Originally Posted by nightsky87
So, I've been reading around here for quite some time but I finally got around to making an account.
Anyway, I've been trying to dig up information but I can't seem to find anything specific to what I need to know. So allow me to jump into my set-up:
Fronts: Diamond 9.0
Surrounds: WH-DFS (dipole)
Yamaha Presence Speakers: Diamond 9.SR
Receiver: Yamaha RX-V773
Note that all the speakers above are from the Wharfedale Diamond 9 HCP with the exception of the the presence speakers.
I've been using this setup for a few months and I noticed that there are sometimes problems with dialogue clarity. I'm guessing that it's probably because of the small center that I'm using. Are there other possible reasons I should be looking at?
Looking at your options, the 9.cc is a straight MTM design, which is probably the most common, cheapest to implement, and worst configuration for a center channel speaker:
Moving right along the 10CS is more of the same:
The 10CM is a more preferred configuration - a 3 way design with the upper range drivers stacked:
If it is the center, I was thinking of jumping into a large center for future-proofing. For timbre matching, I have access to the 9, 10, and 100 series Diamond centers. The 100 looks like a major redesign though (including the lack of a 3-way in the family). Between the 9 and 10, I was looking at the 9.CM and 10.CM. Will these speakers be too large for my setup or will level adjustment resolve that anyway?
That's hard to predict from a distance, but here's the relevant question - how well is level adjustment working for your current configuration?
If dialogue is a problem, the first thing to adjust is the easiest thing to adjust - the level for the center speaker.
The first question is really "Have you given YPAO a shot?"
If YPAO can't work things out, then: Manual adjustment of speaker levels, particularly the center. However you may also want to turn down the surrounds a bit.
Failing that, there are questions of speaker positioning. Moving your L&R speakers further apart or closer together (if possible) will have some effect. Room acoustics are hard to judge from thousands of miles away, so I can't predict which way will be better, so judgement of any changes is up to you. As you move speakers, reun YPAO and redo any follow-on manual adjustments.
Dialog clarity can also be a problem if the room has strong reflections. Acoustic treatments to deal with that may be in order.
Finally as your last option is the matter of center speaker upgrades. All other things being equal a larger center channel speaker will provide better localization of dialog which will probably be a good thing.