Ever think of building a Cornu Spiral horn? Now you can!

Solhaga,
What are the channels made of? Black foam core or is that like vinyl? There are no points for internal beauty as long s it sounds good;) if channels are foam core and cut cleanly, they seal nicely with cheap white glue. They are also stiff in compression and would not require bracing at throat.
I think white glue is to stiff/unflexible and the foam might get loose due to vibrations. Perhaps it would have looked better if the silicone was gray, but I used what I had at home.

The foam you guys are using is hard to come by here in Sweden.
It is considered art material and costs $15 for a 70x100 cm sheet.
The XPS foam floor underlay costs $3 for the same size.
It is rigid enough for the structure, but the innermost curves tends to bend outwards. Hence the braces.
 
well holy cow i was walking through the mall and i saw an "OPENING SOON" sign for a Dollar Tree store. soon i too will have foamcore at LAST!
Nice, I hope they stock it, not all of them do.
hey can we change the name and call foamcore cornu's to cornFu's (the capital F is in praise of foamcore)
No chance man, they are forever known as the Cornucopya, thanks to Ikoflexer.
 
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Ya think?

Man, I have to watch you. Far too sharp for this crowd. :)

I suppose my post was far too lacking in emoticons (again). The sticking-tongue-out was inadequate...

I was trying to go for sarcastic again, but somehow I missed (again).

(Where's the "sarcastic" or "tongue-in-cheek" emoticon when you need it?)
 
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So I finally finished them.

Levelling the front with the speaker:
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2013_02_23-454.jpg


Had to make a fot as they will not be hanging on the wall:
2013_02_23-455.jpg


The bedroom is under recontruction, but you get the idea:
2013_02_23-457.jpg