FiiO S15 Audio Streamer Unveiled at CES 2025

CES 2025 is upon us, meaning plenty of tech announcements ahead. FiiO has kicked things off with three different products, but we're very excited by the FiiO S15. This is the Chi-Fi brand's first full-size audio streamer, following its well-received compact FiiO R7 and R9 offerings.

Equipped with an AK4191+AK4499EX DAC setup that separates the digital and analogue portions, an M.2 hard drive slot (up to 2TB) in the undercarriage and custom FiiO technology like digital audio purification system (DAPS) for a cleaner sound without jitter, the S15 looks like it will be a strong contender against established streamer companies like Eversolo (who also revealed a new model at CES), WiiM and Bluesound.

The S15 has dual ultra-low phase noise femtosecond oscillators from ACCUSILICON for precise digital output that isn't affected by phase noise. The fully balanced analogue audio architecture inside helps reduce crosstalk and interference, with physical separation between the analogue, digital and power sections. There's a large 7.84-inch colour display for information, and the unit runs on a Snapdragon 660 processor powered by a 35W low-noise linear power supply.

With Bluetooth 5.1 and support for codecs such as SBC, AAC, aptX, aptX HD and even LDAC and LHDC, high-res streaming will be possible if receiving devices support it.

There are plenty of connectors on the rear, with options such as optical, coaxial and HDMI inputs alongside digital coaxial, optical and HDMI outputs. If used as a USB-DAC, the streamer will support up to 768kHz / 32bit and native DSD512.

For coaxial and AES out, audio will be limited up to 384kHz/24bit; DSD128 (D2P/DOP). Meanwhile, the S15 will support up to 192kHz/24bit for optical and HDMI out.

Aside from being Roon Ready, the FiiO S15 also comes with Apple AirPlay 2, Spotify Connect and other streaming services.

Priced at US$999 / £999 / ​€1.000, the FiiO S15 is slated for release in late January 2025.

Visit FiiO for more information