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Woo Audio WA22 (2nd gen) Fully-balanced Headphone Amplifier / Preamplifier

Woo Audio WA22 (2nd gen) Fully-balanced Headphone Amplifier / Preamplifier - Main image
$1997.26 $2699 In stock

Category: Electronics

Description

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.

Highlights
  • Updated to 2nd generation in March 2018

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

  • Polytetrafluoroethylene (PTFE) tube sockets

  • ALPS RK27 4-channel balanced smooth potentiometer

  • Fully-balanced design, Class-A

  • Power output: up to 1.5 watts per channel @32 Ohms [recommended for power demanding headphones]

  • 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)

  • Anodized aluminum chassis, available in black or silver

  • Self-biasing with compatible tubes [chart]

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

  • Designed and assembled in New York, USA

  • Three-year limited warranty [learn more]

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

  • 6080 vacuum tube x 2

  • 6SN7 vacuum tube x 2

  • 5U4G (5U3C) rectifier tube x 1

  • Quick start guide

*AC power cord and audio cables are not included

Suggested Headphones
  • ABYSS Diana DZ Luxury Audiophile Headphone

  • ABYSS DIANA MR Premium High-Performance Headphone

  • ABYSS DIANA TC Premium Audiophile Headphone

Suggested Cables
  • JPS Labs Kaptovator Lite High Performance AC Cable

  • JPS Labs UltraConductor 2 XLR Balanced Interconnect Cable pair

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.8 / 5 · 5 reviews)

Sofia H. ★★★★★

Running this as a preamp into my speaker setup made way more difference than I expected — the balanced XLR outs are dead quiet even with sensitive gear. It drives my planars with zero strain, though it does run warm after a few hours. Genuinely the last amp I'll need for a while.

Brian U. ★★★★★

Swapped in a set of 6SN7 tubes and the preamp outs let me run it straight into my speaker rig, which I didn't expect to use nearly this much. Dead silent background even with sensitive headphones, and the balanced XLR input keeps things clean from my DAC. Two months in and I'm still finding new deta

Sofia C. ★★★★★

Running my HD800s through the balanced output, the background is dead silent and the soundstage opened up noticeably compared to my old single-ended setup. The preamp feature is a nice bonus since I can now run it straight into my speakers. Tube rolling is half the fun with this thing.