An All-In-One HiFi Solution for the Living Room Premium Versatility, Deeply Capable

FIlO's first full-size, all-in-one media streamer S15 Proficient in media streaming/network streaming/LAN playback/local playback decoding/preamplifier/digital jukebox Equipped with flagship parts, a wide variety of interfaces, and numerous ways to control it, and is fully compatible with external decoders/amplifiers/speakers With its uncompromised high performance and numerous methods to help you easily control your music, it redefines what a media streamer can do.

Majestically Grand, Rock-Solid Full-Sized, All-Metal Construction, Phenomenal Sound

The S15 features a standard width of 430mm, allowing it to seamlessly integrate with your other equipment in the living room to create a unified audio system. Thanks to its 5 kg all-metal body and stable non-slip feet, it effectively prevents sound degradation caused by vibrations.

7.84-Inch Automative-Grade Large Color Screen, Excellent Usability

With a larger color screen than similar products, combined with a custom Android 12 build that features a custom landscape display system, the display is clear and easy to read. Interacting with the device directly is intuitive, so that it is easy to handle various operations right out of the box. You can directly feel how each touch gets you easily and quickly to where you want.

35W Low-Noise Linear Power Supply Ample Energy Source

The S15 is powered by a custom high-quality low- noise transformer that ensures the purity of the power supplied. It is also equipped with four 4700pF ELNA audio capacitors that serve as an ample power reserve for continuous power.

Everything is Covered a True Audio "Master"

Streaming media: Android 12 + a custom landscape display system means you can freely install many apps and smoothly use them. Network streaming: With it being Roon Ready and AirPlay, and capable of LNA streaming and Bluetooth reception, you can enjoy high- quality streaming music.

LAN playback: Play music from your NAS/LAN/cloud servers through network protocols including UPNP/SMB/WebDAV.

Local playback: Besides locally stored music, you can also play files from microD cards, USB flash drives, portable hard disks, and other devices.

Precisely Restored Audio, Every Last Detail Present

Dual ACCUSILICON high-performance ultra-low noise femtosecond crystal oscillators.

For the first time, FIlO utilizes two industry-leading ACCUSILICON AS318-B series ultra-low phase noise femtosecond oscillators (45.1584MHz, 49.1520MHz), which have been fully screened. These effectively reduce the impact of phase noise on audio signals, resulting in high levels of decoding fidelity and digital output precision. When paired with high-performance external decoders and amplifiers, you can achieve reference-grade sound.

Proprietary DAPS (Digital Audio Purification System) No Resampling Throughout

FIlO's proprietary (DAPS digital audio purification system), composed of a custom Android audio core and a low-jitter clock coprocessor, has been refined over many years. It allows for non-resampled audio globally at both the application and system levels. It can also accurately match various sampling rates of PCM and DSD audio for purer music.

Main Processing Module & Co-Processing Module

Digital-Analog Separation Exactly Reproducing The Original Sound

Like in the Q15, K9 AKM, and M23, the S15 also utilizes the highly acclaimed AKM flagship DAC combo - AK4191+AK4499EX. This combo is based on a new design that fully separates the digital and analog portions and also incorporates 'DWA ROUTING Technology'-all of which enhances signal-to-noise ratio and reduces noise across various amplitudes. The audible result is a cleaner background and improved resolution to deliver a natural, relaxed, and totally unstrained sound.

Fully Balanced Analog Audio Architecture

The S15 uses a fully balanced design, including everything from the DAC decoding to the preamplifier stage. Such a design significantly reduces noise and crosstalk and improves the line and preamp output quality - for which you can choose between fixed or variable gain. The IV, LPF, and other audio sections count on OPA1612 low-noise precision op-amps for high voltage supply to ensure the dynamics in your music are faithfully reproduced.

Physical Partitions and Shielding Enjoy "Pure" Heavenly Sound

The digital, analog, and power sections are physically separated to prevent mutual interference, which ensures signals are accurately processed and all dynamics within the music are preserved. The end result is that you get to enjoy "pure" heavenly sound.

Separated Digital and Analog Power Supplies

This design effectively prevents crosstalk between the analog and digital audio circuits. It also provides better power isolation and interference resistance.

Multi-Stage Analog Power Supply

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

New FIIO OS Landscape Display System

FIIo's new custom landscape display system is specifically optimized for landscape screens like that found in the S15. It not only sports a clean and intuitive layout, but also boasts enhanced visual effects for a more immersive experience. It can be easily controlled via close-range touch, companion app, or Bluetooth remote, making it effortless to control whichever way you want to.

