FiiO S15 HiFi MusicStreaming BLACK

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The FiiO S15 is a high-resolution audio streamer with a built-in preamplifier. It features an AKM DAC combo (AK4191 + AK4499EX), a 35W low-noise linear power supply, and full balanced analog audio output. It supports HDMI/ARC decoding and offers network/LAN connectivity

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Highlits

• Media Streamer / Local Playback / Decoder / Preamplifier
• Flagship AKM DAC Combo AK4191 + AK4499EX
• Femtosecond Crystal Oscillator with Ultra-Low Phase Noise
• Android 12 + Adaptive Landscape Display
• Snapdragon 660 + Qualcomm QCC5125 + XMOS 16-Core XU316
• Low-Noise 35W Linear Power Supply
• 7.84-inch Automotive-Grade Color Screen
• Fully Symmetrical Analog Audio Architecture
• HDMI/ARC Decoding
• Supports 2.4GHz/5GHz Wi-Fi
• Tidal Connect Not Supported

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An all-in-one hi-fi solution for the living room

First-class versatility, extremely powerful FIIO's first full-size all-in-one media streamer, the S15 Suitable for media streaming/network streaming/LAN playback/local playback/decoding/preamplification/digital jukebox Equipped with premium components, a wide range of interfaces, and numerous control options, and fully compatible with external decoders/amplifiers/speakers With its uncompromisingly high performance and numerous methods for easily controlling your music, it redefines what a media streamer can do.

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Majestic size and rock solidity

Full-size, all-metal construction, phenomenal sound The S15 features a standard 430 mm width, allowing it to blend seamlessly with your other living room devices to create a cohesive audio system. Thanks to its 5 kg all-metal chassis and sturdy, non-slip feet, sound degradation due to vibration is effectively prevented.

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Large 7.84-inch color screen

Excellent usability With a larger color screen than comparable products, combined with a custom Android 12 build that includes a custom portrait display system, the display is clear and easy to read. Direct interaction with the device is intuitive, making various operations easy to handle right out of the box. You'll immediately feel how every touch takes you quickly and easily to your desired destination.

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Low-noise 35W linear power supply

Sufficient power source The S15 is powered by a high-quality, low-noise transformer that ensures the purity of the delivered power. It is also equipped with four 4700μF ELNA audio capacitors, which provide a generous power reserve for continuous operation.

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A cutting-edge masterpiece

A window into the future, everything is covered Streaming media: Android 12 + a custom landscape display system means you can freely install many apps and use them seamlessly. The S15 is an open Android system and supports almost all Android apps. You can connect to Wi-Fi and access the FiiO Market, Google Play, or other apps to download and install relevant apps directly. Network streaming: With Roon Ready and AirPlay, DLNA streaming, and Bluetooth reception, you can stream music in high quality. LAN playback: Play music from your NAS/LAN/cloud server via network protocols such as UPNP/SBM/WebDAV. Local playback: In addition to locally stored music, you can also play files from microSD cards, USB flash drives, portable hard drives, and other devices. *Roon Ready certification is in progress. The exact time frame depends on the official announcement from FIIO.

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Precisely Reconstructed Sound

Present Down to the Finest Detail Two ACCUSILICON High-Performance Ultra-Low-Noise Femtosecond Crystal Oscillators For the first time, FIIO uses two industry-leading ACCUSILICON AS318-B series ultra-low phase noise femtosecond oscillators (45.1584 MHz, 49.1520 MHz) that have been fully shielded. These oscillators effectively reduce the effects of phase noise on audio signals, resulting in high decoding accuracy and precision of the digital output. When used in conjunction with high-performance external decoders and amplifiers, you can achieve reference-level sound.

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Proprietary Digital Audio Purification System (DAPS)

No End-to-End Resampling FIIO's proprietary Digital Audio Purification System (DAPS), consisting of a custom Android audio core and a low-jitter clock coprocessor, has been refined over many years. It enables unsampled audio globally at both the application and system levels. It can also precisely adjust different sampling rates of PCM and DSD audio to produce purer music.

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Digital-Analog Separation

Exact Reproduction of the Original Sound AKM Flagship DAC Combination AK4191+AK4499EX Like the Q15, the K9 AKM, and the M23, the M15 utilizes the highly acclaimed AKM flagship DAC combination – AK4191+AK4499EX. This combo is based on a new design that completely separates the digital and analog components and also incorporates DWA ROUTING Technology – all of which improves the signal-to-noise ratio and reduces noise across various amplitudes. The audible result is a clean background and improved resolution to deliver a natural, relaxed, and completely effortless sound.

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Fully Symmetrical Analog Audio Architecture

The S15 uses a fully symmetrical design, from the DAC decoding stage to the preamplifier stage. This design significantly reduces noise and crosstalk and improves the quality of the line and preamplifier outputs—for which you can choose between fixed and variable gain. The IV, LPF, and other audio sections rely on the low-noise precision OPA1612 operational amplifiers for the high-voltage power supply to faithfully reproduce the dynamics of your music.

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High-quality materials

All in the pursuit of sound quality ELNA electrolytic audio capacitors For a larger soundstage and better overall sound. 24 high-precision film resistors + 8 WIMA film capacitors + 4 solid capacitors Faithfully restores the energy and every tiny detail of your sound. Digital audio isolation transformer Both the coaxial and AES outputs are equipped with a digital audio isolation transformer that increases output power and effectively prevents ground loop interference. Its isolation performance is comparable to that of the optical output.

