An Affordable Audiophile Brand Is Taking a Big Leap Into Modern Hi-Fi

The company claims its newest component is designed to serve as the central source for modern home audio systems.

Audio equipment including a turntable, amplifier with orange dial, two black audio units on a clear acrylic stand, and a white speaker with copper cone on a wooden shelf.

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By Tucker Bowe

Published March 26, 2026

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Updated March 26, 2026

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Since bursting on the scene less than a decade ago, Fosi Audio has developed quite a reputation for its affordable hi-fi gear. It specializes in compact amplifiers, DACs and headphone amplifiers designed to elevate your home desktop setups.

Earlier this year, the company released the BT20A Max ($230), an integrated amplifier designed to power a pair of passive bookshelf speakers. Now it’s making its first foray into high-resolution streaming with its latest component.

Fosi Audio S3

Streamer, DAC and preamp

The Fosi Audio S3 is a hi-fi component that combines a network streamer, a high-resolution DAC and a preamp into one compact gray box. Similar to offerings by WiiM or Bluesound, it’s designed to bring your home’s traditional hi-fi system up to today’s modern streaming standards.

On the streaming side, the S3 supports a wide range of streaming protocols, including Spotify Connect, TIDAL Connect, AirPlay 2, Google Cast and DLNA. When streaming over Wi-Fi, it supports audio up to 24-bit 192kHz. It’s Roon Ready and, when used within that ecosystem, it’s capable of playing lossless audio up to PCM 32-bit/384kHz.

The S3 supports Bluetooth streaming, too.

White bookshelf speaker with copper driver on a black stand next to a wooden shelf holding vinyl records, a laptop, and audio equipment. — According to the brand, the S3 has a balanced circuit design that “provides a clean, low-noise signal path, ensuring a stable and transparent foundation for the rest of the audio system.”

Gray audio interface with multiple input/output ports on a wooden shelf next to a black turntable. — The S3 integrates easily into both stereo and home theater setups.

Home stereo, home theater

But, as mentioned, the S3 is more than just a streamer. It can also function as a standalone digital transport, DAC or preamp, allowing it to work in a wide range of home stereo and home theater systems.

It features HDMI eARC, RCA and XLR outputs, optical connections and a dedicated subwoofer output. According to the brand, it can “serve as the centerpiece of a 2.1 system or a traditional hi-fi setup.”

The S3 also works with Fosi Audio’s companion app, which handles the input switching and gives you access to a five-band equalizer (enabling you to further fine-tune your sound).

White speaker with copper cone driver next to black and silver audio equipment with orange knob on wooden shelf with CDs. — The S3 adds Wi-Fi and Bluetooth streaming, and it can access music stored on local NAS drives.

Compact silver audio amplifier with an orange volume knob on a wooden shelf above a collection of vinyl records. — The S3 is the company’s first foray into high-resolution streaming.

Availability and pricing

The Fosi Audio S3 is available now from the company’s official website and authorized global retailers for $259.

Fosi Audio S3

The Fosi Audio S3 is the company’s first foray into high-resolution streaming. It’s a network streamer, a high-resolution DAC and a preamp, designed to bring your home’s traditional hi-fi system up to today’s modern streaming standards. It supports a wide range of streaming protocols, including Spotify Connect, TIDAL Connect, AirPlay 2, Google Cast, and DLNA. More than a streamer, the S3 can function as a standalone digital transport, DAC or preamp, allowing it to work in a wide range of home stereo and home theater systems. According to the brand, it can “serve as the centerpiece of a 2.1 system or a traditional hi-fi setup.”

$260 at Fosi Audio

About the Author: Tucker Bowe has been on Gear Patrol’s editorial team since 2014. With a passion for consumer tech and hi-fi, he tracks everything from headphones and turntables to smartphones and wearables. If it lights up or makes noise, he probably covers it.

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