{"product_id":"fosi-audio-s3-balanced-hi-fi-music-streamer-dac-preamplifier","title":"Fosi Audio S3 Balanced Hi-Fi Music Streamer, DAC \u0026 Preamplifier","description":"\u003ch3\u003eFosi Audio S3 Balanced Hi-Fi Music Streamer, DAC \u0026amp; Preamplifier\u003c\/h3\u003e  \u003cp\u003eBring high-resolution wireless music streaming to your home audio system with the Fosi Audio S3 Balanced Hi-Fi Music Streamer, a versatile all-in-one network streamer, digital-to-analog converter, and stereo preamplifier designed for modern music enthusiasts. Featuring a premium AKM AK4493SEQ DAC, Amlogic A113X streaming processor, and Texas Instruments OPA1612 operational amplifiers, the S3 delivers detailed, low-distortion audio with a signal-to-noise ratio of at least 120dB. With Wi-Fi 6, Bluetooth 5.3, Apple AirPlay 2, Google Cast, Spotify Connect, TIDAL Connect, and Qobuz Connect support, the S3 brings your favorite music services together in a compact component designed for high-fidelity listening.\u003c\/p\u003e  \u003cp\u003eDesigned to make wireless music streaming effortless, the Fosi Audio S3 features dual-band Wi-Fi 6 connectivity supporting both 2.4GHz and 5GHz networks, along with a dedicated Ethernet port for a reliable wired network connection. Enjoy music directly from compatible streaming apps using Spotify Connect, TIDAL Connect, Qobuz Connect, Apple AirPlay 2, or Google Cast, or access music stored on compatible network-attached storage devices through DLNA. Bluetooth 5.3 provides another convenient way to play music from compatible smartphones, tablets, and computers, with support for SBC and AAC codecs. Whether you're listening to curated playlists, discovering new albums, or exploring a personal music library, the S3 delivers flexible streaming options without the need for a separate computer.\u003c\/p\u003e  \u003cp\u003eAt the heart of the S3 is its carefully engineered digital-to-analog conversion system, built around the AKM AK4493SEQ DAC and a fully balanced analog output stage. Featuring dual Texas Instruments OPA1612 operational amplifiers, Japanese ELNA capacitors, ultra-low-noise LDO power regulation, and isolated analog and digital circuitry, the S3 is designed to minimize unwanted noise and preserve musical detail. Its manufacturer-rated total harmonic distortion plus noise is just 0.00018% or less, with a SINAD of at least 117dB. Balanced XLR and unbalanced RCA outputs allow the S3 to connect to compatible power amplifiers, powered speakers, and integrated amplifiers, while an optical digital output makes it possible to use the S3 as a dedicated network transport with an external DAC.\u003c\/p\u003e  \u003cp\u003eMore than just a music streamer, the Fosi Audio S3 can also serve as the centerpiece of a modern stereo or 2.1-channel entertainment system. A dedicated HDMI eARC input lets you connect a compatible television and enjoy TV audio through your existing stereo system, while an optical digital input and stereo RCA analog input provide connections for additional audio sources. A dedicated powered subwoofer output makes it easy to add deeper bass to your listening setup, and a 12V trigger output enables synchronized power control with compatible downstream amplifiers. This flexibility makes the S3 an excellent companion for the Fosi Audio ZA3 power amplifier or other compatible Hi-Fi components.\u003c\/p\u003e  \u003cp\u003eControl your listening experience with the Fosi Audio App, available for compatible iOS and Android devices. The app simplifies network setup, music playback, input management, and sound customization with a built-in 10-band equalizer. An included Bluetooth remote provides convenient control over power, volume, playback, input selection, and output modes from your listening position. Firmware updates help keep the S3 current with supported streaming features and improvements. With a compact chassis measuring just 6.81 inches wide, the Fosi Audio S3 combines powerful streaming capabilities, premium audio engineering, and flexible connectivity in one streamlined addition to your home audio system.\u003c\/p\u003e  \u003ch4\u003eSpecifications\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Fosi Audio\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e S3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Network music streamer, DAC, and stereo preamplifier\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAudio Channels:\u003c\/strong\u003e 2-channel stereo\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSupported System Configuration:\u003c\/strong\u003e Stereo or 2.1-channel with powered subwoofer\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStreaming Processor:\u003c\/strong\u003e Amlogic A113X\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDAC Chip:\u003c\/strong\u003e AKM AK4493SEQ\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOperational Amplifiers:\u003c\/strong\u003e Texas