6 WA6-SE (2nd Gen) Headphone Amplifier, Single-ended Triode Class-A, All Tube Drive, Output Transformer Coupled
Price: $1071

* Power supply umbilical cord is included.

* One matched pair of 13DE7 and one rectifier are included.

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

* Shipping charge applied to CONUS only. International shipping charge will be invoiced when your order is in our system.

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 13DE7 / 13DE7 [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

Rectifier tubes upgrade 1:
Takatsuki TA-274B single
$1045 (1 pc) with 1-year warranty

Takatsuki 274B offer ultimate performance to any current production 274B's. Users have claimed that it exceeds the quality to NOS Western Electric 274B.

The TA-274B sold in an individual package Click to see details.

Rectifier tubes upgrade 2:
KR 274B High-Resolution, single
$647 (1 pc) with 6-month warranty

The KR Audio 274B HP rectifier tube is a perfect compliment to any tube amplifier’s high voltage power supply. Solidly made and very low in microphonics make this a no brainer to properly power the finest tube amplification. This latest high performance design better controls both electrical and vibrational resonances that blur imaging for greater clarity to the source.

Image of a KR 274B HR rectifier

Rectifier tube upgrade 3:
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 matched pair of 13EM7 plus one pair of 13EM7->13DE7 Teflon tube adapters.
$150 (2 tubes + 2 adapters). NOTE: 13EM7 can NOT be used on the 1st gen which has a '6DE7' label printed next to the tube sockets.

The 13EM7 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 13DE7. 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.