I had been lstening to a pair of MTM's with upgraded networks for quite some time ( about 2 or 3 months I guess). We were pretty impressed with them, they were paired with a pair of dual 12" servo subs.
Recently we finished off a pair of NX-Tremes and they are now up at Don's place so the Ottica's came back down Here. I've got them paired wit ghe same pair of dual 12" servos.
Now that the Otticas are back in the loop, I honestly feel they are just simply better.... the trade off would be the NQ's are not high passed in the MTm's but that really doesn't seem to make a big diff, it really ends up being in the mid bass region. The pair of Otticas just does the those frequencies much better, those extra 4 woofers that ease the workload of the NQ's make a bigger difference.than the NQ's not being high pased in the MTM's. Clarity and definition in the lower mid bass reginon is impotnat and although I didn't really feel it was missing / lacking with the MTM's, clearly the Ottica's do a better job of reproducing it.
If you don't have the space for the Ottica's and subs, the MTM's are an exeleent alternative, you won't even know what you are missing. But if you have the room , really consider the Otica's.
If you have a large room and love huge sound stages, , the NX-Tremes will be right up your ally. The Ottica's up ast Don;'s paired with the set of triple servo subs was killer but now that the NX-Tremes are in there, the stage they throw is truely impressive and I fully expect them to get better with some time.
All the NX speakers have a similar sound which is to be expected being they share the same tweeter and mid range drivers. All have great off axis response, not a big changes whether one is in the chair or standing. You've also got a pretty narrow baffle width so imaging is very good throughout the lineup