i sell car audio for a living
what is your price range and how loud do you want your system
i am currently running 2500w to a audio que hd12 and i cant even see when i turn it up
ive had the pleasure of running almost every good spl sub imaginable and for the $$ i would have to say resonant engineering is the best follwed by brands like incriminator, adire, beyond audio, memphis, eclipse, digital designs, AQ, fusion ect ect