The M5 and M100v4 give me good low end wow factor even at lower volumes. The actives are miles ahead in that regard.

M2s with a sub may actually be better in that small space than larger speakers. Bass control is much easier with an M2/sub set-up. I'll hopefully be getting my M2s soon and can give you better guidance.

House of the Rising Sone
Out in the mid or far field
Dedicated mid-woofers are over-rated