i have a max.. d2. its running off my audiobahn A18001DQ (1800x1 @ 1 ohm rms) and with the gain all the way down it distorted and hit past its xmax.. the surround actually dimpled.. at very low volumes it sounded fine, but if i turned it up the slightest bit, it would distort and flip out on me.. so i sent it back and am waiting for it...impatiently!! i am thinking about selling it and buying a brahma.. i dunno, it depends on how it sounds when i get it back. the new v3 sounds pretty nice.. maybe i'll upgrade to that. who knows. the brahma is 1600w rms, so its a lil more suited for my amp. for the time i had my max in my car it was in a custom built 1.6 cube sealed box.. sounded nice, but it was only loud when it was being pushed way too hard.