i have a Kenwood KAC-9152D and it is 900 watts rms at 2 ohms and it is 1 ohm stable but idk what it will do at 1 ohm so i wanted a suggeston on a sub either 1 12 or 1 15 i have about 300 to spend on a sub and a box and i want spl but i also have to have some sound quility and i am upgradeing from a kicker 500.2 and jl 12 w0's so i deff want better then that. Any suggestions?