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Woo Audio WA11 Topaz Headphone Amp / DAC The WA11 delivers an audiophile sound quality that rivals many desktop systems and with the features users dream of. Weighing at 413g and 24mm thick, the WA11 Topaz is a battery-powered, fully-balanced headphone amplifier and DAC running in a Class-A topology. It is capable of driving the most demanding full-size headphones while maintaining an ultra-low noise floor for reference in-ear monitors. The DAC is an ESS Sabre capable of decoding PCM up to 24-bit/384kHz and up to DSD128. There is also a 4.4mm balanced input for use with balanced sources such
This A$750 asking price is a strong bargain, sitting well below the 25th percentile of A$847 and far under the A$1,217 median for recent AUD listings. You are effectively buying this premium portable unit for roughly 38% less than the typical market floor, making it an exceptional value opportunity.
The WA11 Topaz is widely respected as a world-class portable amplifier that delivers desktop-rivaling sound in a fully-balanced, Class-A topology capable of driving demanding full-range headphones with up to 1.2 watts of power. Its unique market position as a high-power, battery-operated DAC/amp combo (with ~6 hours runtime) combined with this deep discount makes it a compelling buy for any enthusiast seeking serious portable performance without the usual premium price tag.
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.
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