Some good advice here, and I agree with Soix -- you need to tell us more about why they aren't involving, if you can put it into words.
As several have said, placement is key. In particular, they want to be out from the front wall behind them -- at least 5', the more the better.
Also, that wall should be reasonably flat so you get a good image.
Agree that the bigger ones are improvements over the MMG's, but you can get much of the way there by mounting your MMG's so that they're standing vertically and raised off the floor, with the driver centered vertically on your ears. Try it with some boxes first. It makes them image like the big ones. Then there are various options for stands. Raising the up and vertical will make them image like the big boys, almost.
Finally, adding the DWM woofer will extend the bass. You have a relatively big room and you may not be getting the low frequency foundation you need. The midbass region in particular is crucial to a sense of heft and involvement.
As several have said, placement is key. In particular, they want to be out from the front wall behind them -- at least 5', the more the better.
Also, that wall should be reasonably flat so you get a good image.
Agree that the bigger ones are improvements over the MMG's, but you can get much of the way there by mounting your MMG's so that they're standing vertically and raised off the floor, with the driver centered vertically on your ears. Try it with some boxes first. It makes them image like the big ones. Then there are various options for stands. Raising the up and vertical will make them image like the big boys, almost.
Finally, adding the DWM woofer will extend the bass. You have a relatively big room and you may not be getting the low frequency foundation you need. The midbass region in particular is crucial to a sense of heft and involvement.