Custom Landscape Version of Fiio Music

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

Customizable Home Screen

Unlike other streamers, the S15 allows you to greatly customize it. You can freely edit the home screen layout to better suit your needs.

Genuinely Intelligent Easy to Control

App remote control Innovative dual-screen display FIIO is committed to enhancing the user experience. We have designed a dual-screen display feature within the companion app to allow you to have comprehensive control of the S15 at your fingertips using your phone.

Smart Bluetooth Control Control Without Worries

The included Bluetooth remote control allows you to easily manage music playback and volume adjustment from a distance, including adding tracks to "My Favorites" with just one click. The remote also supports gesture control that lets you handle complex operations seamlessly, ensuring an effortless and outstanding audiovisual experience.

Dual Knobs + Dual Virtual Keys

The knobs allow for more flexibility, while the virtual keys allow for quicker and more convenient controls for certain operations.

An Audiovisual Feast, Here it Begins Supports HDMI/ARC Decoding

The S15 boasts HDMI 2.0 decoding, HDMI output, and even HDMI ARC, (Audio Retur Channel) capabilities, allowing it to be a crucial component of your audiovisual setup. With the included Bluetooth remote control, instantly immerse yourself into a sumptuous audiovisual feast. HDMI decoding/output: Supports 192KHz/24bit sampling rate HDMI ARC:

Chock Full of Connectors Easily Take to The Stage

125 Output

Choose between 4 different pin sequences for use with devices of various brands.

AES Input and Output

High-quality digital audio signal transmis-sion with strong anti-interference.

Trigger Out Port

Allows to link to other 12V trigger devices to switch on and off synchronously.

Hard Disk Slot

Included is a high-speed USB3.2 M.2 SSD hard disk cage that can efficiently store and manage massive libraries.

Neutrik XLR Ports

Tuip-shaped terminals that are codation-resistant and durable for stable connections.

Gold-Plated Copper Connectors + Oxygen-Free Copper Internal Wiring

Both RCA output connectors are made of gold-plated copper, and the internal wiring utilizes oxygen-free copper to ensure high-fidelity signal transmission with minimal loss.

10-Band High-Precision Peq Boundless Enjoyment

With FiiO's proprietary PEQ algorithm and interface, you can finely adjust the PEQ's frequency points, gain, bandwidth, and Q value or correct the headphone's frequency response curve or simulate those of others to your taste.

Truly Versatile All-Round Brilliance

Specifications:

General Specifications:

• Name/Model: S15
• Hardware solution: Master control: Qualcomm Snapdragon 660, DAC: AK4191+AK4499EX, USdecoding: XU316, Bluetooth: QCC5125 (reception)
• Work mode: Android mode / Pure Music mode / USB DAC mode / Bluetooth receiving mode / AirPlamode / Coaxial Decoding mode / Roon Ready / Optical Decoding mode / HDMI IN mode / HDMI ARC mode / AES Decoding mode
• Weight: About 5647g
• Dimensions: About 430x274.5x89.5mm
• Volume control: Volume knob
• Display: 7.84-inch (400×1280) bezel-less display
• ROM: 64GB / About 46GB available
• RAM: 4GB
• M.2 portable hard disk: Supports up to 2TB
• Storage card: Single microSD card expansion, supports up to 2TB in theory
• Channel balance: L20~R20 (each for 0.5dB)

Buttons and Ports:

• Knob: Encoder knob (including volume adjusting) ×1 + Output selection knob (including poweon/off) ×1
• USB: Type-C USB3.0 ×1 + USB-A ×2 (data transfer)
• Grounding terminal: M6×23mm grounding terminal
• Toggle switch: Ground selection switch ×1
• Balanced line-out port: XLR3 balanced port
• Single-ended line-out port: RCA port ×2
• Digital optical input port: Optical port
• Digital coaxial input port: RCA port
• Digital optical output port: Optical port
• Digital coaxial output port: RCA port
• AES input port: XLR3 balanced port
• AES output port: XLR3 balanced port
• TRIGGER port: Standard 3.5mm headphone port (TRIGGER OUT port ×1)
• HDMI port: HDMI IN port ×1, HDMI OUT (ARC) port ×1
• Ethernet port: 100M Ethernet port
• I2S port: HDMI I2S output port ×1

Special Functions:

