The bass in the V3's are more boomy in the sub-bass, it creates a more "fun" sound. The soundstage is smaller than the MD's, but still very good. V3's have the same 3D feeling as MD's, but they sound a bit more intimate. I would say that the V3's are a bit more fun sounding, while I feel the MD's are a bit more accurate in the frequency representation. Both are great sounding for their asking price though, and I wouldn't live without any of them.