have you tried room placement? I had a similar issue with my MG-0.5/QRs (grandfather of MG-12/QR, similar to MMG) until I got them locked into place in my new house. It seemed adjustments in distance from the wall behind them and with the toe-in angle yielded a point to where the symphony orchestra "locked" into proper size and power.
How loud are you playing them? do you have a way to measure SPLs at both the listening position and 1 meter from the speakers? I only ask because the MMG flames aren't as study as the 12QRs and better, so unless you have "120dB" Harry Pearson over, you should be fine. :-)
How loud are you playing them? do you have a way to measure SPLs at both the listening position and 1 meter from the speakers? I only ask because the MMG flames aren't as study as the 12QRs and better, so unless you have "120dB" Harry Pearson over, you should be fine. :-)