My 12" kicker comp vr 4ohm sub has some kind of rattle or something. What could be causing this

disconnect the amp and do a "pop" test with a 9v battery, it should be clear and no rattle... if it rattles sub is blown

Well, check again for lose wires and make sure it is grounded good and let me know what you find, Make sure you check ALL of the wires.

I will be more than happy to help you when you get back to me on this.

thanks

Well you really can't run both speakers on one term. because you will over heat the amp , unless your amp is rated at twice the capability of your subs , Then if so , Try positive to one sub , then neg. to the other sub , then bridge the remaining positive to the remaining negative terminal , But it is really best to get a two channel amp for your subs !!!

you can find your wiring diagram here
http://www.crutchfield.com/S-lCf6ewrWNQM/learn/learningcenter/car/subwoofers_wiring.html

Select from the list shown which describes your amp and subs (ie 2 channel amp with 2 4ohm subs)

Hope this helps and please rate, thanks

First you need the OHM rating of the subs. Most of the time its on the box or the magnet on the back of the subs (normaly 2ohm 4ohm or 8ohm) And that of the amp. Most amps are 4 ohm output if its a 2channel and 2ohm output if its a mono. You NEED to know these cuz wiring it wrong can blow channels in your amp or cause it to cut "in and out"

For optimal performance there is really only one size for the box .Firstly, you get two different types of subwoofers, an open air, or closed air sub. If it is an open air sub ( hole with mesh in the center of the magnet) no ports are required, and the box should be sealed on the inside with silicone sealant. If it is a closed air sub ( no hole in the magnet) you need a 50mm port about 120mm long. If it is a 12 inch sub the box size will be 13 inches x 13 inches x 13 inches. Hope this helps

2 10" Kicker Comp VR's will run you about $150.00 each new from most dealers a good price for 1 10" should be anywhere from $130 - 160 no more and never less.

$160 -$190 for 1 12 " CompVr

Hello dalex7,

The Kicker 08ZX400.1 would be a great amp for your subwoofer. It will work into a 4ohm load with no problems.

But you can buy an amp with more power, looks better, has a smaller footprint, and cost less than the 400.1. I'd look at the Alpine MRP-M500. Take a look at it here at Crutchfield. The M500 is also easy to install, runs cool, and is very efficient.

Hope this helps.

U need to make sure your subs are wired correctly. And u need to make sure all your speakers are at the same ohm load. If u hook up two subs on one channel and two more on the other one u need to make sure that your subs are all 2ohm or 4ohm subs cause if u got two 4ohm subs ran parrallel then u will have a 2ohm setting and if both of them are 2ohm subs them your load will be a 1ohm load witch could harm your amp unless its an 1ohm stable amplifier.

get a ground loop isolator. and another set of rca's or just run the power wire on the other side of the car let me no if that helps please rate if help full or not