how should i set my amp gains?

get a dmm. set the dmm to read volts, stick the positive dmm lead into the positive channel on your amp, and stick the negative dmm lead into the negative channel on your amp. turn your HU to 3/4 volume, play a 60 hz test tone and turn your gain upwards until you read 38.7 volts on your dmm. and then plug your speaker wires back into the amp. and if that is too much power for your sub then turn it down from there

 
get a dmm. set the dmm to read volts, stick the positive dmm lead into the positive channel on your amp, and stick the negative dmm lead into the negative channel on your amp. turn your HU to 3/4 volume, play a 60 hz test tone and turn your gain upwards until you read 38.7 volts on your dmm. and then plug your speaker wires back into the amp. and if that is too much power for your sub then turn it down from there
Dont listen to this guy, he knows nothing and is misinforming you. You want it loud right, well me and crx know whats up homie jeeeeeeeeeeee

 
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