| Test | M-Audio FireWire Audiophile | M-Audio FireWire Audiophile 2 |
| Frequency response (from 40 Hz to 15 kHz), dB: | +0.04, -0.05 | +0.04, -0.05 |
| Noise level, dB (A): | -101.3 | -101.5 |
| Dynamic range, dB (A): | 101.0 | 101.0 |
| THD, %: | 0.0013 | 0.0013 |
| IMD + Noise, %: | 0.0041 | 0.0041 |
| Stereo crosstalk, dB: | -98.4 | -99.3 |