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The WA22 is Woo Audio’s well-regarded flagship-style transformer-coupled headphone amplifier, but US$4,300 is clearly ambitious here. Recent comparable asking prices center at US$1,599, with the 75th percentile at US$2,950; this listing sits roughly US$1,350 above even that upper benchmark. Unless it is an unusually rare, pristine example with exceptional provenance, the price is difficult to justify.
The appeal is real: the WA22 offers a lush, spacious, powerful presentation, balanced operation, and substantial tube-rolling potential, making it especially attractive with demanding dynamic headphones. It can be a superb centerpiece for the right system, but at this level the buyer should expect complete original accessories, excellent cosmetic condition, proven transformer and socket health, and recent service documentation. Negotiation would be essential; closer to the established market range, it becomes a compelling buy.
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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