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Old 24th October 2004, 02:54 AM   #1
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Default Center Channel

I was hoping to get some feedback for a design I have been working on. It's a center channel speaker for my home theater. Attached is a sketch of the front baffle and the crossover I was thinking of using. It's a horizontal MTM using two of the new Dayton Reference 6" RS150S-8 and a Seas 27TDFC tweeter. The enclosure is approximately 1ft^3 (28L) tuned to 48Hz. I'd particularly be interested in feedback on my crossover as I have very little experience designing passive networks.
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Old 24th October 2004, 02:55 AM   #2
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Here is the xover...
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Old 24th October 2004, 12:35 PM   #3
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The biggest problem with centers is the usual side by side driver mounting, often required by the space available. Your box would do much better if the midbasses were mounted with their frames touching and the tweeter mounted above instead of in between.
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Old 24th October 2004, 11:25 PM   #4
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Default Is beaming a desirable quality for center channel??

Personal Experience: For a center channel, some beaming is desirable.

Large diameter coaxial drivers have sounded best for center channel.

Started with old Jenson Tri-axial. Current center is Lambda TD15S with a coaxially mounted Seas Millenium, LR6 @1000Hz. Trim Millenium front plate, metal tripod coaxial mount in front of TD15S
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Old 25th October 2004, 04:21 AM   #5
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Motion, you have a dedicated theatre don't you? In this case you could make it a tower speaker and orient it vertically. From a looks point of view, I think it would look better if it were a bit less chunky - longer in the longest dimension and not as wide.

If it MUST be oriented horizontally then perhaps you should consider:

* 3 way with a small midrange with a tweeter above
* a coax driver like the 6.5" seas with a matching midbass next to it
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Old 25th October 2004, 10:02 PM   #6
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I understand the driver positioning isn't optimum. I was hoping to get some comments of enclosure size/tuning frequecy and especially the crossover design. Any ideas or comments regarding those?
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Old 26th October 2004, 01:48 PM   #7
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why not make a 2.5-way design with the same units and configuration. You do not have the problems of a normal horizontal MTM, and still have the looks of a normal center. Also, you don't need to make a baffle step compensation circuit

I still prefer the vertical MTM...
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