WA2 uses 2 6080/6AS7 power tubes (large 2 front tubes), 2 6922/6DJ8 drive tubes (small 2 front tubes), and 2 EZ80/6V8 rectifier tubes (behind the 6080's).
The front planel contains a 1/4" (6.3mm) headphone jack, a 4-position input selector, a volume control, and power switch button.
WA2 right side
The feet use large silicone rubber capped inside an aluminum enclosure that prevent slippery and obsorb vibration.
Die-cast aluminum body in anodized finish.
Back panel functionalities: AC inlet with fuse box, AC110 and 220/240V voltage selector, pre amp output, 4 pairs of RCA audio input connectors.
Top view. The large enclosure on center houses a power supply transformer; a inductor places on both sides.
WA2
WA2
WA2
WA2

I heard this amp at the National meet and it is a winner. It rocked with RS-1s amd makes a great preamp as well. - By jp from head-fi.org

Price: $1190  $1071

* Power cord and interconnection cables are not included.

* 1 pair of 6AS7/6080, 1 pair of 6922/6DJ8, and 1 pair of EZ80/6V4 are included.

* Shopping cart applies to the U.S. buyers only. International buyers please contact us for shipping cost and payment instruction.

Owner's Manual(PDF) pdf-icon

    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 110/220V, 50/60 Hz
  • External dimension: 5½"(H), 13"(W), 9"(D)
  • Weight: 17 lbs
    Standard Features:
  • Point-to-Point wiring
  • Two 6AS7 / 6080 [PDF] power tubes
  • Two 6922 / 6DJ8 [PDF] drive tubes
  • Two EZ80 [PDF] 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

Power tubes upgrade:
Tung Sol 7236 NOS
Hand-pick matched pair
$160 (2 pcs)

One of the best power tubes available for this amp. The 7236 vastly improves dynamic and soundstage. It has a very good speed, warm mid range, tight and deep bass. Buy and ship separately.

Driver tubes upgrade 2:
Hand-pick matched pair
Sylvania 7308 JAN
$260 (2 pcs)

Ultra low noise and low microphonic, deep, clean bass, excellent extension on tremble, full body mid range. Buy and ship separately.

Rectifier upgrade:
Hand-pick matched pair
Westinghouse 6V4 NOS matched pair
$140 (2 pcs)

Warm, rich texture. Silky smooth tremble. Deep, clean bass. Low noise. Buy and ship separately.