I have a kicker sx 400.2 now i set it on memory 2 manual say to set there for a sub.Now amp has very very little bass out put and ideas to what is wrong sub is good.
4 ohm bridged but i got her working just had to crank the radio up more.Seems for what kicker said the sx amps are better on a vented box because of the filter.Also i think i have to boost the gain just a tad
and i had to readjust the whole amp change the slope/freq-high pass with the help from kicker.Some of those guys you call and talk to they don't seems to help you out they say leave it go where it is at.I talked to a different guy dan i think it was he said no adjust the high pass the slope then lo-pass freq/slope and fine tune it from there the pink noise is nice for setting up a amp also