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This is a fair ask, leaning slightly deal-friendly for a WA5 at US$2,599. Recent used asking prices I can anchor to run from about US$2,250 to US$5,500, with Woo’s own trade-up credit putting a WA5 at US$1,600 for 1st gen or US$3,000 for 2nd gen, so this lands in the sensible middle rather than looking stretched.
That’s why it’s worth a look: the WA5 is one of Woo’s classic all-tube integrated designs, prized for big, dimensional presentation and real speaker/headphone versatility. At this price, the upside is strongest if it’s clean, fully functional, and comes with useful extras like good tubes or original packaging; if it’s a 2nd-gen unit, the value is especially solid. The main thing I’d verify is tube health and service history, since repair costs can add up on a high-end tube amp.
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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