| Test | [MME] 1-2 (QUAD-CAPTURE) | [ASIO] US-322 / US-366 |
| Frequency response (from 40 Hz to 15 kHz), dB: | -0.23, -0.32 | +0.05, -0.10 |
| Noise level, dB (A): | -88.8 | -91.6 |
| Dynamic range, dB (A): | 89.0 | 91.3 |
| THD, %: | 0.0045 | 0.0022 |
| IMD + Noise, %: | 0.011 | 0.0079 |
| Stereo crosstalk, dB: | -80.5 | -87.6 |