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This US$60 listing for a used xDuoo MT-602 is a strong deal, sitting well below the 25th percentile of US$63 for recent comparable USD listings, with the median at US$81. In the current used market, this price represents a genuine bargain for a well-regarded hybrid tube amp, offering significant upside for anyone looking to dip into tube sound without paying retail or near-median prices.
The MT-602 is beloved as an affordable entry into tube amplification, delivering 1300mW at 32Ω and driving headphones from 16–600Ω with a warm, spacious sound and clearer sub-bass than its sibling MT-604. It doubles as a preamp with variable line-out control, includes muting to prevent power-up pops, and supports tube rolling for tonal customization. At US$60, this is a clean buying opportunity for a compact, powerful desktop amp that punches well above its price class.
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.
