Fosi Audio S3 Balanced Hi-Fi Streamer/DAC/Preamp

BH #FOS3 • MFR #S3
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Fosi Audio S3 Balanced Hi-Fi Streamer/DAC/Preamp
Key Features
  • Independent AK4493SEQ DAC
  • Up to PCM 384 kHz/32-Bit Sound
  • Wi-Fi 6 & Bluetooth Wireless Streaming
  • Dual Balanced XLR Inputs
Upgrade your home audio setup with reference-grade sound and wireless streaming with the S3 Balanced Hi-Fi Streamer/DAC/Preamp from Fosi Audio. The S3 has inputs to accept a TV, AVR, CD player, turntable (with phono preamp), and more. Output that audio to a power amp, decoder, or active speakers. Isolated analog and digital architecture, a balanced circuit, and an independent AK44935EQ DAC come together to deliver reference-grade sound up to 32-bit PCM 384 kHz quality. The S3 also adds the ability to stream from online services, such as TIDAL Connect and Spotify Connect, as well as your home NAS via Wi-Fi 6 (802.11ax). Mobile devices and laptops can also send music through the S3 via Bluetooth.
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Fosi Audio S3 Overview

Upgrade your home audio setup with reference-grade sound and wireless streaming with the S3 Balanced Hi-Fi Streamer/DAC/Preamp from Fosi Audio. The S3 has inputs to accept a TV, AVR, CD player, turntable (with phono preamp), and more. Output that audio to a power amp, decoder, or active speakers. Isolated analog and digital architecture, a balanced circuit, and an independent AK44935EQ DAC come together to deliver reference-grade sound up to 32-bit PCM 384 kHz quality. The S3 also adds the ability to stream from online services, such as TIDAL Connect and Spotify Connect, as well as your home NAS via Wi-Fi 6 (802.11ax). Mobile devices and laptops can also send music through the S3 via Bluetooth.

Premium Components for Accurate Sound
Integrated into the S3 is an independent AK4493SEQ DAC that can produce audio with a low THD+N at 0.00018% and a high SNR up to 120 dB. This reference-grade sound supports PCM output up to 384 kHz/32-bit. Add in an ultralow noise LDO power supply, dual op-amp differential amplification, and balanced XLR outputs, and you also get impressive clarity with detailed separation and a wide soundstage.
Additional Details
  • Works with Apple AirPlay 2 and Google Cast
  • Fosi audio app for playback, setup, and tuning of a 5-band EQ
  • Smart overcurrent and overvoltage protection
  • Bottom heat dissipation

Fosi Audio S3 Specs

General
Compatibility
Not Specified by Manufacturer
Audio
Chipset: Amlogic A113X + AKM 4493SEQ + OPA1612
OPT: PCM 192 kHz/24-bit
BT: PCM 48 kHz/24-bit
Google Cast: PCM 96 kHz/24-bit
AirPlay 2: PCM 48 kHz/16-bit
HDMI: PCM 192 kHz/24-bit
Roon Ready: PCM 384 kHz/32-bit
Wi-Fi: PCM 192 kHz/24-bit
THD+N: SNR: >/= 120 dB
Inputs/Outputs
Audio I/O
1x HDMI Input
1x TOSLINK Optical Input
1x RCA Input
2x XLR Output
1x RCA Output
1x RCA Speaker Output
1x TOSLINK Optical Output
Other Ports
1 x 10/100 Ethernet
1 x 3.5mm 12V Trigger
Wireless
Wireless
Bluetooth 5.3 / Wi-Fi 6E (802.11ax)
Mobile App Compatible
Yes: Android & iOS
App Name: Fosi Audio
Bluetooth
Profiles: A2DP, AVRCP, and BTLE
Codecs: SBC and AAC
Range: Up to 49.2' / 15 m
Power
Power Source
AC Input (Included)
DC Input Power
12 VDC at 1.5 A
Physical
Color
Silver
Dimensions
6.8 x 6.8 x 1.9" / 17.3 x 17.3 x 4.7 cm
Packaging Info
Package Weight
3.11 lb
Box Dimensions (LxWxH)
13.5 x 9.4 x 2.6"

Fosi Audio S3 Reviews

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