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This is a fair ask: at US$320, it lands just under the US$325 median and right at the US$320 25th percentile, so it’s priced at the lower edge of normal rather than as a bargain. It’s not cheap enough to call a steal, but it is squarely in the buyer-friendly zone for a recent used TA-22.
That makes it an easy one to consider if the unit is clean and fully functional. The TA-22 is well-liked for giving a rich tube/solid-state hybrid flavor with enough drive to suit both headphones and a preamp role, so the real upside here is getting that versatility without paying above-market money. At this price, a complete listing with no hum, scratchy controls, or missing power/accessory pieces is a sensible buy.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
xDuoo is a Shenzhen, China-based audio brand that emerged from the country’s fast-growing hi-fi manufacturing ecosystem. Its exact founding year is not consistently stated in the sources available here, and no founder is prominently verified, but the company is widely presented as Shenzhen xDuoo Technology Co., Ltd., with roots in OEM/ODM production before building its own consumer-facing identity.
The brand is best known for headphone amplifiers, DAC/amp combos, portable DACs, tube hybrids, and other desktop-and-portable electronics aimed at personal audio enthusiasts. xDuoo’s lineup has included tube headphone amps, balanced amplifier designs, digital-to-analog converters, and all-in-one sources, typically positioned for headphones rather than loudspeakers or turntables.
In the market, xDuoo sits in the value-to-mid-tier audiophile segment, with a reputation for offering ambitious feature sets, lots of connectivity, and occasional tube-flavored designs at relatively accessible prices. It is not generally considered a luxury or vintage-collector brand, but rather a practical, performance-driven Chinese hi-fi maker with a strong presence among enthusiasts seeking high features per dollar.
See all xDuoo listings on RADAR.
