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Old 25th November 2012, 01:35 PM   #11
Makk is offline Makk  Finland
diyAudio Member
Join Date: Mar 2010
Hello again,
I have now thinked about this project and now I'm pretty sure I must make sealed boxes to achieve the shape I'm hoping for. I made some drawings with pencil and I now have question to ask. EL70 is 71,5mm deep. If box uses 12mm panels spekers is 59,5mm inside the box. Can backpanel be used to support speaker? That would mean, that overall deepness of the box could be 71,5mm + 12mm = 83,5mm. Is this possible?
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Old 25th November 2012, 02:24 PM   #12
Makk is offline Makk  Finland
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Join Date: Mar 2010
And here is a quick picture of my latest idea. Box is about 5,5litres per side.
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Old 26th November 2012, 08:15 PM   #13
Makk is offline Makk  Finland
diyAudio Member
Join Date: Mar 2010
I searched forum for answer, but couldn't find any. Does anyone know answer to my earlier question - can EL70's back be placed against backpanel?
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Old 26th November 2012, 08:21 PM   #14
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Originally Posted by Makk View Post
can EL70's back be placed against backpanel?
Sure. you might well have to fight early reflections off the back panel coming back thru the cone.

community sites,, ........ commercial site planet10-HiFi
p10-hifi forum here at diyA
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Old 27th November 2012, 06:22 PM   #15
Makk is offline Makk  Finland
diyAudio Member
Join Date: Mar 2010
Thank you again!
I think I'll give it a try. When speakers are ready, what would be the best way to test if there is bad early reflections? Or is it a thing I'll hear, if It's badly happening. If this box doesn't work well, I can always take back my old boxes. Now I have to get some information about stuffing.
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