Instruments OPA1612\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAnalog Circuit Design:\u003c\/strong\u003e Fully balanced differential amplification\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eInternal Architecture:\u003c\/strong\u003e Isolated analog and digital circuit sections\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCapacitors:\u003c\/strong\u003e Japanese ELNA capacitors\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePower Regulation:\u003c\/strong\u003e Ultra-low-noise LDO regulation\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNetwork Connectivity:\u003c\/strong\u003e Dual-band Wi-Fi 6 and wired Ethernet\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWi-Fi Standards:\u003c\/strong\u003e IEEE 802.11 a\/b\/g\/n\/ac\/ax\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWi-Fi Frequencies:\u003c\/strong\u003e 2.4GHz and 5GHz\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eEthernet Connection:\u003c\/strong\u003e 1 × RJ45 LAN port\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eEthernet Speed:\u003c\/strong\u003e 10\/100Mbps\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBluetooth Version:\u003c\/strong\u003e Bluetooth 5.3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBluetooth Profiles:\u003c\/strong\u003e A2DP, AVRCP, and BTLE\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBluetooth Audio Codecs:\u003c\/strong\u003e SBC and AAC\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApple AirPlay:\u003c\/strong\u003e AirPlay 1 and AirPlay 2\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGoogle Cast:\u003c\/strong\u003e Supported\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSpotify Connect:\u003c\/strong\u003e Supported\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eTIDAL Connect:\u003c\/strong\u003e Supported\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eQobuz Connect:\u003c\/strong\u003e Supported with updated firmware\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDLNA:\u003c\/strong\u003e Supported\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNetwork Music Playback:\u003c\/strong\u003e Supports compatible network-attached storage and DLNA music libraries\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRoon Compatibility:\u003c\/strong\u003e Playback available through AirPlay 2 or Google Cast; native Roon Ready certification remains pending\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaximum DAC PCM Capability:\u003c\/strong\u003e Up to 32-bit\/768kHz, subject to input method and firmware\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOptical Input Resolution:\u003c\/strong\u003e PCM up to 24-bit\/192kHz\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBluetooth Input Resolution:\u003c\/strong\u003e PCM up to 24-bit\/48kHz\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGoogle Cast Resolution:\u003c\/strong\u003e PCM up to 24-bit\/96kHz\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAirPlay 2 Resolution:\u003c\/strong\u003e PCM up to 16-bit\/48kHz\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHDMI eARC Input Resolution:\u003c\/strong\u003e PCM up to 24-bit\/192kHz\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWi-Fi Streaming Resolution:\u003c\/strong\u003e PCM up to 24-bit\/192kHz in the published input specification table; higher rates depend on the supported playback path\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAudio Inputs:\u003c\/strong\u003e HDMI eARC, optical digital, stereo RCA, Bluetooth, and network streaming\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHDMI Input:\u003c\/strong\u003e 1 × HDMI eARC\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOptical Digital Input:\u003c\/strong\u003e 1 × TOSLINK\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAnalog Audio Input:\u003c\/strong\u003e 1 × stereo RCA pair\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAudio Output Types:\u003c\/strong\u003e Balanced XLR, stereo RCA, optical digital, and powered subwoofer line output\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBalanced Analog Output:\u003c\/strong\u003e 1 × stereo XLR pair\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eUnbalanced Analog Output:\u003c\/strong\u003e 1 × stereo RCA pair\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDigital Audio Output:\u003c\/strong\u003e 1 × optical TOSLINK\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSubwoofer Output:\u003c\/strong\u003e 1 × RCA line-level output for a powered subwoofer\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOutput Selection:\u003c\/strong\u003e Selectable optical digital or RCA\/XLR analog output modes\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSubwoofer Output Operation:\u003c\/strong\u003e Remains active independently of the selected main output mode\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e12V Trigger:\u003c\/strong\u003e 