Alright I am running a Hifonics 1500 watt amp at 1 ohm. I have a two door Cherokee and I am putting in sound deadning right now. Currently I have 1 15" L7 Solo Baric Dual 2 Ohm. I'm now looking to either get 4 12" Type R's or 2 15" Type R's. Which will get lower? I know they are great SQ subs...