Chess, it is very true that more drivers leads to more realistic vocals and instruments. However, I've found more drivers makes for more difficult acoustic disappearance. The active LFR1100s are the exception with proper spacing and listening distance. Maybe the passive LFRs too but I really don't know.
While my buddy loved the surreal soundstage of the M5s, he was totally seduced by the M100 realism of vocals and instruments. He was willing to trade off acoustic disappearance for better instrument fidelity. If I had no choice, I'd sacrifice some instrument fidelity for acoustic disappearance. Fortunately, with the active LFR1100s, I don't have to sacrifice anything. Not only do I get acoustic disappearance, I get higher instrument and vocal fidelity than the M100 or any other speaker I've heard.
Having said all that, the M100s are certainly no slouch. Canes made them disappear in his room so I suppose it is possible.
