• WA22

'Balanced design from input to output, Class-A, All Tube Drive, Output Transformer Coupled'


Realistic, incredible detailed, and tonally balanced sound


Reviews :


http://www.theabsolutesound.com/articles/woo-audio-wa-22-headphone-amplifier-playback-43/

http://www.positive-feedback.com/Issue54/woo.htm

http://www.6moons.com/audioreviews/woo2/1.html


Features :


- Point-to-Point wiring


- True balanced topology


- All tubes. No semi-conductors in the entire circuitry


- One 5AR4 [PDF] rectifier tube. Direct substitute: 5U4G


- Two 6SN7 [PDF] drive tubes


- Two 6AS7 / 6080 [PDF] power tubes


- Smooth balanced attenuator


- One balanced XLR input


- One single-ended RCA input


- Two 3-pin balanced headphone output (left and right ch)


- One 4-pin balanced headphone output


- One single-ended headphone output


- High and low impedance switch


Specifications :


- Headphones impedance : 8—600 Ohms


- Input impedance: 100 Kilo-Ohms


- Frequency response: 8 Hz — 50 kHz, -3dB


- Output: 1500mw @32 ohms, 700mw @600 ohms


- Signal/Noise: 92 dB


- THD: <= 0.3%


- External dimension: 7”(H), 12”(W), 10.5”(D)


- Weight: 25 pounds or 11.4 kg


- Voltage: AC 110/220V, 50/60 Hz


Tubes Upgrade (buy separately, please call for pricing) :


- Power tubes upgrade, Sylvania 7236 NOS 1963, Hand-pick matched pair (2pcs)


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.


- Driver tubes upgrade, Sylvania 6SN7GT NOS, Hand-pick matched pair (2pcs) with 30-day warranty


You get a clean and dense sound image with these tubes. It is very low noise, smooth and delicate in the upper frequency range, deep and solid bass, high clarity.


(Woo Audio has tested these tubes in an actual amplifier to ensure the highest quality)


- Rectifier tubes upgrade 1, Takatsuki TA-274B (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.


- Rectifier tube upgrade 2, Sophia Princess Mesh Plate 274B (1 pc) with 30-day warranty


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.


Accessories Included :


* Included tubes: 1 pair of 6AS7, 1 pair of 6SN7, and 1 274B


* Tubes shown on the pictures are not included.


* AC power supply cord, interconnection cable are not included


Available Colors :


- Silver


- Black

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WA22

  • Product Code: WA22
  • Availability: Pre-Order
  • Rp.0


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Tags: Woo Audio, Class A, Balanced