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Is this the kind of 300B amp you want to keep long-term? At US$3,250, it looks fair to slightly attractive versus the used market: I’m seeing a recent sold WA5-LE at US$3,150, an old WA5-LE listing at US$1,399.99 that was clearly an outlier, and current new pricing from Woo at US$4,499 for the 2nd gen unit. So this is not a steal, but it sits in the sensible zone for a desirable tube amp if it’s healthy and complete.
What makes it worth chasing is the sound: the WA5-LE is a well-regarded all-tube, 300B-based design with enough output to drive demanding headphones, plus the dual-chassis, reference-level build that gives it real summit-fi cachet. If the tubes are strong and the extras are included, it’s an easy one to justify for someone who wants that spacious, rich 300B presentation and is comfortable with the usual tube-amp ownership costs.
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.
