is there a big difference between 2.2v and 4v preamp would i have to set my amp to 2.2v gain or can i turn it up more because that is kindof low
sittin sideways
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Preamp? u mean preout? Higher preout voltage sends a stronger and clearer signal to ur amp. Set your gains according to your head unit, if its 2.2 setit to dat..if its 4.0 set it to dat. Improperly setting gains can damage ur amps & speakers.