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AS NEW!!!!!! Review unit so minimal use, GRAB a BARGAIN!! RRP $799 Suitable for a variety of headphones: The TA20 Plus is a desktop balanced tube headphone amplifier. It has numerous input and output interfaces, with two RCA inputs and one balanced XLR input, has unbalanced 6.35mm headphone outpu...
A$575 is basically fair for this one, sitting just above the A$567 median and within the tight A$563–A$571 recent range. It’s not a steal, but it’s close enough to market that a clean, complete unit makes sense.
The TA-20 Plus is well-liked for its lively, slightly tube-flavored presentation with enough drive to suit many dynamic and planar headphones, so the appeal here is real if you want a desktop amp with some character. At this price, the main upside is simply getting a respected hybrid amp in known-good condition; if it’s been cared for and includes the original power supply, tubes, and packaging, it’s a straightforward 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.
![Xduoo TA-20 Plus Balanced Class A Tube Amplifier [Mint]](https://i.ebayimg.com/images/g/AT4AAeSwvn5qUNk4/s-l225.jpg)
