Originally Posted by Tarpon
A lot of people lumping all MTM centers into bad as a whole. A properly designed MTM center is not an issue.
Actually, in this case it's the basic design that's (irrepairably) flawed rather than any execution issue.
A toppled MTM will have narrow horizontal directivity, limiting the size of the listening area. It will also have wide-open veritcal directivity, smearing dialogue and other center images with floor and ceiling bounce signals that are similar in amplitude and arrival time to the main signal. See here
for some data on how worthless toppled MTM centers as a class are.
The bottom line is that the toppled MTM is a grossly inferior design to any
other alternative. Any system that employs one does not have high-fidelity as one of its goals. No matter how expensive the tweeter is. Speaking of which, note how they're using the tweeter? Any attempt to control its directivity at the bottom of its passband in evidence? Nope, just a good ol' 180deg horn, i.e. flush-mounted on the baffle. Again, spending less on the parts and more on the design seems like an appropriate recommendation...
I do like the KEF RDM-series knockoff cheekpanels, though.