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In Reply to: Re: multi driver reflex posted by Barry on February 8, 2007 at 21:28:37:
I'd abandon the side by side driver notion. Yes, you can eliminate combing if the centers are tight enough, but what you can't eliminate is the narrowing of horizontal dispersion with the widening of the radiating plane. I can't visualize exactly what your topology looks like, do a picture and I could offer a critique. Enough direct radiators can catch up with horn sensitivity depending on how many horns are used. However, if you go to the maximum region of flat power response with both the horns will remain at least 3dB more sensitive than the direct radiators.
Follow Ups:
Thanks for the imput Bill.
"what you can't eliminate is the narrowing of horizontal dispersion with the widening of the radiating plane"Will extending the horn beyond the meeting point a few inches and flaring it out those last few inches? This was an alternative in the experiment.
"I can't visualize exactly what your topology looks like, do a picture and I could offer a critique."
I'll have something up in a few weeks when some better whether come in to build on my porch."Enough direct radiators can catch up with horn sensitivity depending on how many horns are used. However, if you go to the maximum region of flat power response with both the horns will remain at least 3dB more sensitive than the direct radiators."
So the best I could hope for (unless it can be tweaked somehow) is -3 db under fc?
Barry
"So the best I could hope for (unless it can be tweaked somehow) is -3 db under fc?"
No, but since the best you can hope for with direct radiators is about 25% efficiency, while horns can get better than 50% efficiency, if you want to level match a mix of horns and direct radiators you must be sure not to use too many horns.
That is something that I did not know Bill. I have much to learn for sure.Thank you once again for your advice and expertise. It really is, and has been very helpful.
Barry
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