i gave mine 800w and it got to full excursion, you seriously shouldnt need more, after impedance rise, you will loose a few watts. i ran mine off a DEI110D - so if you end up down the road with a pair of DVC4 subs, you can have 1100w@1, and if you stick with the single DVC4 sub, you get 800w@2 (perfect for the RESE)