RADAR is a price search engine. We link to the original listing — we never sell direct. Transactions happen on the source site.
* Estate Sale Listing , 25+ year collection of musical instruments, gear, and electronics. *This item has been inspected and is in its original manufacturer box. GRADING NOTES: In original box. Includes power adapter and manualEye Appeal: ExcellentSurface: ExcellentHere’s an opportunity to experience a one-of-a-kind, massive estate sale packed with a 25+ year collection of varied instruments and gear that needs to find a new home after the owner recently passed away. Some lightly used gear, some brand new in open box / never played - all priced to move!Please note that these are used items, and may or may not have been in homes with smoking or pets throughout their journey over the years. We do make our best effort to air out cases, using activated charcoal in instances where the smells are more prominent. Any accessories including cables, boxes and power supplies will be accurately photographed in our listings. If any of the previously mentioned items are not viewable in the photos or added to the grading notes, they may not included with the advertised product.
At US$69, this sits a bit above the US$56 median for recent comps and inside the normal middle band between US$41 and US$77, so it reads as fair to slightly firm, not a bargain. It is not overpriced unless the unit is missing the power supply or shows functional issues.
The upside is that this is a well-liked compact Class D integrated amp: small, efficient, easy to place, and generally strong value for desktop or secondary systems. For a clean example, the main things to confirm are the included power supply, Bluetooth stability, and that both channels work quietly at higher volume. If it’s complete and tidy, it’s a sensible buy at this level.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Fosi Audio emerged in January 2017 from a modest 10-square-meter office in Shenzhen, China, founded by Ryan Huang and a partner driven by the conviction that high-fidelity sound should be accessible without elite pricing. The brand represents the new wave of Chinese audio manufacturers challenging the traditionally expensive import-dominated hi-fi market. In less than a decade, the company has grown from a confidential startup to an internationally recognized player, now operating from an R&D center spanning over 2,300 square meters and holding more than 100 patents.
Fosi Audio's product portfolio spans the full spectrum of hi-fi components, with particular strength in compact amplifiers and digital-to-analog converters that deliver disproportionate performance for their price point. The brand manufactures integrated and multi-channel amplifiers, DACs, headphone amplifiers, preamplifiers including phono stages, passive subwoofer modules, speakers, headphones, and cables. This comprehensive range reflects a deliberate strategy to serve both entry-level enthusiasts and experienced audiophiles seeking value-oriented solutions rather than feature-laden complexity.
The brand occupies a distinctly mid-tier, value-conscious position in the market, distributed across more than 150 countries and frequently ranking atop Amazon's hi-fi charts. Fosi's reputation rests on pragmatic engineering—delivering compelling sound quality through efficient, optimized electronics rather than pursuing systematic upscaling. The company sells directly through its website, Amazon, and AliExpress, backing products with lifetime technical support and a 24-month warranty, positioning itself as an accessible gateway into serious hi-fi rather than a luxury or boutique concern.
See all Fosi Audio listings on RADAR.
