Like all of them in general. I know they make some decent subs except for the wal mart ones lol. I own two 12in 1200 watt championship series ones I think. I just wanna know people's opinion on the brand. I have used them along with other brands like rockford and kenwood, and I really don't notice a difference between them. So I just wanna know if I put them in the right box will they sound good or should I go with a different cheap brand?