Originally Posted by commsysman
I recommend the C6LCR center speaker in general. I find it to have the characteristics that a good center speaker should have. Another really good one is the Cambridge S50.
Some people think a center speaker should be larger; NO!
A center speaker. IMO, must be set to operate only from 120 Hz to 3000 Hz. The best center speakers IMO are those with 4" or perhaps 5" drivers.
You should NEVER get any bass from the center speaker; its role is to give good midrange clarity and that is all!
The iQ60 is not around because it is not very good...lol.
I had the KEF iQ9 speakers in one system at my old house for 5 years or so, and they were excellent; my wife even liked them better than the the T6. The iQ90 is essentially the same speaker with some minor improvements.
It truly boggles my mind
You seem to have been around audio for quite some time, have owned many good speakers, and frequently recommend good speakers...
...and yet you continuously provide this bizarre advice wrt. centre speakers
If one is interested in multi-channel audio, then the best possible system is 5 identical speakers - period. Anything else is a compromise.
If one is only interested in HT then one wants timbre matched front 3, and speakers that are capable of playing the full frequency range they are presented with. And the best way to do this is with three identical speakers across the front.
Do you seem to have some source of information that indicates that all movies ONLY send midrange frequencies to the centre channel?
I am willing to bet large $$$ that many (and quite possibly most) movies send significant amounts of sound to the centre channel that is both above and below the range that you claim "is all that it should" produce. Any system that is unable to produce these frequencies as well, will sound like sh*$#^t
EDIT: I'd go even further and suggest that my front 3 (three iQ3), or what you could do today being 3 iQ30, crossed over to a sub at 80Hz would provide a superior HT experience than a pair of iQ90 with a S50 in the middle - by a long shot