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Precise Power Supply Design

Separate Digital and Analog Power Supplies This design effectively prevents crosstalk between the analog and digital audio circuits. It also provides better power isolation and noise immunity.

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Multi-stage analog power supply

The analog section is powered by a multi-stage power supply featuring precisely divided stages for components such as the DAC and LPF. Each stage uses numerous precision low-dropout regulators (LDOs) for secondary regulation to ensure a consistent, stable, and pure power supply.

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New FIIO OS System for Landscape Display

Custom Landscape Display System FIIO's new custom landscape display system is specifically optimized for landscape screens like the S15. It not only features a clean and intuitive layout, but also enhanced visual effects for a more immersive experience. It can be easily controlled via close-range touch, the companion app, or a Bluetooth remote—whichever you prefer.

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Custom Landscape Version of FIIO Music

A version of FiiO Music tailored to the S15's display provides quick access to various music playback and settings menus. It supports visual audio effects such as VU meters for a more pleasant visual experience.

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Smart Bluetooth Control

Effortless Control With the included Bluetooth remote control, you can easily control music playback and volume remotely, and add tracks to "My Favorites" with just one click. The remote also supports gesture control, allowing you to seamlessly perform complex operations for an effortless and outstanding audiovisual experience.

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An audiovisual delight

It starts here Supports HDMI/ARC decoding The S15 features HDMI 2.0 decoding, HDMI output, and even HDMI ARC (Audio Return Channel), making it a vital component of your audiovisual setup. With the included Bluetooth remote control, you'll instantly immerse yourself in a magnificent audiovisual experience. HDMI decoding/output: Supports 192kHz/24-bit sampling rate HDMI ARC: Supports 44.1/48kHz sampling rate

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Packed with Connectors

Easy to Bring to the Stage I2S Output: Choose between 4 different pin sequences for use with devices from different brands. AES Input and Output: High-quality digital audio signal transmission with strong anti-interference effect. TRIGGER OUT connector: Allows connection to other 12V trigger devices for synchronous power on and off. Hard Drive Slot: A high-speed USB 3.2 M.2 SSD hard drive cage is included, allowing efficient storage and management of extensive libraries. Gold-Plated Copper Connectors + Oxygen-Free Copper Wiring: Both RCA output connectors are made of gold-plated copper, and the internal wiring is made of oxygen-free copper to ensure low-loss, high-quality signal transmission. NEUTRIK XLR connectors: Tulip-shaped connectors that are oxidation-resistant and durable, ensuring stable connections.

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High-Precision 10-Band PEQ

Unlimited Enjoyment The 10-band PEQ can be used in all operating modes. With FIIO's proprietary PEQ algorithm and interface, you can fine-tune the frequency points, gain, bandwidth, and Q value of the PEQ, or correct the headphone's frequency response curve or simulate that of other headphones to your liking.

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Technical Specifications

• Operating system: Android 12 + adapted landscape display system
• Storage expansion: M.2 SSD; microSD card slot
• Color: Black, Silver
• Dimensions: Approximately 430 x 274.5 x 89.5 mm
• Weight: Approximately 5647 g
• SoC: Qualcomm Snapdragon 660, 4 GB RAM + 64 GB ROM (approx. 46 GB available)
• Bluetooth Chip: Qualcomm Flagship QCC5181
• USB Chip: XMOS XU316
• DAC: AK4191 + AK4499EX
• Display: 7.84 inches
• Bluetooth 5.0, AAC/SBC/aptX/aptX HD/LDAC/LHDC
• Bluetooth Reception: Bluetooth 5.1, SBC/AAC/aptX/aptX LL/aptX HD/aptX Adaptive/LDAC
• Native Decoding: 384 kHz/32 bit; DSD256 (native)
• USB DAC: Supports 768kHz/32-bit (EQ mode supports up to 192kHz PCM); DSD512 (native)
• Coaxial input: 192kHz/24-bit
• AES input: 192kHz/24-bit
• Optical input: 96kHz/24-bit
• HDMI input: 192kHz/24-bit
• Digital output USB AUDIO: 768kHz/32-bit; DSD512 (supports DoP/D2P/native)
• Coaxial output: 384kHz/24-bit; DSD128 (D2P/DoP)
• Optical output: 192kHz/24-bit
• AES output: 384kHz/24-bit DSD128 (D2P/DoP)
• HDMI Output: 192kHz/24bit
• Preamp Output Preamp
• RCA Output: L+R=4.5Vrms+4.5Vrms (1kHz@10KΩ)
• Preamp XLR Output: L+R=8.9Vrms+8.9Vrms (1kHz@10KΩ)
• Line Output RCA Output: L+R=2.4Vrms+2.4Vrms (1kHz@10KΩ)
• XLR Output: L+R=4.8Vrms+4.8Vrms (1kHz@10KΩ)
• Audio Parameters Frequency Response: 20Hz~70kHz:
• Attenuation <2.8dB
• Signal-to-Noise Ratio: ≥131dB (A-weighted)
• Noise Floor: LO＜1.8μV (A-rated)
• THD+N: ＜0.00023% (1kHz/0dB@10kΩ)

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Package contents:

• 1x S15
• 1x Screwdriver for installing the hard drive cage
• 1x Spare fuse
• 1x Power cable
• 1x Bluetooth remote control
• 1x Hard drive cage data cable with 3.0 support
• 1x M.2 hard drive cage
• 1x USB-A dust plug
• 1x USB-C dust plug
• 1x 3.5 mm audio cable
• Hard drive cage user manual
• Remote control diagram