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Recent comparable asking prices put this amplifier’s used-market median at US$2,250, with the middle 50% spanning roughly US$1,565 to US$3,250. At US$2,900, the listing is above median but still inside that observed range: fair for a strong example, though not a bargain. Since the condition is unspecified, the price needs to be justified by excellent cosmetics, recent service, or a complete package.
The WA22 remains a desirable transformer-coupled tube amplifier, valued for its substantial, spacious presentation, strong dynamics, and ability to make high-end headphones sound more dimensional and authoritative. Its balanced design and tube-rolling flexibility add real enthusiast appeal. Before committing at this level, confirm the exact version, tube complement, operating condition, and whether the original power supply, cables, and packaging are included; those details determine whether US$2,900 feels properly earned.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Woo Audio is a New York-based high-end audio company founded in the mid-2000s, with 2006 widely cited as its launch year. It was built by the Wu family, with Jack Wu as the public face of the brand and key design influence, alongside family members who helped shape the company’s early growth. Its roots are in tube electronics and a strong appreciation for live sound, which has remained central to its identity.
The brand is best known for vacuum-tube headphone amplifiers, especially models such as the WA series, along with electrostatic headphone amplifiers like the WES. Woo also makes a smaller range of speaker amps, plus related audio accessories and cables, while its website and retail focus remain centered on amplification and headphone-oriented listening rather than source components or turntables.
In the market, Woo Audio sits firmly in the boutique high-end niche. It is respected among headphone enthusiasts for handcrafted, valve-based designs, substantial build quality, and a distinctive sonic character often associated with warmth, scale, and refinement. It is not a mass-market brand; instead, it appeals to serious buyers looking for premium, specialized amplification with a strong American-made identity.
See all Woo Audio listings on RADAR.
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![[Customized] Woo Audio WA22 (1st gen) Fully-balanced Headphone Amp - Silver](https://i.ebayimg.com/images/g/CYYAAeSwIftqtqn4/s-l225.jpg)
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