adjusting the mtx 801d
reset your HU (all bass/treble to 0 and EQ's to flat) and then turn all your gains and bass eq's on the amp to there lowest position. turn the volume on the HU up about 3/4s of the way, then slowly increase the gain and bass EQ on the amp (some will tell you not to use the bass EQ, but i find it's best to do so).
when you hear distortion, back the controls up just a little bit on the amp and then listen a bit more and make sure you hear no more distortion. if you hear no more, that's a good MAX point to set your gain and bass EQ. otherwise, if there is audible distortion at all, clipping is possible.
also set the crossover for the low pass, and keep it at around 80 hz. it's not a brick wall, just a place where frequencies above that point will begin to mellow out.
if you don't have a warranty to cover your sub's ***, it's best to put your amp's gain below the MAX setting i was speaking of earlier. every song is different and plays differently, so i'm sure you'll play some songs that hit a little harder, possibly causing more distortion.


