RightMark Audio Analyzer test report
| Testing device | iPod Touch 4G -> Fostex HP-P1 Gain 1 Filter 2 |
| Sampling mode | 16-bit, 44 kHz |
| Interface | |
| Testing chain | Triple.Fi 10 |
| RMAA Version | 6.2.3 |
| 20 Hz - 20 kHz filter | ON |
| Normalize amplitude | ON |
| Level change | 2.2 dB / 1.8 dB |
| Mono mode | OFF |
| Calibration singal, Hz | 1000 |
| Polarity | correct/correct |
Summary
| Frequency response (from 40 Hz to 15 kHz), dB | +1.98, -4.47 |
Poor |
| Noise level, dB (A) | -93.0 |
Very good |
| Dynamic range, dB (A) | 92.9 |
Very good |
| THD, % | 0.085 |
Average |
| THD + Noise, dB (A) | -58.9 |
Poor |
| IMD + Noise, % | 0.025 |
Good |
| Stereo crosstalk, dB | -73.7 |
Good |
| IMD at 10 kHz, % | 0.043 |
Good |
| General performance | Good |
Frequency response
| From 20 Hz to 20 kHz, dB | -4.47, +1.98 |
| From 40 Hz to 15 kHz, dB | -4.47, +1.98 |
Noise level
Left |
Right |
|
| RMS power, dB | -90.5 |
-90.5 |
| RMS power (A-weighted), dB | -92.9 |
-93.0 |
| Peak level, dB FS | -76.9 |
-76.9 |
| DC offset, % | -0.0 |
-0.0 |
Dynamic range
Left |
Right |
|
| Dynamic range, dB | +90.4 |
+90.5 |
| Dynamic range (A-weighted), dB | +92.9 |
+92.9 |
| DC offset, % | +0.00 |
-0.00 |
THD + Noise (at -3 dB FS)
Left |
Right |
|
| THD, % | +0.0876 |
+0.0823 |
| THD + Noise, % | +0.0878 |
+0.0826 |
| THD + Noise (A-weighted), % | +0.1171 |
+0.1094 |
Intermodulation distortion
Left |
Right |
|
| IMD + Noise, % | +0.0271 |
+0.0233 |
| IMD + Noise (A-weighted), % | +0.0121 |
+0.0112 |
Stereo crosstalk
Left |
Right |
|
| Crosstalk at 100 Hz, dB | -65 |
-66 |
| Crosstalk at 1000 Hz, dB | -73 |
-73 |
| Crosstalk at 10000 Hz, dB | -46 |
-46 |
IMD (swept tones)
Left |
Right |
|
| IMD + Noise at 5000 Hz, | 0.0406 |
0.0446 |
| IMD + Noise at 10000 Hz, | 0.0406 |
0.0446 |
| IMD + Noise at 15000 Hz, | 0.0406 |
0.0446 |