hash=item3f1da86627
http://www.head-fi.org/t/668113/woo-audio-wa2-silver-headphone-amp-preamp-extra-tubes-tung-sol-5998-amperex-bugle-boys-orange-globes
HOLD!
thx Sold. Thx
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