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In Reply to: RE: Modding Tympani IV- basses? posted by AkuAnkka on December 01, 2014 at 23:39:37
The bass loading scheme has to be symmetrical so the room has to be so as well.
If your space is not rectangular ( ideal proportions are about 1.2-1.4 and 1.6-1.8) then Limage setups are not possible in it. You would be far better off doing an equidistant arc and having a wing set up to jut behind the deep bass panel (should be to the outside). In the equidistant arc you can't have the wings go in front of the bass panel.
If you have the space for it, you can do it in reverse with tweeters to the outside and deep bass panels (and their wings) to the inside. Just make sure the tweeters have symmetrical proximity to sidewalls or are at least 4 feet away from any sidewall. If you could do the placement wall to wall then the ideal distance for the tweeter from the sidewall would be just short of 3 ft.
Follow Ups:
But, theoretically, if an equidistant arc setup is used, is it a bad thing if bass driver would be touching the side wall? Or should there be some free space for basses also?
The issue with one side touching the wall is the loss of symmetry. you can use wings to limit it, and DEQX to adjust for FR and volume differences but there will still be a family of reflections from that side that is not reproduced on the other side. Doable, but not perfectly. Probably an acceptable compromise.
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