For massive sounds, like symphony orchestra or theatre organ, I don't think that the MMG can give you really satisfactory volume. I have three MG1.6, augmented by a six-driver subwoofer system, and I only claim to come close.
MMGs flat with Complex Music
System sounds absolutely fantastic (very smooth, great soundstage, very detailed, and all the other good words reviewers use) with vocals and other non-complex music (like a trio or a small group). However, with a symphony orchestra, it just sounds flat. Almost like it is a different system. Don’t see how the electronics could be an issue: Naim CD5, Conrad Johnson PV12 tube pre, Conrad Johnson MF2500 (250 wpc, rms, both channels driven). Anybody have a similar experience? Am I asking too much from the MMGs? I really like the Maggie sound. Do I need to upgrade to bigger Maggies? Which ones?