RADAR is a price search engine. We link to the original listing — we never sell direct. Transactions happen on the source site.
At US$50, this looks like a fair-to-good used price for a Fosi Q5, especially if it’s the DAC/amp version with the power supply and all cables included. New pricing for the Q5 has sat in the roughly US$30–US$50 neighborhood depending on bundle, so US$50 used is not a steal, but it is still reasonable if the unit is clean and fully working.
What makes it worth buying is the usual Fosi appeal: a compact desktop DAC with optical, coaxial, and USB inputs, plus RCA line out and a headphone jack, so it can pull double duty as a simple source for speakers or a basic headphone rig. The Q5 has a solid reputation for straightforward, no-fuss sound and surprisingly capable drive for the money, so a tidy original-owner piece can be a nice budget grab; at this price, I’d mainly want to see the PSU, input cables, and a quick confirmation that all inputs and the headphone output behave properly.
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.
