The RightMark Audio Analyzer suite is designed for testing quality of analog and digital paths of any audio devices, be it a sound card, an MP3 player, a consumer CD/DVD player or an acoustic set. The results are obtained by playing and recording test signals passed through the tested audio path by means of frequency analysis algorithms. The latest version of RightMark Audio Analyzer can be found here.
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Both the ASRock 890FX Deluxe4 and the ASRock 890GX Extreme4 have an audio performance rating of “Good” when the signals are run through Rightmark Audio Analyzer. I am by no means an audiophile, but while listening to some music and games I didn’t hear any static or distortion that I could discern.