Mike,
If you had a scope and looked at any waveform coming out of the amp you will see the 500K switching noise riding along. ALL class D amps have this. Is it audible.....maybe not....does it look gross. yes.
You think everything is an attack, that is your problem. I was just describing (very fairly) your behavior (past and present). I mean you no harm. I hope you can take the feedback and grow up. If not, then wherever you go the same story will ensue. You cannot keep doing the same behavior and expect different results.