6 WA6-SE Headphone Amplifier, Single-ended Triode Class-A, All Tube Drive, Output Transformer Coupled
Price: $1190

* Power supply umbilical cord is included.

* One matched pair of 6EW7 and one 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: 15 Hz - 40 KHz, -3dB
  • Power output > 1 watt
  • Signal/Noise: 93 dB
  • THD: <= 0.3%
  • Voltage: AC 110/220 V, 50/60 Hz
  • External dimension (each unit): 6"(H), 5½(W), 13"(D)
  • Weight: AMP 12 lbs, PSU 10 lbs
    Standard Features:
  • Point-to-Point wiring
  • One 5AR4 [PDF] rectifier tube. Direct substitute: 5U4G
  • Two 6DE7 / 6EW7 [PDF] drive/power tubes
  • Pseudo-dual power supply
  • All tubes. No semi-conductors in the entire circuitry
  • High and low impedance headphones outputs
  • 1/4" (6.3mm) headphone jack
  • 2 RCA inputs with a input source switch
  • Individual filter choke per channel
  • 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
  • Alps potentiometer and power switch
  • Silver-plated hook-up wires in Telfon jacket
    Brief Introduction to 6DE7/6EW7:
  • 6DE7/6EW7 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 upgrade:
Sophia Princess Mesh Plate 274B rectifier
$160 (1 pc) with 30 days warranty
To impact WA6 SE'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-SE. 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-SE. NOTE: Serial number begins with 0410 is not compatible unless a modification is done. 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 6FD7
$52 (2 pcs)

Clear top, big bottle. 6FD7 is a direct replacement for a 6DE7. Buy and ship independently.

Drive/Power tube option 3:
1 matched pair 6EW7
$48 (2 pcs)

Clear top, big bottle. Buy and ship independently. 6EW7 is a direct replacement for a 6DE7.

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

NOS tube. Buy and ship independently.