How many watts is the sub and how many ohms is it....How many watts is the amp....If it is only one sub u are using, bridge the sub by placing the right and left on the same side together...that gives u full power from the sub.....for instance twist both wires together and place them on either the left channel or the right channel...ur amp should have a left or right positive or negative with a circle on it to let u know thats where the bridged wires go....
