FiiO S15
Image source — © FiiO
What is it?
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Model name
S15
Conversion type
N/A
Engine
AK4191+AK4499EX
DSD compatability
N/A
Parameters
N/A
Frequency response low +/- 3dB (Hz)
N/A
Frequency response high +/- 3dB (Hz)
N/A
Gain (dBu)
N/A
Output Level (balanced) (V)
N/A
Output Level (single-ended) (V)
N/A
Input Impedance (balanced) (Ω)
N/A
Input Impedance (single-ended) (Ω)
N/A
Output Impedance (balanced) (Ω)
N/A
Output Impedance (single-ended) (Ω)
N/A
Analog outputs
N/A
Signal to Noise Ratio (dB)
N/A
Total Harmonic Distortion + Noise (% at 22 kHz)
N/A
Dimensions (mm)
N/A
Weight (kg)
N/A
Official link
Digital Streaming with Comfort and Quality
Our new buyer's guide and equipment rating is visited by full (with a digital-to-analog converter) streamers or network players. The number of these components is growing day by day, which is why the selection turned out to be interesting - from inexpensive models to High-End class mastodons.
How to Choose a Network Player in 2025
When it comes to a modern Hi-Fi audio system based on a digital sound source, you can’t do without a network player or audio streamer, usually with a built-in digital-to-analog converter. These devices offer amazing flexibility of connection (both streaming clients of well-known services and wireless signal transmission options are “on board”), and their sound quality has advanced greatly in recent years. So much so that even relatively budget devices paired with an integrated Hi-Fi amplifier and acoustics can provide excellent sound quality. Our new rating or hit parade contains just such modern audio streamers.
FiiO has introduced the S15 model - a digital music streamer (network player) and DAC with a high-quality analog section and a balanced XLR output. FiiO S15 can also be used as a preamplifier, which allows you to connect the player directly to a power amplifier or active loudspeakers.
The QX13 uses low-noise ES9312 stabilizers and four integrated INA1620 chips to minimize interference between channels. Two OPA1692 amplifiers are responsible for stable dynamics even under heavy load. Supports PCM up to 32 bit/768 kHz, DSD512 and full MQA decoding.
Digital-to-analog conversion is implemented on two AK4497S chips from the Velvet Sound series by the Japanese company Asahi Kasei. The dual mono configuration provides a fully symmetrical and differential analog path. The analog and digital parts of the circuit, as well as power supplies, are located on separate boards.
Desktop DAC and Headphone Amplifier FiiO K17 offers Flagship AKM AK4191 + AK4499EX x 2 DAC, 31-band high-precision lossless PEQ, discrete class AB transistor current amplification headphone amplifier and streaming functionality.