No boom in either of my rooms. Just clean articulate & powerful bass with both models. If you are hearing boom then something is just not right.

My M2s + EP400s are driven by a puny 35/Ch Tube Integrated Amp; however, my Tubes plus the twin EP400s give me 500W + 500W + 35W + 35W for a total of 1070W of really clean 2 CH power. If you like tight & punchy, the EP400 has it in spades but not for HT in larger rooms.

It is a very potent system that doesn't look at all large...

TAM

Last edited by exlabdriver; 04/30/15 05:46 AM.