quantum audio A3000.1 class AB amp we have it now hooked up to some cadence subs in the truck virgil williams rly likes this amp and since its class AB it will be more efficient? im not too great with amps but hey virgil williams is talkin about puttin us on his team team freddys nitemare they have over 300 trophies and some world records been around for over 30 yrs they have a 170+db single sub car and 158 db with 2 12s and 1 amp