throttle noise in sub

[AccordArizona89]

well ever sense i took out my system when i left to hawaii and put it back in i can hear the throttle thru the sub. someone was tellin me u need a capacitor or somethin like that? anyone know? thx

[MrBen]

Well for starters did you run the ground wire and power wire and remote seperately? As in on separate sides of the car?

[Vanilla Sky]

you're picking up noise from the alternator, known as alternator whine... make sure your have a better ground, and seperate your line level wires from your power wires... but i thought you could run the power wire and the PTO wire together... anyways, most of the noise is from what i listed up there

[AccordArizona89]

alright thanks sky for the help ill go check it out

[AccordEpicenter]

you need an upgraded battery to chassis ground and a chassis to engine ground. Where is your ground located for the amp? Poor grounding or ground loops cause 99% of the noise, the rest is usually crappy rcas or crappy amp or hu.

[catalin]

Or make sure that there's a low pass xover working somewhere since it will filter out high frequecies. Engine noise (what your hearing) is a frequency higher than your should be reproducing.