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Old 2nd June 2013, 02:15 PM   #941
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Well, I guess we tried!

Hey, has anyone tried to make a speaker out of this stuff?

1/2 in. x 4 ft. x 8 ft. Sound Choice Sound Deadening Board-717008 at The Home Depot
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Old 2nd June 2013, 02:25 PM   #942
xrk971 is offline xrk971  United States
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Nice find on new alternative materials there Chaz! I think this can work very well as internal wall dividers in BLH's. Maybe perfect for the PANPIPE. I have thought of using acoustic ceiling tile which is more porous. This stuff looks like it might be very clean as it is cardboard waste re-used as board.
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Old 2nd June 2013, 02:58 PM   #943
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Yup, I think I might also give it a try. I'm thinking about abandoning the cornu for a while again and instead building MJK's corner horn from this material. Two test cabinets for $10: hard to complain.
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Old 2nd June 2013, 03:14 PM   #944
tomlang is offline tomlang  United States
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Link or drawing of MJK corner horn?
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Old 2nd June 2013, 05:13 PM   #945
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http://www.quarter-wave.com/Horns/BL...gn_Article.pdf

to clarify, it's only a corner horn to the extent that it's intended to be placed in a corner; it's not on the level of a klipschorn as such, in case I gave that impression.
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Old 2nd June 2013, 08:38 PM   #946
prezden is offline prezden  Canada
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Hi guys
Here are my latest Cornu's- 22" with 24" face with W4 bamboo drivers. Hope you like them. They're sounding great even though the drivers only have about 80hrs on them.

cheers- prez
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File Type: jpg Bill's speakers 2.jpg (570.8 KB, 441 views)
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Old 2nd June 2013, 08:49 PM   #947
xrk971 is offline xrk971  United States
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Prez,
That's a beautiful piece of art more than a speaker. I'm glad enlarging the driver cutout holes worked out for you. Congrats.
Did you do the cover design yourself?
How does this build compare to all the rest? Is the 4 inch bamboo driver really good?
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Old 3rd June 2013, 09:27 PM   #948
prezden is offline prezden  Canada
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Hi X- Thanks for the kind words. The artwork is a piece I did a few years ago recycled for this project.
I'm still breaking in the speakers but they sound quite nice. I'm using an unfinished Peter Daniels kit for the amp so have 2 unknowns going at once. At this stage they seem in between the 14" and 18" ones with the smaller being the fuller sound and the 18's being a bit thin. I have just put some new W3 bamboo's in the 18 inchers and they seem a little fuller with better bass. I don't think my poor old ears are so good to really be able to judge the subtle differences.

cheers- prez
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Old 19th June 2013, 07:10 PM   #949
prezden is offline prezden  Canada
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After a few week listening I think the W4 bamboo drivers sound great in the 22" Cornu's. The sound is very clean, detailed and well balanced.

cheers prez
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Old 9th July 2013, 05:34 PM   #950
prezden is offline prezden  Canada
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Default going wireless

Can anyone offer some advice on building a pair of wireless cornu spirals? I thought to build a receiver into the 2 boxes but can't find any info on how to do it or any design for the transmitter which I would like to build into a small T amp.
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