I have a apline amp with two 12s (kenwood) They are nice. My only recommendations are don't try to save money on subs. Again you get what you pay for. Secondly make sure settings are flush. don't want to blow out subs when you first get them. thirdly. wiring kit. I truely believe this is what sets it apart however you don't need the $200 ones. a solid $75 will be fine. Also unless you are truely experienced with your car... pay the money to get them installed. I had to replace head unit and do all wiring. Hardest part is getting the wiring through the "fire wall" in the car. (seperates engine from interior.) This took me all day so I would certainly recommend making sure you get it done right.