>>The m2i was reviewed by soundstage to dodge deep bass, while the m3ti tried to do some deep bass(using a bass woofer and all), which left room for distorted bass at high volumes. The m2i would be better for a situation without a crossover, since it would not muck up as bad with high volumes in the bass area.
Agreed, but even the M2 really benefits from filtering out the bass. The woofer cone doesn't flap around as much as with an M3 but filtering out the bass still makes a big difference in terms of the SPL you can reach without sounding strained.
Ask me how I know... ignore the dog :
The 12db/8va high pass in the PSB sub never really cut it... but the 24db/8va high pass in the HK630 really lets the M2s sing.
The difference when playing rock at a reasonable SPL in a medium sized room (13x23x8) was quite significant. In a smaller room there was no problem running "full range" M2s plus a sub.