Product type    Network player
DAC
Preamplifier
DAC chip    AK4191EQ+AK4499EX
USB interface    XMOS XU-316
Bluetooth chip    QCC5125
Processor    Qualcomm Snapdragon 660, 4GB RAM+64GB ROM
Operating system    Android 12
Inputs    2x USB-C input
2x USB-A Host input
1x HDMI input
1x AES/EBU input
1x Optical Toslink input
1x Coaxial SPDIF input

1x SSD slot + USB-C
1x SD card slot

WiFi
Bluetooth
Outputs    2x RCA output
1x Balanced XLR output
1x HDMI ARC output
1x HDMI I2S output
1x AES/EBU output
1x Toslink optical output
1x SPDIF coaxial output

Bluetooth
Other connectors    Trigger out
Supported sampling rates    Native Decoding: PCM 32bit 384kHz, DSD256
USB DAC: PCM 32bit 768kHz, DSD512
Coaxial SPDIF and AES/EBU: 24bit 192kHz
Toslink Optical Input: 24bit 96kHz
HDMI Input: 24Bit 192kHz
Supported sampling rates on digital outputs    USB Audio : 32bit 768kHz, DSD512 (support DoP/D2P/Native)
SPDIF coaxiale : 24bit 384kHz, DSD128 (DoP/D2P)
Optique Toslink : 24bit 192kHz
AES/EBU : 24bit 384kHz, DSD128 (DoP/D2P)
HDMI : 24bit 192kHz
Preamplified output level    Preamp RCA : 4.5+4.5Vrms (1kHz @ 10K ohm)
Preamp XLR : 8.9+48.9Vrms (1kHz @ 10K ohm)
Line output level    RCA : 2.4+42.4Vrms (1kHz @ 10K ohm)
XLR : 4.8+4.8Vrms (1kHz @ 10K ohm)
Frequency response    20Hz-70kHz (attenuation <2.8dB)
SNR    ≥ 131dB (A-WT)
Noise floor    LO < 1.8uV (A-WT)
THD+N    <0.00023% (1kHz/0dB @ 10k ohm)
Streaming services and protocols compatibility    DLNA
AirPlay
Amazon Music
Deezer
Qobuz
Roon / Roon Bridge / Roon Ready
Spotify
Spotify Connect
Tidal
Tidal Connect
Web radios
General
Power supply    AC 100-240V 50/60Hz
Dimensions    430 x 274.5 x 89.5mm
Weight    5.65kg
Color    Black
Package    1x FiiO S15 network player
1x Bluetooth remote control
1x 3.5mm trigger jack cable
1x USB-C to USB-C cable
1x HDD cage M.2
1x HDD cage installation screwdriver
1x Mains power cable