1 × 12V trigger output\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e12V Trigger Function:\u003c\/strong\u003e Synchronized power control for compatible downstream audio equipment\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSignal-to-Noise Ratio:\u003c\/strong\u003e At least 120dB\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSINAD:\u003c\/strong\u003e At least 117dB\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eTotal Harmonic Distortion + Noise:\u003c\/strong\u003e 0.00018% or less\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSound Customization:\u003c\/strong\u003e App-based equalization\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eEqualizer:\u003c\/strong\u003e 10-band EQ with supported updated firmware\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eControl App:\u003c\/strong\u003e Fosi Audio App\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApp Compatibility:\u003c\/strong\u003e iOS, iPadOS, and Android\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApp Functions:\u003c\/strong\u003e Initial network setup, playback management, input control, device settings, and equalization\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eComputer App:\u003c\/strong\u003e No dedicated Windows, macOS, or Linux application\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRemote Control:\u003c\/strong\u003e Included Bluetooth remote\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRemote Operating Range:\u003c\/strong\u003e Over 15 meters under suitable conditions\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRemote Functions:\u003c\/strong\u003e Power, playback, volume, mute, input switching, output selection, and pairing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRemote Batteries:\u003c\/strong\u003e 2 AAA batteries required, not included\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFront-Panel Controls:\u003c\/strong\u003e Power\/input selection, Bluetooth pairing\/output selection, and volume control\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFront-Panel Indicators:\u003c\/strong\u003e LED indicators for input and output status\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eInput Modes:\u003c\/strong\u003e Wi-Fi\/LAN, Bluetooth, RCA, HDMI eARC, and optical\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFirmware Updates:\u003c\/strong\u003e Supported through the network\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePower Requirement:\u003c\/strong\u003e DC 12V\/1.5A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCooling:\u003c\/strong\u003e Passive chassis heat dissipation\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 17.3 × 17.3 × 4.7cm (6.81 × 6.81 × 1.85 inches)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBuilt-In Speaker Amplification:\u003c\/strong\u003e No; requires external amplification for passive speakers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBuilt-In Headphone Amplifier:\u003c\/strong\u003e No\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHeadphone Output:\u003c\/strong\u003e No\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBuilt-In Phono Preamplifier:\u003c\/strong\u003e No\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eUSB Audio Input:\u003c\/strong\u003e No\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCoaxial Digital Input:\u003c\/strong\u003e No\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHDMI Outputs:\u003c\/strong\u003e No\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer Warranty:\u003c\/strong\u003e 24-month limited warranty\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIncluded Accessories:\u003c\/strong\u003e Fosi Audio S3 Balanced Hi-Fi Streamer, Bluetooth remote control, DC power adapter, optical cable, and quick guide\u003c\/li\u003e \u003c\/ul\u003e  \u003ch4\u003eWhat It's Great At\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eHigh-Resolution Wireless Music Streaming:\u003c\/strong\u003e Wi-Fi 6, Ethernet, Apple AirPlay 2, Google Cast, Spotify Connect, TIDAL Connect, Qobuz Connect, and DLNA provide convenient access to streaming services and personal music libraries.\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003ePremium AKM Digital-to-Analog Conversion:\u003c\/strong\u003e The AKM AK4493SEQ DAC, OPA1612 operational amplifiers, and balanced audio circuitry deliver detailed, low-distortion sound with a signal-to-noise ratio of at least 120dB.\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eFlexible Stereo and Home Theater Connectivity:\u003c\/strong\u003e HDMI eARC, optical digital, and RCA inputs allow the S3 to accommodate televisions, external audio sources, and music streaming, while a dedicated powered subwoofer output supports 2.1-channel systems.