WA22

About the WA22

Originally introduced in 2009 and updated to the 2nd generation in 2018, the Woo Audio WA-22 is an all-tube, fully balanced headphone amplifier and preamplifier designed and assembled in New York, USA. It features a Class-A output transformer-coupled design with point-to-point wiring and a pseudo-dual power supply. The WA-22 uses 6SN7 driver tubes, 6080 power tubes, and a 5U4G rectifier tube, with PTFE tube sockets and an ALPS RK27 4-channel balanced smooth potentiometer. It delivers up to 1.5 watts per channel at 32 Ohms, making it suitable for power-demanding headphones. The amplifier includes HI/LO impedance settings, balanced XLR and unbalanced RCA inputs, and multiple headphone outputs including dual 3-pin XLR, 4-pin XLR, and 1/4" stereo jack. It also offers a balanced preamp output and phase splitter for unbalanced components. The chassis is anodized aluminum, available in black or silver, and the unit weighs approximately 25 lbs with dimensions of 7"(H) x 12"(W) x 10.5"(D). It comes with a three-year limited warranty and includes tubes and a quick start guide, but does not include power cords or audio cables. The WA-22 is highly regarded for its detailed, dynamic, and tonally balanced sound with improved sonic performance over its predecessor.