I can drive the M80v2 to 110dB and M3v4 to 105dB at 3' distance. Beyond those levels, I detect distortion with my Onk and dynamic compression. I sit 11' away and those levels are too loud for me (I had earmuffs on). The M3v4 sounds better than the M80v2 and just as full. It really is freaking amazing! If you can't afford the money or space for the M5HP, you can set up a great A/V system with the M3v4 and an EP500. An EP350 may even be enough. But once you hear the M5HP, you just can't go back to the M3. You don't even have to listen critically to hear the difference. These speakers put Totem, Polk, Klipsch, KEF to shame - they are audiophile quality with wide, deep, tall and accurate soundstage, sharp images and micro and macro dynamics. My ADA-1000 feedback will be coming soon.

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