does anyone know the exact specs on the PPI pc2150??? and how do i tune it? i am currently running 1 kicker L5 10 (single 4ohm) in the prefab kicker ported truck box in a dodge ram single cab. i have no idea how to properly tune the amp because it does not have a frequency response control. also i am probably going to get a second sub so will the amp be able to properly push both subs?