I have no idea what a self-oscilating amplifier is, but if it could overcome this major limitation as I saw it then I figured it was worth giving a shot.
Welcome...I think.
I would suggest that you go back and read the threads referred to you by a couple of the more helpful responses.
The things you describe are perfect examples of what happens when you don't listen with level and sight controls.
It is possible that you've had a string of broken equipment, but more likely that you are hearing what your brain decides you really should be hearing, and the next thing you know you're thinking you need to spend $20k for a 'good' amp.
I hope you stick around, so you don't fall further into that hole you're in!
Insisting that you really do hear these things without controls in place is just going to lead to sadness around here.
I hope you aren't a troll, but if you are, maybe take it somewhere else.
Cheers!