I am about to buy 2 memphisaodiohp 12" subs and a another 500watt amp. I have 1 500 watt amp with 2 12"planet audios125F's. it hits alright but i want some compitition equip or close to it,and i wanted some advice on my best choice for my money.I want to spend no more than $250 per sub. If any...