So I just put a sub and amp in my beater car, a 93 Town and Country minivan(I know, very gehtto). I threw just about every cd I own in my cd player and was amazed at the lack of low end on most of the albums. In fact the only albums that sounded really fucking good were Opeth's stuff.... I guess when you are mixing a metal album you really don't pay much attention to if it's going to sound good on subs or not but come on.... A few albums have a good kick sound that really hits the sub hard, then there are some that won't even move the speaker at all..... Guess it's time to download some rap uke: