Smaller, and Ill bet more power!!These are small Class D amps, and shell out some Insane Clean Power,from My experience of the 4480.1D American Bass VFL Mini Hybrid,I have 2, and ea is 1ohm stable@2250 rms ea,and They look fantastic, and sound absolutely amazing.ill say, that this is the only amp that I have been happy enough that I actually sat Down My old school Zed made Cheaters.Just My experience,and couldnt be happier.//content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif and Ive been through alot/alot of amps,and always went back to my Zed cheaters, until now.Great amps! Id hit Mylows up on it,or a smaller one for your sub.My amp is supposed to be 1/2ohm stable, though I havent tried them as of yet, but 1ohm is plenty, and stable with plenty of power.More than I anticipated.I would not hesitate in getting one,and close to a TRUE 1000watts for under $200 bucks is insane!