Installed this amp with 2 -12" kicker subs and found that it will cut out on certain songs when the lower frequency hits. Thought it was needing more power so hooked up a 3 farad capacitor and still having the issue. I have the speakers bridged and have messed with both the frequency and the gain but get the same results. It doesn't cut out when turning down the gain but then I lose the desired bass. Something not hooked up right or is the amp possibly bad?
The tuning frequency may be wrong. Or the box frequency. At the low end frequencies, when you set the subwoofer to the lower end frequencies, enough power is needed to get to the subwoofer. Crossovers, did you use the correct crossovers? The wiring to the speakers may be loose. Subwoofers to the amps. Speaker outputs. Pre-amp output cables may have loosened or even faulty. The recommended guide to use for each amplifier and cables used should have been suggested by the manufacturer. So use those suggested cable, wiring gauges #.