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Opinions on using waveguides as surrounds - Page 2

post #31 of 34
3/27/12 at 2:28pm
8" deep is not too bad. Thanks for the update.
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post #32 of 34
6/16/12 at 4:19am
Can you guys update us on where you got to with the surround project using the SEOS 12?

I'm very interested in this - and particularly so if I can sink the enclosure into the wall to reduce the protrusion of the box into the room.

GRBoomer and I are perhaps thinking along the same lines in regards to this.

In addition to using the SEOS 12 for surround duty, I imagine that it's also OK to be used for heights.....but perhaps angled down a little to reduce ceiling reflections.
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post #33 of 34
6/16/12 at 4:34am
Quote:
Originally posted by Coctostan

I'd also suggest using something like a SEOS-12 and 10" woofer combination instead of a 12 or 15" woofer because it will give you a closer CTC spacing and allow for wider null angles with the same crossover point. Something like Bwaslo's recent design in the SEOS thread might work well since it is a 10" woofer and a 1200hz crossover. That should space the nulls very wide which is more important in a surround than in a LCR speaker.


I take your point as regards surrounds......I'll be using JBL 2123H's which are 10" drivers. They could match up well to the SEOS 12 with a Denovo 350.

What about height speakers? I want to use JBL 2206H's (12") because they closely match my 2226H LF main drivers......although I'm not sure how concerned I ought to be about this whole timbre matching thing...
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post #34 of 34
6/18/12 at 3:47am
Quote:
Originally Posted by Kwikas View Post

Quote:
Originally posted by Coctostan
I'd also suggest using something like a SEOS-12 and 10" woofer combination instead of a 12 or 15" woofer because it will give you a closer CTC spacing and allow for wider null angles with the same crossover point. Something like Bwaslo's recent design in the SEOS thread might work well since it is a 10" woofer and a 1200hz crossover. That should space the nulls very wide which is more important in a surround than in a LCR speaker.
I take your point as regards surrounds......I'll be using JBL 2123H's which are 10" drivers. They could match up well to the SEOS 12 with a Denovo 350.
What about height speakers? I want to use JBL 2206H's (12") because they closely match my 2226H LF main drivers......although I'm not sure how concerned I ought to be about this whole timbre matching thing...
JBL 2123's are a mid and I wouldn't run them very low. I've had lots and lots over the years - I used then in my PA and at home. Nice driver, I only sold them after I got my TD10M. My surrounds will use these and a 15" below (3 way).

I'd use the 2206 for the surrounds myself, especially if a 2 way. Not interested in heights myself, so unsure what to suggest, but if I were going to compromise somewhere, the heights would be it over the surrounds, ie surrounds more important.
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