| Test | [DirectSound] ASUS Xonar D2 Audio | [DirectSound] SoundMAX HD Audio |
| Frequency response (from 40 Hz to 15 kHz), dB: | +0.08, -0.05 | +0.04, -0.17 |
| Noise level, dB (A): | -116.3 | -89.4 |
| Dynamic range, dB (A): | 116.3 | 89.1 |
| THD, %: | 0.0013 | 0.0091 |
| IMD + Noise, %: | 0.0012 | 0.014 |
| Stereo crosstalk, dB: | -112.5 | -85.3 |
