Ever think of building a Cornu Spiral horn? Now you can! - Page 63

xrk971 · 17th February 2013, 05:27 AM

What driver and what size box are you building? Or completely different from base plan?

planet10 · 17th February 2013, 05:53 AM

You aren't getting anything out of me till they are done.

dave

xrk971 · 17th February 2013, 10:53 AM

I see... it's a big seeecret.

looking forward to seeing your creation.

jetlag9 · 17th February 2013, 11:07 AM

@xrk971
I did the 20" and the depth is 4". The bass is quite unbelievable for the size.
@Dave
True. That's what my wife said too. So planning to move it to another wall!!
One small correction though, that is paint, not wallpaper

.

Later
Peace
Jetlag

Cal Weldon · 17th February 2013, 02:54 PM

Quote:

Originally Posted by planet10

Slowly.

that's not fair. The one thing that really keeps this thread on the rails is the speed at which these things are pumped out.

solhaga · 17th February 2013, 05:58 PM

So I built the twin to this one:

but tilted them like Switters. They are now my computer speakers together with a sub.
The E60 sounds great but had to be sealed by the long side of the driver as it bulged there, when I swept the speaker slowly from 50 to 400 Hz I heard distinctive air leakage at certain frequencies.
Also a loose segment in one horn´s end was revealed by the sweep.

Next step is to build some HT satellites. Just need to get them more Waffy.

Cal Weldon · 17th February 2013, 06:01 PM

Nice build. Any pics?

solhaga · 17th February 2013, 06:15 PM

They don´t look so nice right now as they got smudged by the black silicone sealant.
They will end up like Switters´s eventually, I hope.

planet10 · 17th February 2013, 07:43 PM

Quote:

Originally Posted by Cal Weldon

that's not fair. The one thing that really keeps this thread on the rails is the speed at which these things are pumped out.

It cannot be built until it is designed.

dave

Switters · 17th February 2013, 07:57 PM

Quote:

Originally Posted by solhaga

[...]
when I swept the speaker slowly from 50 to 400 Hz I heard distinctive air leakage at certain frequencies.
Also a loose segment in one horn´s end was revealed by the sweep.

Hi solhaga,
I had the same problem, I used vinyl glue to seal the back panel and this leaved some leakage. I tried to seal them pouring some glue from the horn mouth and then rotating the cabinet to let it flow along the corners formed by the plywood and the foamcore board.

In my experience vinyl glue is too liquid, it's easily absorbed by wood and "shrink" too much when drying. Next build I'll try a more dense glue.

17th February 2013, 05:53 AM	#622
planet10 frugal-phile(tm) diyAudio Moderator Join Date: Oct 2001 Location: Victoria, BC, NA, Sol III Blog Entries: 5	You aren't getting anything out of me till they are done. dave __________________ community sites t-linespeakers.org, frugal-horn.com, frugal-phile.com ........ commercial site planet10-HiFi p10-hifi forum here at diyA

17th February 2013, 11:07 AM	#624
jetlag9 diyAudio Member Join Date: Jan 2011	Peacock.. @xrk971 I did the 20" and the depth is 4". The bass is quite unbelievable for the size. @Dave True. That's what my wife said too. So planning to move it to another wall!! One small correction though, that is paint, not wallpaper. Later Peace Jetlag

17th February 2013, 06:01 PM	#627
Cal Weldon Speakerholic diyAudio Moderator Join Date: Jan 2004 Location: British Columbia	Nice build. Any pics? __________________ Next stop: Margaritaville Some of Cal's stuff \| Cal Weldon Consulting

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17th February 2013, 05:27 AM	#621
xrk971 diyAudio Member Join Date: Oct 2012 Location: Virginia	What driver and what size box are you building? Or completely different from base plan?

17th February 2013, 10:53 AM	#623
xrk971 diyAudio Member Join Date: Oct 2012 Location: Virginia	I see... it's a big seeecret. looking forward to seeing your creation.

17th February 2013, 05:58 PM	#626
solhaga diyAudio Member Join Date: Jun 2009 Location: Värsta Götaland	So I built the twin to this one: but tilted them like Switters. They are now my computer speakers together with a sub. The E60 sounds great but had to be sealed by the long side of the driver as it bulged there, when I swept the speaker slowly from 50 to 400 Hz I heard distinctive air leakage at certain frequencies. Also a loose segment in one horn´s end was revealed by the sweep. Next step is to build some HT satellites. Just need to get them more Waffy.

17th February 2013, 06:15 PM	#628
solhaga diyAudio Member Join Date: Jun 2009 Location: Värsta Götaland	They don´t look so nice right now as they got smudged by the black silicone sealant. They will end up like Switters´s eventually, I hope.

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