I have initially considered mltl design proposed by GM, and it is still, but was even more intrigued with this thread suggesting the look alike of the Rondo and the Breeze...
Moreover, the simplicity of using foam core to bend the shape of the speakers. How wonderful is that! Imagine how quickly one could built a pair and enjoy.
I could give it a try this weekend and see how well it resonates,
Thank you xrk971, I will report back
Moreover, the simplicity of using foam core to bend the shape of the speakers. How wonderful is that! Imagine how quickly one could built a pair and enjoy.
I could give it a try this weekend and see how well it resonates,
Thank you xrk971, I will report back
I believe that cervelorider built a pair of these, or some thing Very similar, for the Betsy drive unit.... i think the thread might be in the Wild Burro sub-forum.
Looking forward to seeing your build. Good luck. Don't forget to add bracing to the foam core walls. Probably window braces every 6 inches is enough. Don't forget to add a vertical brace to support the top lid as that will take the brunt of the main chamber resonances. A good layer of fiberglass or wool plus poly fill at the top and loosely in the upper half to 2/3rds of the chamber should help.
Hi xrk971
I have visited a few places looking for some foam core but none have them anymore. Guess alot of people bought them for speakers use as well...lol
But I saw some paper tube at home depot and wonder if they can be use for the enclosure. Any comments???
Thanks
I have visited a few places looking for some foam core but none have them anymore. Guess alot of people bought them for speakers use as well...lol
But I saw some paper tube at home depot and wonder if they can be use for the enclosure. Any comments???
Thanks
... I think they are call "sono tube"... OR "cement tube"... About 1/8" thickness. Come in various sizes diameter...
What part of Canada do you live in? If you are in Vancouver BC, Cal Weldon knows where to find them. The cement tube forces you to a round tube shape - where do you put the baffle?
"...where to put the baffle?"
...I could slice the tube enough say a few inches to compensate the baffle. I am more concerned if it is abit too thin to use a an enclosure though.
What is your view on this xrk971?
...I could slice the tube enough say a few inches to compensate the baffle. I am more concerned if it is abit too thin to use a an enclosure though.
What is your view on this xrk971?
My other option is to built a three sided shape enclosure like the "Breeze " ... Look simple enough.
Assembling the sides of a Rondo style speaker is not complicated.
Glue the side panel to the front, just laying the frame on the panel is OK if the frame is heavy enough.
Clamp a little board to the back at the lower end of the panel, so it can't escape during the second glue step. Keep the cutoffs of the top to use it for clamping the top. For clamping the back round off the corners of the bar (to get no damage of the panels).
The length of the panels has to calculated exacly and the frame has to be crafted by a carpenter.
The ports have to be cut into the back with this method, but I put a resonator inside to get a folded TL.
Glue the side panel to the front, just laying the frame on the panel is OK if the frame is heavy enough.
Clamp a little board to the back at the lower end of the panel, so it can't escape during the second glue step. Keep the cutoffs of the top to use it for clamping the top. For clamping the back round off the corners of the bar (to get no damage of the panels).
The length of the panels has to calculated exacly and the frame has to be crafted by a carpenter.
The ports have to be cut into the back with this method, but I put a resonator inside to get a folded TL.
Daze,
Those look very nice. Is this an open bottom design or rear vented? If you have photos of construction that would be appreciated. How do you bend and hold the side plywood panels in place?
Those look very nice. Is this an open bottom design or rear vented? If you have photos of construction that would be appreciated. How do you bend and hold the side plywood panels in place?
They are opened at the bottom and semi-open in the back. There are only two small braces inside. The sides are made of ¨Perform¨ plywood. The front and back are Birch.
Hi Daze... Those look very nice! Where about are you in Montreal? Any chance I can stop by for quick demo? PM me...
Hi there, i have made a pair of rondo...all i can say is that the sound it's 'different' in a good way compared to conventional speakers. Very good bass (short and fast) , very dynamic and good rhythm with instruments. I have tried different types of speakers in these cabinets, and sabas are not the best ones but sound good indeed. It' s very important to choose the right length for the legs...
I recommend this type of enclosure...it s beautiful, sounds awesome and looks spectacular.
I recommend this type of enclosure...it s beautiful, sounds awesome and looks spectacular.
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