• WiFi: 2.4GHz/5GHz, supports DLNA, AirPlay, WiFi song transfer, Roon Ready, etc.
• Bluetooth Transmission (5.0): AAC, SBC, aptX, aptX HD, LDAC, LHDC
• Bluetooth Reception (5.1): SBC, AAC, aptX, aptX LL, aptX HD, aptX Adaptive, LDAC
• FIIO Link: Android supports WiFi and Bluetooth control; iOS supports Bluetooth control
• HDMI Decoding: Supports audio decoding for DVD/set-top box/computer
• HDMI ARC: Supports audio decoding for devices with ARC function
• HDMI I2S: Supports audio decoding for devices with I2S input
• All to DSD: Supported
• EQ Adjustment: 10-band dynamic EQ adjustment (±12dB), built-in 8 preset EQ, supportself-defined EQ
• MQA: Supports full decoding
• Operating Mode: Supports gesture navigation, two-button navigation, and three-button avigation

• Max supported sampling rate:
• USB DAC: Up to768kHz/32bit; DSD512 (Native)
• Native decoding: Up to384kHz/32bit; DSD256 (Native)
• USB Audio: 768kHz/32bit; DSD512 (supports DoP/D2P/Native)
• Coaxial in decoding: Up to192kHz/24bit
• AES in decoding: Up to192kHz/24bit
• Optical in decoding: Up to96kHz/24bit
• Coaxial out: Up to384kHz/24bit; DSD128 (D2P/DOP)
• AES out: Up to384kHz/24bit; DSD128 (D2P/DOP)
• Optical out: Up to192kHz/24bit
• HDMI in: Up to192kHz/24bit
• HDMI out: Up to192kHz/24bit

• Bluetooth codec indicator (knob indicator light):
• Blue: SBC
• Cyan: AAC
• Purple: aptX/aptX LL
• Yellow: aptX HD
• White: LDAC
• Green: aptX Adaptive
• Orange: LHDC

• Sampling rate indicator (knob indicator light):
• Blue: Lossy
• Cyan: SQ
• Yellow: HR
• Green: DSD
• Magenta: MQA

• Screensaver: Supported
• Double tap to wake up: Supported
• Firmware upgrade: Supports upgrade through local storage+microSD card+OTA

Power Supply Parameters:

• Power Supply: Supports AC 110~120V / 220~240V 50/60Hz; 230V and 115V input level switch

Audio Parameters:

Performance and Parameters of Pre XLR Out (XLR3 Out, USB DAC/Optical/Coaxial/AES Decoding):

• THD+N: <0.00023% (1kHz/0dB@10KΩ)
• SNR: ≥131dB (A-weighted)
• Crosstalk: ≥126dB
• Noise Floor: <2.6uV (A-weighted)
• Frequency Response:
  • 20Hz~70kHz: attenuation<2.8dB
  • 20Hz~20KHz: attenuation<0.3dB

• Line Output Level: 8.9Vrms

Performance and Parameters of Pre RCA Out (RCA Out, USB DAC/Optical/Coaxial/AES Decoding):

• THD+N: <0.00026% (1kHz/-0dB@10KΩ)
• SNR: ≥128dB (A-weighted)
• Crosstalk: ≥120dB
• Noise Floor: <1.8uV (A-weighted)
• Frequency Response:
  • 20Hz~70kHz: attenuation<2.8dB
  • 20Hz~20KHz: attenuation<0.3dB

• Line Output Level: 4.5Vrms

Performance and Parameters of XLR Out (XLR3 Out, USB DAC/Optical/Coaxial/AES Decoding):

• THD+N: <0.00026% (1kHz/-0dB@10KΩ)
• SNR: ≥126dB (A-weighted)
• Crosstalk: ≥120dB
• Noise Floor: <2.5uV (A-weighted)
• Frequency Response:
  • 20Hz~70kHz: attenuation<2.8dB
  • 20Hz~20KHz: attenuation<0.3dB

• Line Output Level: 4.8Vrms

Performance and Parameters of RCA Out (RCA Out, USB DAC/Optical/Coaxial/AES Decoding):

• THD+N: <0.00027% (1kHz/-0dB@10KΩ)
• SNR: ≥122dB (A-weighted)
• Crosstalk: ≥117dB
• Noise Floor: <1.8uV (A-weighted)
• Frequency Response:
  • 20Hz~70kHz: attenuation<2.8dB
  • 20Hz~20KHz: attenuation<0.3dB

• Line Output Level: 2.4Vrms