| Testing device | FiiO S15 |
| Sampling mode | 24-bit, 44 kHz |
| Interface | |
| Testing chain | XLR OUT |
| RMAA Version | 6.4.5 PRO |
| 20 Hz - 20 kHz filter | ON |
| Normalize amplitude | ON |
| Level change | -0.1 dB / -0.1 dB |
| Mono mode | OFF |
| Calibration singal, Hz | 1000 |
| Polarity | correct/correct |
| Frequency response (from 40 Hz to 15 kHz), dB | +0.01, -0.04 |
Excellent |
| Noise level, dB (A) | -125.6 |
Excellent |
| Dynamic range, dB (A) | 125.0 |
Excellent |
| THD, % | 0.00010 |
Excellent |
| THD + Noise, dB (A) | -108.3 |
Excellent |
| IMD + Noise, % | 0.00062 |
Excellent |
| Stereo crosstalk, dB | -125.0 |
Excellent |
| IMD at 10 kHz, % | 0.00022 |
Excellent |
| General performance | Excellent |
Left |
Right |
|
| From 20 Hz to 20 kHz, dB | -0.08, +0.01 |
-0.08, +0.01 |
| From 40 Hz to 15 kHz, dB | -0.04, +0.01 |
-0.04, +0.01 |
Left |
Right |
|
| RMS power, dB | -124.0 |
-124.0 |
| RMS power (A-weighted), dB | -125.6 |
-125.6 |
| Peak level, dB FS | -88.4 |
-88.4 |
| DC offset, % | -0.0 |
-0.0 |
Left |
Right |
|
| Dynamic range, dB | +124.2 |
+124.2 |
| Dynamic range (A-weighted), dB | +125.0 |
+125.0 |
| DC offset, % | -0.00 |
-0.00 |
Left |
Right |
|
| THD, % | 0.00010 |
0.00010 |
| THD + Noise, % | 0.00036 |
0.00036 |
| THD + Noise (A-weighted), % | 0.00038 |
0.00038 |
Left |
Right |
|
| IMD + Noise, % | 0.00062 |
0.00062 |
| IMD + Noise (A-weighted), % | 0.00027 |
0.00027 |
Left |
Right |
|
| Crosstalk at 100 Hz, dB | -125 |
-125 |
| Crosstalk at 1000 Hz, dB | -126 |
-126 |
| Crosstalk at 10000 Hz, dB | -124 |
-124 |
Left |
Right |
|
| IMD + Noise at 5000 Hz, | 0.00022 |
0.00022 |
| IMD + Noise at 10000 Hz, | 0.00022 |
0.00022 |
| IMD + Noise at 15000 Hz, | 0.00022 |
0.00022 |