I have the M50 and M-80. If you want punch, get the M-80. The M50 does not lack bass at all. Its very good, with bass basically even across the frequency. But that punch you are looking for is awesome in the M-80 due to the midbass hump. In terms of bass the M-80 is more fun. I just got the M50 so I can't give my full opinion, yet.
5/21/13 at 9:30am