I have a bit of a predicament in trying to choose a pair of front speakers. My setup combines home theater and PC, so my center-channel speaker must be a size that won't inhibit my workspace and view. I have chosen the MartinLogan Motion 8 center speaker, so naturally I chose the MartinLogan Motion 40s for the front and MartinLogan Motion 4s for the rears.
Complicating things, I have the opportunity to purchase a pair of Dynaudio Excite X32s at a very attractive price, for much less than the MartinLogan Motion 40s. I know they are better quality and at this price it is silly not to go with the Dynaudios.
My question is: Will having the MartinLogan Motions inhibit the quality of the Dynaudios by not being voice matched?
Unfortunately, I don't have personal experience with either the MartinLogan Motion 40s or the Dynaudio Excite X32s. However, I currently have in for review a pair of GoldenEar Technology Triton Threes which have a High-Velocity Folded Ribbon (HVFR) tweeter, a driver that is very similar to MartinLogan's Folded Motion Tweeter. I also used to own a pair of Dynaudio Contour floorstanders that had a very similar design to the Excite X32s that you mention. If MartinLogan's Folded Motion Tweeter is anything like the GoldenEars' HVFR tweeter, I think you could be very happy with the MartinLogan system that you've chosen.
Regarding the Dynaudios, you're right to question if it's wise to have the soft-dome tweeters of the Excite X32s flanking the Folded Ribbon tweeter of the MartinLogan Motion 8 center speaker. It wouldn't be a terrible-sounding mix, but it also wouldn't be uniform. An all-Dynaudio or all-MartinLogan setup would probably be the wiser choice in the long run. There's no wrong answer here in terms of quality, so the question then becomes which set of speakers you like better. Good luck! . . . Hans Wetzel