Woo Audio WA22 Balanced Amp and Preamp

Overview

Originally introduced in 2009, WA22 has been an audiophile favorite. New for 2018 is improved sonic performance and preamplifier feature for use with a Hi-Fi system. WA22 (2nd gen) is an all-tube design, fully balanced headphone amplifier and preamplifier. The advantage of a fully balanced system is improved channel separation, more precise soundstage, and imaging. Perfectly suited for the headphone enthusiast and experienced audiophiles seeking flexibility and purest sound.

• Updated to 2nd generation in March 2018

• Tubes: 6SN7 driver x 2, 6080 power x 2, 5U4G rectifier x 1

• Polytetrafluoroethylene (PTFE) tube sockets

• Fully-balanced design, Class-A

• Transformer-coupled, Point-to-Point wiring, Pseudo-dual power supply

• Phase Splitter for use with unbalanced components

• HI / LO impedance setting

• XLR input x 1, RCA input x 1

• Dual 3-pin XLR (left and right channel), 4-pin XLR and 1/4" (6.3mm) stereo headphone outputs

• XLR balanced PREAMP output (<50 ohms)

• ALPS smooth potentiometer

• Anodized aluminum chassis, available in black or silver

• Self-biasing with compatible tubes

• Global voltage (100v–220v) without converter

• Dimensions: 7"(H), 12"(W), 10½"(D) amplifier 25 lbs.

In the box

• Quick start guide

• WA22 (2nd gen) headphone amplifier/preamplifier x 1

• 6080 vacuum tube x 2

• 6SN7 vacuum tube x 2

• 5U4G vacuum tube x 1

*AC power cord and audio cables are not included

Specifications

Colors: Black, Silver

Voltage: AC 110/220 - 240V, 50/60 Hz, Switchable

Power Output: 1500 MW @32 Ω, 1500 MW @60 Ω, 1600 MW @120 Ω, 1100 MW @300 Ω, 700 MW @600 Ω (With 7236 Tube)

Frequency Response: 8 Hz - 50 kHz, -3 dB

Impedance: 100 kΩ

Signal/Noise: 92 dB

THD: <= 0.3%