You take the number of ripples on the surround, add the number of ripples on the spider(s), multiply it by the diameter of it, and multiply that total by the number of spokes on the basket.
i love cadence as everyone knows but i can find u a solid audio f2500d for 350 shipped with a free eq 2500rms at 1 ohm always good to have extra power.
may sound stupid. but i kinda want to stick with either hifonics or cadence.
also. im not going to be able to buy anything thats on like a bidding site and such. i dont have the money at the moment. although i do have the subs. im looking for the perfect amp.