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Unknown condition makes the price harder to assess, but at £390 this is a genuine bargain against the usual used market: the £522 median, £473 25th percentile, and £577 75th percentile from 14 comparables put it well below the lower quartile. Even allowing for some uncertainty, it has enough headroom to remain attractive unless the unit has faults or is missing key accessories.
The HA-1 is a seriously capable all-in-one headphone amplifier and DAC, valued for its powerful, clean output, useful balanced connectivity, analogue inputs, and flexible digital support. It can anchor a headphone system while also serving as a compact preamp. Because condition is unspecified, check the OLED display, volume control, inputs, headphone outputs, remote, and power supply; with those working properly, £390 looks like an excellent buying opportunity.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Oppo Digital, the audiophile arm of the Chinese electronics giant Oppo, traces its roots to 2004 with the establishment of its U.S. division in Menlo Park, California. This overseas outpost of the Dongguan-based parent company, founded amid BBK Electronics' expansion under entrepreneur Duan Yongping, focused on high-fidelity audio and video gear sold exclusively online. From humble beginnings in MP3 players and DVD units, it carved a niche in premium home entertainment during the Blu-ray era.
The brand specialized in personal audio and video equipment, gaining acclaim for Blu-ray Disc players renowned for superior sound quality, sleek design, and robust performance. Entering the personal audio market in 2014, Oppo offered headphones and related products that emphasized precision playback, though it never delved deeply into traditional hi-fi categories like amplifiers, speakers, turntables, DACs, or cables.
Oppo Digital held a strong mid-to-high-end position among discerning buyers, prized for reliable, value-driven excellence in digital playback before ceasing operations around 2020. Its legacy endures as a benchmark for accessible audiophile gear, appealing to enthusiasts seeking polished integration of video and sound without boutique excess.
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