Is the cadence triplex sub good? the guy at the shop told me it would be killer in my truck. he said it hits harder and louder than any two 10's or twelves. is he just trying to sell it or is he being truthfull. I am asking b/c i have never even heard of cadence untill he opened his shop. if they are good are they worth $320 including a ported box? or should i go with something else?
