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Old 23rd March 2005, 04:39 PM   #1
BHD is offline BHD  United States
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Default FE206E efficiency

I'm sure this is common knowledge amongst horn enthusiasts, but how much does putting a driver in a back loaded horn increase efficiency? Specifically, what efficiency will a Fostex FE206E (96db) have in the suggested back loaded horn?
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Old 23rd March 2005, 09:48 PM   #2
BHD is offline BHD  United States
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Bueller... Bueller... Anyone... Anyone?

BTW, I'm planning on building the backhorns with 3/4" birch ply, but of course the plans are in metric. I know the volume of the area behind the driver is pretty important, but are the other dimensions so critical?

Anyone have experience building these using non-metric ply?

http://www.madisound.com/pdf/fostexcabs/206e_encl.pdf
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Old 23rd March 2005, 10:22 PM   #3
Hrappur is offline Hrappur  Iceland
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Default backload

i think you dont have to worry about the conversion so much the important thing is ratio of trought to mouth and if its the same trim-off in the conversion to both then it should be fine.

I was thinking about building the recomended enclosure to until i heard about the HDT from decware. They are easyer to build and well just read the reevues.
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Old 23rd March 2005, 10:56 PM   #4
zobsky is offline zobsky  India
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Default Re: FE206E efficiency

Quote:
Originally posted by BHD
I'm sure this is common knowledge amongst horn enthusiasts, but how much does putting a driver in a back loaded horn increase efficiency? Specifically, what efficiency will a Fostex FE206E (96db) have in the suggested back loaded horn?
a backhorn is essentially a bass horn for the rear wave emnating from the driver to counteract the roll off of the driver

the efficiency in the mids and highs should remain largely unchanged @ 96 dB
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