though i have not yet owned one i have on several occassions heard the m33, and i say the sound is quite good for its price, but what wowed me was when i heard it connected to an all exposure set-up, i never thought that a speaker could sound so good, d k na ng nkilala tunog nya e.
personally though ill choose the AE evo3 over the m3 series.
i however have not listened to it in an HT set-up, but i suggest sir, that the best set-up would always be an all the same brand set-up, as different brands do have there own diffrent tonal characteristics, and a halo-halo set-up would only bring out the worse of your speakers.