| Test | [DirectSound] ASUS Xonar D2 Audio | [DirectSound] SoundMAX HD Audio |
| Frequency response (from 40 Hz to 15 kHz), dB: | +0.08, -0.05 | +0.02, -0.06 |
| Noise level, dB (A): | -117.2 | -89.5 |
| Dynamic range, dB (A): | 117.1 | 89.1 |
| THD, %: | 0.0007 | 0.0093 |
| IMD + Noise, %: | 0.0007 | 0.014 |
| Stereo crosstalk, dB: | -115.3 | -85.9 |
