Sometimes I like to wander around looking at things to get a new idea. I was in the shop when this one came to me. Guess what I was doing?
No, I wasn't watching Southpark.
How does this thing you saw sound? Certainly, the curvy cabinet can be made in FC. I think until folks actually try to make a curved wall with FC, they will not realize how easy it is and how liberating it is to be freed from designing cabinets with rectilinear walls. It really is shift in cabinet construction mindset. Front horns should also be something we keep an open mid for as there are substantial gains to be had with a front horn. A tractrix profile can be easily made. I need to finish mine and post results...
It is a horn from Tom Danley, compact in size compared to the expansion. Part of the multi driver Pro setups from Danley that act as a point source.
More in this thread:
http://www.diyaudio.com/forums/multi-way/217298-square-pegs.html
Maybe you could make a very compact line array with them?
More in this thread:
http://www.diyaudio.com/forums/multi-way/217298-square-pegs.html
Maybe you could make a very compact line array with them?
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Well it kinda goes: splooch, wish, wish, wish, splooch, wish, wish, wish. What you are looking at is the hard part of it, not the soft part.
Ya, my wife won't even notice those in her livingroom.
Ya, my wife won't even notice those in her livingroom.
I was thinking a scaled down version...
I am still trying to wrap my head around that one and how it may be adapted to foam core. I see a concern with panel flex that way maybe?
Probably
but you wanted a challenge .Paraline front with cornu backside? I honestly don't know how low a paraline with a small full range would go though. But it is an interesting horn/waveguide.
The inside channels are very small so it might just work with foam board. It's just a stack of different shapes as seen in the picture...
Look at the thread I linked for some home brews...
I would advise against foam core for a paraline. There are some very high pressures generated near the throat, and the panel opposite the throat is not well supported. It has to be rigid.
How about a Smith horn? It has built-in spacers / stiffeners and has been done in polystyrene sheet.
http://www.diyaudio.com/forums/multi-way/153831-styrofoam-smith-horn.html
MrMag, it took me a minute to see the speaker, and that was my second look at it.
That is right along the lines of what I am considering, thanks.
Yes, AKA as the Groucho Marx stereo Cornu's.
I am game to help test. Have 4 TB w4-1052sd laying around that need a use. The multi-tuned paths sounds interesting, like a pipe organ.
I tried designing something like this about a month ago. The idea was more of a bookshelf sized speaker 12"x12"x5.5" with two internal serpentine paths of different lengths, side by side. The size was picked to fit into a USPS flat rate mailer. The problem was that the tuning just couldn't go any lower than 160hz or so (the horns ended up tuned to about 160 and 200hz) with the limited size. Scaled up with a better horn length, the bass response could be impressive. Maybe a larger 5 or 6" driver and four or five different tuned horn lengths?
Fenris,
Glowglass did an awesome job building perhaps the largest of all Cornu's in this forum to date. It uses a massive driver and is very big with six channels x 2 layers for 12 channels per speaker. More details in this thread here: http://www.diyaudio.com/forums/full-range/225622-ever-think-building-cornu-spiral-horn-now-you-can-68.html#post3388738
His idea is a little different in that the front and back layers are the same in path designs.
Glowglass did an awesome job building perhaps the largest of all Cornu's in this forum to date. It uses a massive driver and is very big with six channels x 2 layers for 12 channels per speaker. More details in this thread here: http://www.diyaudio.com/forums/full-range/225622-ever-think-building-cornu-spiral-horn-now-you-can-68.html#post3388738
His idea is a little different in that the front and back layers are the same in path designs.
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pats on the back for xrk971
I have to give many thanks to XRK971 for some of his foamcore box designs.
I used his Vifa FIB enclosure for fun set of speakers for the kitchen. The Mrs. highly approved when I came up with putting a print on the front. Found a 36"x24" print and split it down the middle and then cropped the top and bottom to fit.
I am amazed how they sound! Great low's for a 3" and they blend in so nicely. I laugh when the friends walk in with a confused look on their face wondering where all that sound is coming from.
Thanks again X
I have to give many thanks to XRK971 for some of his foamcore box designs.
I used his Vifa FIB enclosure for fun set of speakers for the kitchen. The Mrs. highly approved when I came up with putting a print on the front. Found a 36"x24" print and split it down the middle and then cropped the top and bottom to fit.
I am amazed how they sound! Great low's for a 3" and they blend in so nicely. I laugh when the friends walk in with a confused look on their face wondering where all that sound is coming from.
Thanks again X
Attachments
I also used his 30"x20" mltl design by split it in 2. Same speaker for the set up and then I let the boys each bust out the markers for some 7 and 10 year old artwork.
It's gift for my mother for her new arts and crafts room back home. They also sound great. The imaging of the little speakers is so nice.
I hooked them up to a lepai 2020 but couldn't give it to ma stock, so I disguised it in an old puzzle box. Now it will blend right in on her art shelves.
Kudos to X! Fun boxes to build and I didn't even have to start the furnace in the garage.
It's gift for my mother for her new arts and crafts room back home. They also sound great. The imaging of the little speakers is so nice.
I hooked them up to a lepai 2020 but couldn't give it to ma stock, so I disguised it in an old puzzle box. Now it will blend right in on her art shelves.
Kudos to X! Fun boxes to build and I didn't even have to start the furnace in the garage.
