MTX 8100d MONO BLOCK AMP

Had in my car for a little over a year. Great powerful amp. I Now have an Alpine MRP 2000.
Amp sounds great but if you turn the gain all the way up it will “clip” my speakers. Not sure if it was the speakers or the amp. But the amp works perfect if the gain is slightly less than full gain.

Specs on amp are

1500 WATTS RMS @ 2 OHMS AND 14.4 VOLTS
750 WATTS RMS @ 4 OHMS AND 14.4 VOLTS

WOULD LIKE TO GET CLOSE TO $100 BUT I AM OPEN TO OFFERS.