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US$125 is a touch above the US$113 median, but still well inside the normal used range given the US$101 to US$188 spread, so this reads as fair rather than ambitious. It is not a bargain on price alone, but it is close enough to the center of the market that a clean example can make sense.
That’s especially true because this unit is still a genuinely useful portable DAC/amp: the HA-2 is well liked for adding a clear, lively headphone output and for making phone/laptop listening more flexible. At this level, the main upside is simple usability—if the battery holds charge and the accessories/cables are intact, it’s a solid enthusiast buy.
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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