Hi!
I found here and old post
http://www.diyaudio.com/forums/full-range/223313-foam-core-board-speaker-enclosures-200.html#post3698230
I think that will be a good idea to make surround speakers mounted on ceiling instead of one ceiling tile that are 2 ft x 2 ft in size. See attached picture.
Other thoughts:
1. To make it asymmetrical so axis will be directed to the couch.
2. Use 4 TC9FD18-08: one for horn core and three others on shorter sides.
Other interesting idea is to use 4 of this Cornu Spiral horns per channel http://www.diyaudio.com/forums/full-range/225622-ever-think-building-cornu-spiral-horn-now-you-can.html
I found here and old post
http://www.diyaudio.com/forums/full-range/223313-foam-core-board-speaker-enclosures-200.html#post3698230
I think that will be a good idea to make surround speakers mounted on ceiling instead of one ceiling tile that are 2 ft x 2 ft in size. See attached picture.
Other thoughts:
1. To make it asymmetrical so axis will be directed to the couch.
2. Use 4 TC9FD18-08: one for horn core and three others on shorter sides.
Other interesting idea is to use 4 of this Cornu Spiral horns per channel http://www.diyaudio.com/forums/full-range/225622-ever-think-building-cornu-spiral-horn-now-you-can.html
Attachments
Keele's paper http://www.xlrtechs.com/dbkeele.com...rint) - Horn Covers Flat Rectangular Area.pdf
I like the idea of the asymmetric Unity - did xrk971 make any asymmetric versions ? how about Patrick Bateman ?
Karlson made a stamped steel ceiling speaker version of his asymmetric projector which fit into a standard square ceiling tile opening, with claims it had a "clam shaped" dispersion pattern - I think they do have a pretty good vertical window. My images for the AP9C ceiling speaker and basic dimensions were dumped by Imageshack. It used a 6" x 9" fullrange speaker and two were meant to replace an array of standard downfiring ceiling speakers plus play in stereo.
imagine the speaker below tilted so the aperture is flush with the ceiling
you could probably make them of foam board, and use higher Q fullrange or car coax without any back chamber assuming mounted "in" a celing.
I think they may need to be proto-typed - I had good luck with an 18" klam and also a 15" version. When using a car coax, it could be advantageous to employ a coax with a centered dome tweeter - then make a K-tube extension for that tweeter to allow the high frequencies to be emitted at the region of the main aperture. That would limit the amount of highs which are bounced around in the front chamber plus improve treble dispersion.
here's my 15" klam with a K-tube shoved into its HF horn - it actually sounds pretty good without the K-tube piping the highs
https://www.youtube.com/watch?v=mupb8X6iZ6I
I like the idea of the asymmetric Unity - did xrk971 make any asymmetric versions ? how about Patrick Bateman ?
Karlson made a stamped steel ceiling speaker version of his asymmetric projector which fit into a standard square ceiling tile opening, with claims it had a "clam shaped" dispersion pattern - I think they do have a pretty good vertical window. My images for the AP9C ceiling speaker and basic dimensions were dumped by Imageshack. It used a 6" x 9" fullrange speaker and two were meant to replace an array of standard downfiring ceiling speakers plus play in stereo.
imagine the speaker below tilted so the aperture is flush with the ceiling
you could probably make them of foam board, and use higher Q fullrange or car coax without any back chamber assuming mounted "in" a celing.
I think they may need to be proto-typed - I had good luck with an 18" klam and also a 15" version. When using a car coax, it could be advantageous to employ a coax with a centered dome tweeter - then make a K-tube extension for that tweeter to allow the high frequencies to be emitted at the region of the main aperture. That would limit the amount of highs which are bounced around in the front chamber plus improve treble dispersion.
here's my 15" klam with a K-tube shoved into its HF horn - it actually sounds pretty good without the K-tube piping the highs
https://www.youtube.com/watch?v=mupb8X6iZ6I
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