| Test | H120 hp out, cmoy, E2C 10/40 | H120 hp out, Shure E2C (16 ohm) vol 10/40 |
| Frequency response (from 40 Hz to 15 kHz), dB: | +0.15, -0.04 | +0.06, -0.16 |
| Noise level, dB (A): | -65.2 | -65.7 |
| Dynamic range, dB (A): | 64.9 | 65.7 |
| THD, %: | 0.019 | 0.352 |
| IMD, %: | 0.181 | 1.201 |
| Stereo crosstalk, dB: | -63.1 | -40.3 |