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Seller's Description

AS NEW Review unit so minmal use - Grab a bargain!!! $240 RRPI had a LOT of fun with this!!!High-Performance DAC/Amp Chipset: Features the ESS ES9039Q2M DAC and four ES9603Q amp chips in a true balanced circuit, delivering ultra-low THD+N of just 0.00075%. Frequency response spans 20Hz–48kH...

Our Thoughts RADAR AI

Compared with a new budget dongle DAC/amp, A$165 is a bit above the middle of the used market, but still squarely in the acceptable range for this model: it sits above the A$99 median and just under the A$167 75th percentile, so this reads as fair rather than a steal or a stretch. For a current-generation desktop headphone amp with DAC, that’s a sensible asking price if the unit is clean and fully working.

The appeal here is straightforward: these Fosi boxes are popular because they give a compact, low-fuss way to add proper headphone drive and a built-in DAC without taking up much desk space. If it includes the original power supply and cables, that helps the value, and a tidy, lightly used example at this price is the kind of listing worth moving on quickly.

Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.

About Fosi Audio

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.

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