94civcsi

my sub make noise, like a bump or pop sound, every time i turn my deck on or off. Why does it do this, how do i get rid of it?

imported_loudsubz

your amp is turning on the same time as your deck, you need to put a delay or soft turn on

you can buy devices that do this, but most good decks do it automatically.

imported_Moe_Mentum

damn my deck has the same problem... is it bad for the subs or amp if it does this?

imported_kane2k

Not necessarily bad but it could be depending on your gains. The pop is just random electronic noise generated by a circuit receiving power for the first time. If the pop that you hear is at a level and frequency that would usually come out of the speaker then the speaker is in no danger. The amp shouldn't have a problem with it either since all its doing is amplifying the random signal which its circuitry wouldn't be able to differentiate from a valid(music) signal. If the pop is horrendously loud or the wrong frequency, i.e. your subwoofer shrieks, then its a problem. Other than that, you'll lose some points on your IASCA install card.