subs are working but a little bit low need help desperately

[D_roc]

I checked all the speaker wires and pluged them to the correct now the sub is working but not as loud it used to work. before when the bose is in full volume the side mirrors rattled not nothing rattles at all and the bass is a little distored, any one have any idea why this happen my new headunit is a Clarion VRX765VDi need the bass bad so please help me out guysthanksD

also someone told me to unplug the front channel wires one at a time and if the sub got louder change the + and - on that wire is it true?
Modified by D_roc at 10:00 PM 12/4/2007

[davskins97]

Does your head unit allow you to switch the phase of the sub? Mine was like this for such a short time I can't remember if I had separate sub control or not with the Bose adapter.

Otherwise, I would double check your wiring out of the head unit, because it sounds like a phase issue (+- need to be swapped for the sub).

My Bose sub actually got louder when I replace my Bose head unit.

[kzoosho]

Are you talking abotu the factory sub running off of a after market unit? If so you need to feed the sub a low level input not a high level which it is seeing.

[Broadfield]

Yeah, you need to be a little more clear on your story! Did you just have the headunit installed? Are you talking about a OEM subwoofer?