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Can CC speaker used as L+R?

post #1 of 10
1/17/11 at 6:10pm
Thread Starter 
New set-up absolutely requires running L + C + R speakers in a horizontal array beneath a projection screen. Typical vertically oriented left and right speakers cannot be used.

Can horizontal CC speakers also be used for left and right speakers without much compromise? I'm thinking of using 3 X Paradigm CC590or Focal CC908 or Thiel SCS4. A Velodyne sub is part of my existing system and will also be used.

Thank you!
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post #2 of 10
1/17/11 at 6:16pm
Yes its possible. Speakers that already do that are refered to as LCR speakers
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post #3 of 10
1/17/11 at 6:18pm
The horizontal MTM is a compromise in design for the purpose of aesthetics. It produces lobing when offaxis, and the severity will depend on the angle offaxis, the driver spacing, and xover point. A better MTM design would be to have the drivers closer together, with a lower xover (which may entail other compromises).

You might look towards WTMW where the lobing between woofers happens low enough where hopefully it becomes inaudible.

You might consider coaxial drivers. The larger driver will act like a waveguide, narrowing your dispersion, but if the speakers are close together, this might not be a bad thing, but I would wait for an expert to talk about that (me, I'm just a hobbyist).

Or the best thing could be to go with an AT screen. If you are handy, the DIY Seymour is very affordable. Very. Now you can have three vertically arrayed speakers on the same plane.
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post #4 of 10
1/17/11 at 6:26pm
Thread Starter 
Quote:
Originally Posted by crazyrob425 View Post

Yes its possible. Speakers that already do that are refered to as LCR speakers

Yes I'm aware of some speakers that are marketed as LCR speakers. But I'm referring to speakers that are not marketed as LCR speakers. Speakers that are specifically marketed as CC speakers. Can these be used as left and right speakers as well as centers?
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post #5 of 10
1/17/11 at 6:29pm
It doesn't matter how they are marketed. With some exceptions, most LCRs and CCs are MTMs and can be applied equally but only if you must.
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post #6 of 10
1/17/11 at 6:30pm
Thread Starter 
Quote:
Originally Posted by jostenmeat View Post

The horizontal MTM is a compromise in design for the purpose of aesthetics. It produces lobing when offaxis, and the severity will depend on the angle offaxis, the driver spacing, and xover point. A better MTM design would be to have the drivers closer together, with a lower xover (which may entail other compromises).

You might look towards WTMW where the lobing between woofers happens low enough where hopefully it becomes inaudible.

You might consider coaxial drivers. The larger driver will act like a waveguide, narrowing your dispersion, but if the speakers are close together, this might not be a bad thing, but I would wait for an expert to talk about that (me, I'm just a hobbyist).

Or the best thing could be to go with an AT screen. If you are handy, the DIY Seymour is very affordable. Very. Now you can have three vertically arrayed speakers on the same plane.

Thanks for informative post. But I'm not familiar with the abbreviations MTM and WTMW.

I cannot go with AT screen as screen is descending over a 60" Plasma which is where the CC would reside. All speakers must be below screen for a variety of factors.

Please come back with more help.
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post #7 of 10
1/17/11 at 6:37pm
Thread Starter 
Quote:
Originally Posted by Kal Rubinson View Post

It doesn't matter how they are marketed. With some exceptions, most LCRs and CCs are MTMs and can be applied equally but only if you must.

I should note that planned use of this arrangement is 100% for movies/TV. Not serious audiophile application.

Conversely can speakers that are typically vertically oriented just be placed on their sides horizontally. (I'm thinking no one will like this idea.)
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post #8 of 10
1/17/11 at 6:42pm
Quote:
Originally Posted by console View Post

I should note that planned use of this arrangement is 100% for movies/TV. Not serious audiophile application.

While I am more concerned with music than with movies, the issue is acoustical: Horizontal arrays, with few exceptions, have narrow and irregular horizontal dispersion.

Quote:
Conversely can speakers that are typically vertically oriented just be placed on their sides horizontally. (I'm thinking no one will like this idea.)

And you would be right.

All that said, there are millions of users who simply do not care enough or cannot hear the issues.
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post #9 of 10
1/17/11 at 6:50pm
Quote:
Originally Posted by console View Post

Thanks for informative post. But I'm not familiar with the abbreviations MTM and WTMW.

I cannot go with AT screen as screen is descending over a 60" Plasma which is where the CC would reside. All speakers must be below screen for a variety of factors.

Please come back with more help.

I got to go now, but before I do, I'll post. MTM is mid tweeter mid, and WTMW is woofer tweeter mid woofer. The tweeter sits above mid.

If you take a vertical MTM (which has the nice intended bonus of reducing floor and ceiling bounce), and put it horizontally, make sure that any waveguide or diffuser is oriented properly. This only requires a screwdriver normally, rotating the tweeter 90 degrees.

In the meanwhile, can you post some pics of the front wall, layout, room?

I want to know WHY this setup must be (I mean, this could turn out to be a truly awful compromise, depending).
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post #10 of 10
1/17/11 at 6:52pm
Quote:
Originally Posted by jostenmeat View Post

If you take a vertical MTM (which has the nice intended bonus of reducing floor and ceiling bounce), and put it horizontally, make sure that any waveguide or diffuser is oriented properly. This only requires a screwdriver normally, rotating the tweeter 90 degrees.

That is possible if one can assume that the tweeter has a waveguide/diffuser. Most do not.
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