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NEW Fosi Audio S3 Balanced HiFi Streamer/DAC/Preamp

Fosi AudioPart # 235-255
Model: S3

The Fosi Audio S3 Balanced HiFi Streamer is a compact all-in-one streaming solution that combines a network streamer, DAC, and preamp into a single chassis. Built around a fully balanced architecture and a flagship AKM DAC, it’s designed to deliver low-noise, high-resolution playback with flexible wireless and wired streaming options.

Key Features

  • All-in-one streamer, DAC, and preamp simplifies system design by reducing the need for multiple components
  • AK4493SEQ DAC with THD+N ≤0.00018% and up to 120 dB SNR delivers highly accurate, low-noise signal reproduction
  • Fully balanced circuit with XLR outputs improves channel separation and expands soundstage for more immersive playback
  • Dual-band Wi-Fi 6 and Bluetooth 5.3 provide stable, high-speed wireless streaming across the home
  • Supports AirPlay 2, Spotify Connect, TIDAL Connect, Google Cast, and DLNA for seamless integration with major streaming platforms
  • App control with built-in 5-band EQ allows easy playback management and sound customization
  • Multi-room playback support enables synchronized audio throughout the home
NEW $259.99
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Overview

Fosi Audio S3 Balanced HiFi Streamer/DAC/Preamp

Fosi Audio S3 Balanced HiFi Streamer / DAC / Preamp

Stream Every Sonic Detail

Supports popular streaming services such as TIDAL Connect and Spotify Connect, allowing you to stream music directly from your apps to the S3 for seamless playback.

Multiple Options for Enjoying Music

Supports up to PCM 32bit/384kHz lossless audio, delivering wired-level sound quality with the convenience of wireless control.

Note: Roon Ready certification is in progress and not yet supported. You can still use Roon via AirPlay 2 or Google Cast.

Dual-Band 2.4GHz/5GHz Wi-Fi 6

The S3 streams music with rock-solid stability throughout your home.

Control Playback and Switch Input/Output Modes

The app includes a built-in 5-band precision EQ that allows you to adjust the sound to suit your preferences.

Play Music Everywhere

The S3 streamer enables synchronized multi-room playback through Google Cast and AirPlay 2.

Hassle-Free Use

The S3 features bottom heat dissipation for stable performance, a 12V trigger for synchronized system power, and built-in overcurrent and overvoltage protection for added safety. A Bluetooth remote provides convenient wireless control of volume, inputs, and playback.

An Independent AK4493SEQ DAC

With THD+N as low as 0.00018% and an SNR up to 120 dB, it delivers a clean, highly accurate signal at the source.

Isolated Analog & Digital Architecture

Carefully chosen premium components reduce noise and create a cleaner signal path.

Premium Listening

Connect from anywhere in your home and stream your favorite content, from radio to music, with ease.

Born for Home Audio

All in One HiFi Streamer
The S3 integrates digital transport, DAC, and preamp into a single chassis. The AK4493SEQ DAC supports PCM up to 32bit/384kHz with THD+N ≤0.00018% and SNR ≥120dB, delivering reference-level performance for serious home audio systems.

WiFi 6 and Bluetooth 5.3
Dual-band 2.4/5GHz WiFi and Bluetooth provide wider coverage and faster wireless connectivity. Supports AirPlay 2, Spotify Connect, TIDAL Connect, Google Cast, and DLNA for easy streaming from NAS or online services.

Balanced Circuit with Premium Components
Isolated analog and digital architecture with Japan ELNA capacitors and ultra-low-noise LDO power supply. Dual op-amp differential amplification with XLR balanced outputs for improved separation and a wider soundstage.

Intelligent Control and Home Theater Ready
Simple setup through the Fosi Audio app with playback control and EQ adjustment. Includes HDMI eARC and a dedicated subwoofer output for integration into a 2.1 home theater system.

Reliable Streaming Amplifier with Smart Protection
Features 12V trigger synchronization, overcurrent and overvoltage protection, and bottom heat dissipation. Compact 6.81" design pairs easily with integrated amplifiers while delivering audiophile-grade performance.

Specifications

  • Chipset: Amlogic A113X + AKM 4493SEQ + OPA1612
  • Network: 802.11 a/b/g/n/ac/ax dual-band Wi-Fi (2.4 GHz and 5 GHz) 10/100M Ethernet port
  • Bluetooth: Bluetooth 5.3, A2DP, AVRCP, BTLE; supports SBC and AAC codecs
  • Remote Control: Bluetooth connectivity with a range of over 15 meters
  • Power: DC 12V 1.5A
  • Streaming Protocols: Google Cast, AirPlay 2, DLNA, Roon Ready, Spotify Connect, Tidal Connect
  • APP: Fosi Audio APP Download on Google Play and the App Store
  • Dimensions: 17.3 × 17.3 × 4.7 cm (6.81 × 6.81 × 1.85 in)

  • Input Sampling Rate
    -OPT: PCM 24bit / 192kHzBT:
    -PCM 24bit / 48kHz
    -Google Cast: PCM 24bit / 96kHz
    -Airplay 2: PCM 16bit / 48kHz
    -HDMI: PCM 24bit / 192kHz
    -Roon Ready: PCM 32bit / 384kHz
    -Wi-Fi: PCM 24bit / 192kHz

What‘s in the box？

  • Fosi Audio S3
  • Bluetooth Remote Control
  • Quick Guide
  • DC Power Adapter
  • Optical Cable

Product Details

BrandFosi Audio
ModelS3
Part Number235-255
Unit of MeasureEach
Weight3.05

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