i can notice a difference in the background persussion and voice clairity just out my computer speakers. Maybe its cause i have a good ear for music as i have done mixing (Mixdown) n some of my peepz production. .....aint noithin like the wavs(should of got them!) but this CD wasn't really mastered real high. These are actually the lowest bitrates I've ever seen for Tech N9ne. Usualy everythings all high and hard sounding but then again it wasn't mastered by the same kat that does his albums (mayne)!