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Do I need better center ch speaker-dialog unclear?

I currently have a PSB Image Series C9 center channel. I had though this was a decent enough speaker, but have grown increasingly frustrated. For example, today I was watching the new release of Chariots of Fire that has the DD 5.1 track. Maybe it is just the big echo-y ancient rooms they shot the film in, or maybe it wasn't miked well, but I cannot discern much of the dialog. There are many other movies I have had the same problem with.

Not being satisfied with the intelligibility of dialog in movies, I recently upgraded to a seperate 5-channel power amp, using my Sony DA4ES receiver as pre-amp. I do not use any soundfields or such, just straight DD or DTS. This helped the clarity vere minimally.

This not having helped all that much, I next upgraded the speaker cable to one of Paul Speltz' Anti-cables, which have received great reviews. This, again, may have helped just a tad, but I am still having the same problem with dialog.

I am now down to the point of nothing left, that I know of, other than to consider upgrading the center speaker.

So, does anybody have any other tips short of a new speaker?

If not, can anyone reccommend a significantly better center speaker that would integate at least decently with my Legacy Signature III front mains? I can't now afford to go with one of Legacy's centers.

Thanks in advance for any advice.
mtrot
mtrot OP
804 posts
 
Update 1: About a year ago, I replaced the PSB with a Paradigm Studio Monitor cc570 version 3. This is definitely better and clearer than the PSB. It should be, as it is significantly more expensive. However, we still had a lot of problems understanding dialog in movies.

Update 2: Removed the spade connectors from the Speltz anti-cables, and connected the bare copper. This resulted in a definite increase in clarity. Much easier to understand dialog.

Update 3: Just yesterday took delivery of a single run of Alpha Core Goertz MI-2 speaker cable for the center channel. I also got some of their jumpers to jump down to the LF binding posts of the cc570, whereas with the anti-cables, I was just using the stock jumpers. I have only yet sampled one movie, but there does seem to be a difference from the anti-cables. It seems like there is more "presence" and "air". There seems to be more high frequency response and it is clearer(is that a word?). I do think this addition has improved the clarity of dialog even further.
kkm
124 posts
 
Not sure what's behind your center speaker, but try some damping. Throw a bunch of sofa cushion temporarily to see if that does anything.
mtrot OP
804 posts
 
Thanks,

This system is in the family room, and behind the speaker(which sits on top of the RPTV) there is a painted wall with ceramic plates and other knick knacks mounted. The wall also has "picture frame" paneling, so I'm not optimistic as to the WAF of hanging something on the wall, but I will look into it.
drew_eckhardt
394 posts
 
Presumably, you've calibrated the center channel with a SPL meter?

You have placement problems. Your RPTV is a big, reflective object near the center channel. The wall behind it is a big, reflective object.

Try moving the center channel to a stack of cinder blocks a few feet in front of the RPTV, aimed up at the listener.

You may have other acoustic problems. A coffee table in front of your couch will give you an early reflection from the center channel, especially with it aimed at the listener. You might temporarily move the coffee table or aim the speaker higher. Some people sit far from their speakers in a typical living room; and anything beyond the distance needed for the drivers to integrate (6'?) is just letting the direct sound drop farther below the reverberant field which hurts things. Sitting against the back wall is going to give you problematic reflections (and a bass boost).
undertow
1,033 posts
 
Gotta tell you,, I have found many movies are not mixed that well all the time and the dialog is just killed by the other sounds sometimes even in a calibrated system.. However what I found that really seems to be the culprit in many cases is the match of the receiver or amp to the specific speakers used. I know its weird, but synergy comes into play with surround just as it does with 2 channel. I had an issue for a while with a very underpowered center it seemed. Well I pulled the speaker thinking it was just not efficient enough at lower volumes on movies as I don't listen to them at reference level, which most people do not, but then found I put it on a friends receiver and we were blown away how damn good the center sounded even with some questionable movies that were not always mixed that good. Otherwise you might have to get silly and try to do some type of room treatment or Center position, might have to build a shelf to get it up above the display and this will carry a more airy and clear dialog.
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