i've got a ppi 900.4 driving an infinity kappa 100.9w @ 450w in a ported box. i have the gain set somewhere in the 70% range, though it's hard to be very precise in percentages since there are no dials on the amp.
in general it sounds good, but if i put some heavy bass rap in there i have a lot of rattles. i've been trying to figure them out but notice the sub itself seems to rattle on low notes, it sounds a bit like a fart. basically something sounds like it is flapping around. i can't figure out what the problem is and the sub is new so i wouldn't think it would be bad (although could see being wrong on this). thanks for any help.
in general it sounds good, but if i put some heavy bass rap in there i have a lot of rattles. i've been trying to figure them out but notice the sub itself seems to rattle on low notes, it sounds a bit like a fart. basically something sounds like it is flapping around. i can't figure out what the problem is and the sub is new so i wouldn't think it would be bad (although could see being wrong on this). thanks for any help.