I got this amp in 'fried' condition from a friend many years ago. I finally managed to get it working,and I've been using it for my subwoofer amp ever since,probably about 10 years now? It's not the greatest amp,but it has served me very well on sub duty.
It claims to be 200W per channel, and bridgeable to 400W. It might
even pull that off,on a good day.
Anyways,I had some very poor scans of the schematic for this amp(which I later discovered was almost identical to a 4 channel Rockwood amp.) I managed to re-draw the basics,and thought I'd post it up for the forum to check out.
I've been thinking of taking this amp to the bench to do some tests,and maybe some tweaks. I'm all ears if anyone has any thoughts?
Here's a link to the redrawn schematics,I might put the original scans in there also.
Some component values are missing,I was going from memory,and what I could make out from the original scans.
MA-9400 pictures by Nothing40 - Photobucket