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Condition is unknown, so the low asking price does most of the talking here: at £165, this sits well below the £360 25th percentile and is a strong deal versus the recent comparable UK market, with plenty of room against the £548 median. For a Woo Audio tube lot, that is the kind of pricing that can make sense even before you price individual pieces.
The appeal is obvious if you run a WA6: these are the sort of rectifier/output tube options that can meaningfully shape the amp’s tone, and a mixed lot gives you both experimentation and spares in one shot. If the tubes test strong and the Mullard GZ34 is genuine, the upside is real; just confirm counts, test results, and whether any are matched, because that matters more than cosmetics in a lot like this.
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.
