Fosi Audio S3 HiFi XLR Audio Streamer With Remote Control

High-Quality HiFi Streaming With Balanced XLR Sound!

The Fosi Audio S3 is a versatile high-resolution audio streamer, network player, digital-to-analog converter (DAC) and stereo preamplifier for demanding hi-fi systems. With modern Wi-Fi 6, Bluetooth 5.3, balanced XLR outputs and the high-quality AKM AK4493SEQ DAC, it combines convenient music streaming with precise audio engineering. Numerous streaming protocols — including AirPlay 2, Spotify Connect, TIDAL Connect, Qobuz Connect, Google Cast and DLNA — give you direct access to your favorite music sources. Thanks to HDMI eARC, optical and analog audio connections and a dedicated subwoofer output, the compact music streamer integrates flexibly into stereo systems and 2.1 home cinema setups. A Bluetooth remote control and the Fosi Audio App with a 10-band equalizer provide easy operation.

High-Resolution AKM DAC for Precise Audio Reproduction

Inside the Fosi Audio S3 sits the high-quality AKM AK4493SEQ DAC, which supports PCM audio up to 32-bit/384 kHz. A signal-to-noise ratio of at least 120 dB and a total harmonic distortion plus noise (THD+N) of no more than 0.00018 % underline its advanced audio engineering. A separated analog and digital architecture, high-quality ELNA capacitors from Japan, a low-noise power supply and OPA1612 op amps support clean, detailed signal processing. That makes the S3 an excellent choice for demanding music playback through high-quality amplifiers and active speakers.

Wi-Fi 6, Bluetooth 5.3 and Versatile Streaming Services

Via dual-band Wi-Fi with 2.4 GHz and 5 GHz or the built-in LAN port, the Fosi Audio S3 can be easily connected to your home network. Supported services include AirPlay 2, Spotify Connect, TIDAL Connect, Qobuz Connect, Google Cast as well as DLNA and UPnP. This lets you play music from compatible smartphones, tablets, streaming apps and network-attached storage (NAS). For direct wireless audio transmission, Bluetooth 5.3 with support for the SBC and AAC codecs is available. Integration into compatible multiroom systems via AirPlay 2 or Google Cast is also possible. That way you can enjoy your music collection and favorite streaming services with a flexible range of playback options.

Balanced XLR Outputs and Extensive Connectivity

The Fosi Audio S3 offers high-quality balanced XLR stereo outputs with a 4 V output level as well as classic phono outputs with 2 V. The balanced signal transmission is particularly suitable for high-end amplifiers and audio components with corresponding XLR inputs. Additionally, the unit features an optical digital output for connection to an external DAC. An analog phono input and an optical digital input allow you to integrate further audio sources. That makes the S3 not only a network audio player but also a central preamp within a versatile hi-fi system.

HDMI eARC and Subwoofer Output for TV and Home Cinema

Via HDMI eARC the S3 can be connected to a compatible TV and used for high-quality playback of TV audio. HDMI CEC support simplifies integration into an existing home cinema setup. Thanks to the separate Sub-Out connection you can add an active subwoofer and assemble a powerful 2.1 audio system. Together with an external stereo amplifier or suitable active speakers, this creates a flexible solution for music, movies and series. A 12 V trigger output also enables synchronized switching on and off of compatible audio devices.

Intuitive Control via App and Bluetooth Remote

The Fosi Audio App for iOS and Android lets you set up, manage sources and control the network streamer. With the integrated 10-band equalizer you can tailor the frequency response to your personal sound preferences. The supplied Bluetooth remote control has a manufacturer-specified range of over 15 m and allows convenient operation even without a smartphone. The S3 thus combines modern streaming features with the straightforward handling of a classic hi-fi component.

Compact Design and Thoughtful Hi-Fi Engineering

With compact dimensions (W×D×H): 17.3 x 17.3 x 4.7 cm, the Fosi Audio S3 fits neatly into existing audio racks and stereo systems. Internal power is provided by an external 12 V adapter; built-in protection against overcurrent and overvoltage as well as heat dissipation through the chassis floor complete the well-considered technical concept. Whether as a standalone hi-fi music streamer, a DAC preamplifier or a versatile control hub for your digital music collection: the Fosi Audio S3 combines modern connectivity, high-quality audio components and convenient controls for demanding music enjoyment.