hpf and setup

[italianlifter17 10+ year member]

ok, on my headunit i have the high pass filter set to 120 and the lpf off, is this good or should i have lpf on too, and i also have my headunit on band 1 should i switch it to a different band.

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[KaeZoo 10+ year member]

Are you using a subwoofer? Usually, the LPF filters the signal going to the subwoofer output, and the HPF affects the front and rear speakers. If you're using crossovers on your amplifier(s) then you should turn the head unit filters off.