I wouldn't say way too small. With properly sets gains and a clean source I could easily see 500w making an M6 12" sound good. Mine sounds pretty good to me off of 600w. Will they take more? Certainly. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif And like it. But I wouldn't agree that 500w is completely inadequate. Besides - blowsoot has a 10" not a 12".500x1@2ohms is way too small for an M6 12"look for more like 800w