Posted this also as a reply to another thread, but starting a new thread as well, since so many people having issues with the ML system. Someone posted this on the Lexus LH forum, and to my untrained ear, it really helped a lot. Also, bass hasn't cut out since I tried this. Sound improvement is especially noticeable at mid/low volumes. Sound is subjective, but maybe worth a try to see if it helps. Doesn't fix the underlying issues, but I'll take any improvement I can get. I don't have the bass up quite as high, my settings are maybe 80% bass, 40%mid, and 20% treble, sound faded one click back from centered. Seems silly, but sounds better and no bass cut out so far at least.