Cal,
I've been looking at the "Now you can" Cornu thread. (made it about 1/3 of the way so far!)
Which drivers did you end up using in your Cornu's?
Ref Post # 244
http://www.diyaudio.com/forums/club...ver-island-diyfest-2013-a-25.html#post3602191
I found some of the Aura 3" / 16 ohm drivers. Did you try that one?
Would a different size or spiral help out different drivers?
I've been looking at the "Now you can" Cornu thread. (made it about 1/3 of the way so far!)
Which drivers did you end up using in your Cornu's?
Ref Post # 244
http://www.diyaudio.com/forums/club...ver-island-diyfest-2013-a-25.html#post3602191
I found some of the Aura 3" / 16 ohm drivers. Did you try that one?
Would a different size or spiral help out different drivers?
Hi Dave,
Yes, I tried 6 different 3" including the really cheap and the mid priced Aura's. The LG's came in first and the JVC's came second IMHO. My BIL up in Prince Rupert now uses the midpriced Aura's in his. The small speaker is a spiral, not a Cornu shaped spiral.
The large *** kicking bass units are a Cornu style with the Fostex FF125WK and the full complement of planet10 treatments.
I would not make a regular spiral again as I think the bends in the Cornu horn help to damp the higher frequencies.
Yes, I tried 6 different 3" including the really cheap and the mid priced Aura's. The LG's came in first and the JVC's came second IMHO. My BIL up in Prince Rupert now uses the midpriced Aura's in his. The small speaker is a spiral, not a Cornu shaped spiral.
The large *** kicking bass units are a Cornu style with the Fostex FF125WK and the full complement of planet10 treatments.
I would not make a regular spiral again as I think the bends in the Cornu horn help to damp the higher frequencies.
This could be the biggest "Bang for the buck" speaker project ever.
You know Dave, you might be right. That plus the fact it's one of the lightest speakers of that volume, makes it that much more fun.
Cal with his Cornus at DIY FEST
I thought this pic fun for both threads-I also posted it to the cornu thread. Pretty sure the drivers are the Fostex FF125WK with Planet10 mods
They had a lot of bass considering driver size, they must be really bass-ful on a wall.
I remember wondering if they would benefit from thicker front and rear baffles. I thought that the baffles were vibrating/radiating. If that is the case, the sound would be different with thicker baffles.
I can see how the 3/8"(9.5mm)"underlayment"(that's right, Cal, isn't it?) baffle material would be dense compared to its foam-core precedents.
I thought this pic fun for both threads-I also posted it to the cornu thread. Pretty sure the drivers are the Fostex FF125WK with Planet10 mods
They had a lot of bass considering driver size, they must be really bass-ful on a wall.
I remember wondering if they would benefit from thicker front and rear baffles. I thought that the baffles were vibrating/radiating. If that is the case, the sound would be different with thicker baffles.
I can see how the 3/8"(9.5mm)"underlayment"(that's right, Cal, isn't it?) baffle material would be dense compared to its foam-core precedents.
To answer Howard, here is the build thread for the Cornu's.
http://www.diyaudio.com/forums/full...k-building-cornu-spiral-horn-now-you-can.html
http://www.diyaudio.com/forums/full...k-building-cornu-spiral-horn-now-you-can.html
Terry: Last minute stuff prevented me
I had the multi-vitamins, decaf "sleepy time" tea, aspirin, and Kleenex all packed.
I'll just leave it so it's ready for next year!
Don
3 amiable characters
Terry Eh O, John of the AMP and Mike-whose floor standing three way I regret not hearing(whilst packing up my gear on Sunday morn) Mike, being on the younger and stronger side, was often recruited to do physical tasks, like moving large speakers around. He was always cheerful and willing.
Terry Eh O, John of the AMP and Mike-whose floor standing three way I regret not hearing(whilst packing up my gear on Sunday morn) Mike, being on the younger and stronger side, was often recruited to do physical tasks, like moving large speakers around. He was always cheerful and willing.
there were way too many speakers to get a chance to hear even half of them - much less remember those I did - which were Mike's?
yes, while never as busy as Dave, that Chris guy was mostly tired from catching up on less than total of 30hrs sleep each of the prior 2 weeks finishing off prototypes and bespoke builds ( he should also find his lost respirator when spraying NC lacquer - that and Russian Standard don't mix all that well)
yes, while never as busy as Dave, that Chris guy was mostly tired from catching up on less than total of 30hrs sleep each of the prior 2 weeks finishing off prototypes and bespoke builds ( he should also find his lost respirator when spraying NC lacquer - that and Russian Standard don't mix all that well
)
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