\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eBalanced XLR and Digital Audio Outputs:\u003c\/strong\u003e Stereo XLR and RCA outputs provide convenient connections for compatible amplifiers and powered speakers, while optical digital output allows the S3 to operate as a dedicated network music transport.\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eConvenient App and Remote Control:\u003c\/strong\u003e The Fosi Audio App provides streaming setup, music playback management, and 10-band EQ customization, while the included Bluetooth remote offers easy everyday control from your listening position.\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eEasy Hi-Fi System Integration:\u003c\/strong\u003e A dedicated 12V trigger output, compact enclosure, and versatile analog and digital connections make the S3 an excellent companion for compatible power amplifiers and existing stereo audio systems.\u003c\/li\u003e \u003c\/ul\u003e  \u003ch4\u003eFAQ Section\u003c\/h4\u003e  \u003cp\u003e\u003cstrong\u003eQ: What is the Fosi Audio S3 Balanced Hi-Fi Streamer?\u003c\/strong\u003e\u003cbr\u003e A: The Fosi Audio S3 is an all-in-one network music streamer, DAC, and stereo preamplifier designed to bring wireless music services and digital audio connectivity to an existing Hi-Fi system. It supports Wi-Fi, Ethernet, Bluetooth, Apple AirPlay 2, Google Cast, Spotify Connect, TIDAL Connect, Qobuz Connect, and DLNA, with balanced XLR, RCA, and optical outputs for connecting compatible audio equipment.\u003c\/p\u003e  \u003cp\u003e\u003cstrong\u003eQ: Does the Fosi Audio S3 support Apple AirPlay and Bluetooth?\u003c\/strong\u003e\u003cbr\u003e A: Yes. The S3 supports Apple AirPlay 1 and AirPlay 2, allowing compatible Apple devices to stream audio over a network. It also features Bluetooth 5.3 with SBC and AAC codec support for wireless playback from compatible smartphones, tablets, and computers.\u003c\/p\u003e  \u003cp\u003e\u003cstrong\u003eQ: What music streaming services does the Fosi Audio S3 support?\u003c\/strong\u003e\u003cbr\u003e A: The S3 supports Spotify Connect, TIDAL Connect, Qobuz Connect, Apple AirPlay 2, Google Cast, and DLNA streaming. Qobuz Connect support is available with updated firmware. These technologies allow playback from compatible music apps and network music libraries, although supported features and maximum audio resolutions vary by service and connection type.\u003c\/p\u003e  \u003cp\u003e\u003cstrong\u003eQ: Does the Fosi Audio S3 support Roon Ready?\u003c\/strong\u003e\u003cbr\u003e A: Native Roon Ready certification is still pending and should not be considered an active certified feature. However, the S3 can receive audio from Roon through compatible AirPlay 2 or Google Cast connections. Direct Roon Ready integration will depend on future certification and firmware support.\u003c\/p\u003e  \u003cp\u003e\u003cstrong\u003eQ: Can I connect the Fosi Audio S3 to my television?\u003c\/strong\u003e\u003cbr\u003e A: Yes. The S3 includes one HDMI eARC input for connecting a compatible television and playing TV audio through a connected stereo system. It also features an optical digital input for compatible TVs and other digital sources. The S3 is designed for stereo audio playback rather than multichannel home theater decoding and requires external amplification or powered speakers.\u003c\/p\u003e  \u003cp\u003e\u003cstrong\u003eQ: Can I connect a powered subwoofer to the Fosi Audio S3?\u003c\/strong\u003e\u003cbr\u003e A: Yes. The S3 includes a dedicated RCA line-level output for a powered subwoofer, allowing you to build a 2.1-channel audio system with compatible speakers and amplification. The subwoofer output remains active regardless of whether the main output mode is set to analog RCA\/XLR or optical digital.\u003c\/p\u003e  \u003cp\u003e\u003cstrong\u003eQ: Does the Fosi Audio S3 have a 12V trigger?\u003c\/strong\u003e\u003cbr\u003e A: Yes. The S3 includes a 12V trigger output for synchronizing power with compatible downstream components. This allows a connected power amplifier, such as the Fosi Audio ZA3, to turn on and off automatically with the S3 when the proper trigger connection is used.\u003c\/p\u003e  \u003cp\u003e\u003cstrong\u003eQ: Can I control the Fosi Audio S3 with an app?\u003c\/strong\u003e\u003cbr\u003e A: Yes. The Fosi Audio App is available for compatible iPhone, iPad, and Android devices. It provides network setup, playback management, device settings, and a 10-band equalizer on supported firmware. The S3 also includes a Bluetooth remote for convenient playback, input selection, volume, and output control without using your phone.\u003c\/p\u003e","brand":"Fosi Audio","offers":[{"title":"Default Title","offer_id":62887289520287,"sku":"FOS-S3-SIL","price":259.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0495\/6910\/4031\/files\/1af46ac2-1f07-42ba-b863-6d80917f485c.jpg?v=1791570574","url":"https:\/\/listenup.com\/products\/fosi-audio-s3-balanced-hi-fi-music-streamer-dac-preamplifier","provider":"ListenUp","version":"1.0","type":"link"}