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Writer's pictureAlexander aka KUBIK

FIIO’s Desktop High-Res Audio Streamer S15 Is Officially Released

Professional and Versatile: FIIO’s Desktop High-Res Audio Streamer S15 Is Officially Released!



FIIO has officially unveiled the S15, a state-of-the-art desktop high-res audio streamer designed to seamlessly integrate into your HiFi system. With a standard width of 430mm, the S15 fits perfectly with other living room audio equipment, creating a unified audio setup. Its advanced features and user-friendly controls redefine the capabilities of a media streamer, making it an indispensable component for audiophiles.


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Flagship Configuration

The FIIO S15 is equipped with the highly acclaimed AKM flagship DAC combo - AK4191+AK4499EX, featuring:

 • Separated digital and analog portions for a cleaner signal path.

 • DWA Routing Technology, delivering a more natural, detailed, and unstrained sound.


To ensure exceptional fidelity, the S15 incorporates two ACCUSILICON AS318-B femtosecond oscillators (45.1584MHz and 49.1520MHz), minimizing phase noise for superior decoding accuracy. Paired with high-performance external decoders and amplifiers, the S15 achieves reference-grade sound.


Additionally, its flagship systems include:

 • Qualcomm Snapdragon 660 for powerful processing.

 • Qualcomm Bluetooth QCC5125 for robust wireless connectivity.

 • XMOS 16-core XU316 for optimal stability and seamless performance.

These flagship components, refined over years of development, ensure the S15 delivers an unparalleled audio experience across any scenario.


Comprehensive Interfaces:

The S15 is outfitted with a complete suite of digital and analog interfaces, meeting the needs of diverse audio setups:

 • I2S output, AES input/output, HDMI (input/output/ARC), coaxial input/output, optical input/output, RCA line-out, and XLR balanced line-out.


Every detail of the S15’s design is tailored for optimal sound performance:

 • Digital audio isolation transformers for coaxial and AES outputs rival the performance of optical outputs.

 • NEUTRIK tulip-shaped XLR ports ensure durability and stability.

 • Gold-plated copper RCA connectors and oxygen-free copper internal wiring minimize signal loss for high-fidelity output.


All-in-One Control:

The S15 runs a custom Android 12 OS, complete with a personalized horizontal-screen layout. The 7.84-inch automotive-grade display provides vibrant visuals and intuitive controls. Key features include:

 • Customizable desktop and FIIO Music app for seamless music playback and settings.

 • Visual audio effects, like VU meters, for enhanced user experience.

 • Dual knobs and virtual keys for flexible, intuitive operation.


For remote access, the S15 includes:

 • A Bluetooth remote control for effortless playback and volume adjustments.

 • App-based remote control with dual-screen display, putting full control at your fingertips.

The FIIO S15 delivers an exceptional blend of performance, versatility, and innovation, setting a new benchmark for media streamers. Whether you’re building a high-end audio setup or upgrading your current system, the S15 offers everything you need for a superior listening experience.

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