| Test | Zoom H4 USB Recording Unbal.Gain-Low 16/44 | Zoom H4 USB Recording Unbal.Gain-Low 16/48 | Zoom H4 USB Playback Line-out 16/44 | Zoom H4 USB Playback Line-out 16/48 |
| Frequency response (from 40 Hz to 15 kHz), dB: | +0.18, -0.38 | +0.24, -0.44 | +0.38, -2.76 | +0.30, -1.64 |
| Noise level, dB (A): | -95.0 | -95.5 | -94.9 | -95.1 |
| Dynamic range, dB (A): | 94.7 | 95.4 | 86.8 | 89.3 |
| THD, %: | 0.467 | 0.464 | 0.180 | 0.179 |
| IMD + Noise, %: | 0.385 | 0.383 | 8.780 | 6.370 |
| Stereo crosstalk, dB: | -95.2 | -94.1 | -93.8 | -93.2 |
