The 2 small tubes on the front are the 6DE7/6CY7/6DR7 driver/power tubes, and the large one on the back is a rectifier tube.
The front panel (left to right) consists of a 1/4" (6.3mm) headphone jack, a volume control, and a power switch button.
Die-cast aluminum body
Lower angle view
Side
Back panel, left to right, has AC110 and 220/240V voltage selector, a AC inlet with fuse box, a headphone impedance selection toggle switch, and a pair of RCA input.
Top view. Under the aluminum housing, it sits a high performance power supply.
Tubes compartment
WA6
WA6
WA6
WA6
Sophia Princess Mesh Plate 274B on WA6. Sold individually or for upgrade.

All can say is wow! As you know I am a conductor of classical music and can honestly say that it is like hearing cd's for the first time - Jeffrey Milarsky, Conductor of the Columbia University Orchestra.

I just wanted to let you know that I received my WA6 yesterday in good order. Though I know it is not broken in yet and it will only get better; after a couple hours of warm-up time it sounds totally awesome. So good in fact that I listened to many favorite recordings long into the night. And the fit and finish is first rate at any price, for the money I am VERY impressed to say the least. - Email noted by RD.

Price: $699  $629

* 1 pair of 6DE7 (or equivalent) and 1 tube rectifier are included.

* AC Power cord and RCA interconnect cables are not included.

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

Owner's Manual(PDF) pdf-icon

    Technical Specifications :
  • Headphones impedance : 8-600 Ohms
  • Input impedance: 100 Kilo-Ohms
  • Frequency response: 20 Hz - 30 KHz, -3dB
  • Signal/Noise: 93 dB
  • THD: <= 0.3%
  • Voltage: AC 110/220 V, 50/60 Hz
  • External dimension: 6"(H), 5½(W), 13"(D)
  • Weight: 13.5 lbs
    Standard Features:
  • Point-to-Point wiring
  • One 5AR4 [PDF] rectifier tube. Direct substitute: 5U4G
  • Two 6DE7 [PDF] drive/power tubes
  • Pseudo-dual power supply
  • All tubes. No semi-conductors in the entire circuitry
  • High or low headphone impedance switch
  • One 1/4" (6.3mm) headphone jack
  • 80 watts specially made toroidal power transformer.
  • Full aluminum die-cast chassis, anodized finish
  • Whole aluminum volume knob and power switch button
  • Gold-plate RCA
  • Silver-plated hook-up wires in Telfon jacket
    Brief Introduction to 6DE7:
  • 6DE7 is a dual triode tube, consisting of one drive triode and one power triode. Its performance is similar to a combination of a 6SN7 and a 2A3.

Rectifier tube replacement:
Sophia Princess Mesh Plate 274B rectifier
$160 (1 pc) with 30-day warranty
To impact WA6's sound quality or for your super backup. Buy and ship independently.

Sophia Electric™ 274B tube is a premium rectifier tube for a 5U4/5R4/5AR4 direct replacement with 3X longer plate structure, thus it has a deeper, wider sound stage and even smoothier sound than Mullard 5AR4.

Drive/Power tube option 1:
1 matched pair of 6GL7/6EM7 plus one pair of 6GL7->6DE7 Teflon tube adapters.
$150 (2 tubes + 2 adapters)

The 6GL7/6EM7 is the ultimate driver/power tube for the WA6. It has great extension and excellent clarity on all frequency range. You will hear each note with breathing air around it. The sound is smooth and well balanced.

This tube is compatible to the WA6. You will need to use a tube adapter becaue the pin layout is different than the 6DE7/6EW7. It is a twin triode tube with high amplification factor. It produces higher output.

Click to see details 2 3

NOS tube. Buy and ship independently.

Drive/Power tube option 2:
1 matched pair of 7N7 plus one pair of Teflon tube adapters
$105 (2 tubes + 2 adapters)

The 7N7 is a substitute tube to a 6DE7. It is usable on the WA6 with a 9-pin to Lokctal tube adapter. We highly recommended it as it is sonically superior to any direct substitute tubes of the WA6. Note that the 7N7 is not compatible with WA6-SE.

Click to see details 2 3 4

NOS tube. Buy and ship independently.

Drive/Power tube option 3:
1 matched pair of 6SN7GT plus one pair of Teflon tube adapters
$160 (2 pcs)

The 6SN7 is well known driver tube which is also compatible to the WA6 (not compatible to the WA6-SE). It is usable on the WA6 with a 9-pin to 8-pin tube adapter.

Click to see details 2 3

NOS tube. Buy and ship independently.

Drive/Power tube option 4:
1 matched pair of 6DR7
$40 (2 pcs)

NOS tube. Buy and ship independently.