RightMark Audio Analyzer test report
| Testing device | iPod Touch 4G -> Fostex HP-P1 High Gain 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 / 2.1 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) | -92.5 |
Very good |
| Dynamic range, dB (A) | 92.5 |
Very good |
| THD, % | 0.086 |
Average |
| THD + Noise, dB (A) | -58.8 |
Poor |
| IMD + Noise, % | 0.027 |
Good |
| Stereo crosstalk, dB | -73.2 |
Good |
| IMD at 10 kHz, % | 0.042 |
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 | -90.3 |
-90.3 |
| RMS power (A-weighted), dB | -92.6 |
-92.5 |
| Peak level, dB FS | -75.5 |
-66.5 |
| DC offset, % | -0.0 |
-0.0 |
Dynamic range
Left |
Right |
|
| Dynamic range, dB | +90.3 |
+90.2 |
| Dynamic range (A-weighted), dB | +92.5 |
+92.5 |
| DC offset, % | +0.00 |
+0.00 |
THD + Noise (at -3 dB FS)
Left |
Right |
|
| THD, % | +0.0846 |
+0.0870 |
| THD + Noise, % | +0.0849 |
+0.0872 |
| THD + Noise (A-weighted), % | +0.1132 |
+0.1156 |
Intermodulation distortion
Left |
Right |
|
| IMD + Noise, % | +0.0267 |
+0.0267 |
| IMD + Noise (A-weighted), % | +0.0119 |
+0.0122 |
Stereo crosstalk
Left |
Right |
|
| Crosstalk at 100 Hz, dB | -65 |
-65 |
| Crosstalk at 1000 Hz, dB | -73 |
-72 |
| Crosstalk at 10000 Hz, dB | -46 |
-46 |
IMD (swept tones)
Left |
Right |
|
| IMD + Noise at 5000 Hz, | 0.0403 |
0.0443 |
| IMD + Noise at 10000 Hz, | 0.0403 |
0.0443 |
| IMD + Noise at 15000 Hz, | 0.0403 |
0.0443 |