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Old 6th December 2007, 12:33 AM   #1
kazoo is offline kazoo  United States
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Default latest project TB 3" bamboo

Hey guys,
Just wanted to show off the latest project. Had the idea for a while but finally found what I needed to make it happen plus a little motivation from an earlier thread where one of you guys made speaker enclosures out of bowls found at Target.

So I needed some computer speakers and made this. I found 7" salad bowls at Bed, Bath, and Beyond store. They came in a set of four and all about the same size. I added a spacer to make them evenly round and added some cotton fill inside. The drivers are Tang Bang 3" bamboo. Also made a wooden donut for the base so they can be positioned at any angle needed.

Got to tell you they surprised me. A little 3" driver and it kept up with all kinds of music I put through them. I am running them on a Harmon Kardon receiver for right now. They sound smooth and not fatiguing at all. I listened to them at work all day. Actually I was thinking of making three more and trying them out as an HT setup. So what do you guys think? Any ideas to improve on the enclosure?

John
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Old 6th December 2007, 12:34 AM   #2
kazoo is offline kazoo  United States
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Old 6th December 2007, 12:35 AM   #3
kazoo is offline kazoo  United States
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Old 6th December 2007, 12:45 AM   #4
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Speakers look great. What did you use to make such a clean rebate around speaker. The bowl shape looks like it would have been hard to deal with.
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Old 6th December 2007, 01:20 AM   #5
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Hi Kazoo

You have just done what I have been
thinking of for X years Very nice
and I am sure the Bamboo units work
well. I use counterweights in a foam
core for balance as I used non Neo
Tang Band drivers. Have seen similar
sorts of bowls in Ikea. Picture is
of my sphere experiments in Paulownia,
Acrylic and Ceramic. Your idea is less
work than mine were. I like it Congrats!


AnthonyPT
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Old 6th December 2007, 03:10 AM   #6
kazoo is offline kazoo  United States
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Quote:
Originally posted by postalrat
Speakers look great. What did you use to make such a clean rebate around speaker. The bowl shape looks like it would have been hard to deal with.

Thanks, I used a lathe. There is a special adapter for a lathe chuck that holds bowls on the outside rim so you can finish off the bottom. So I used a holesaw to cut most of the opening for the speaker and then turned it down to the diameter of the speaker. Once I had the opening I used a flat chisel on the lathe to create the rebate. Trial and error until everything fit right.

John
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Old 6th December 2007, 03:25 AM   #7
kazoo is offline kazoo  United States
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Quote:
Originally posted by AnthonyPT
Hi Kazoo

You have just done what I have been
thinking of for X years Very nice
and I am sure the Bamboo units work
well. I use counterweights in a foam
core for balance as I used non Neo
Tang Band drivers. Have seen similar
sorts of bowls in Ikea. Picture is
of my sphere experiments in Paulownia,
Acrylic and Ceramic. Your idea is less
work than mine were. I like it Congrats!


AnthonyPT

Those are beautiful! Those materials would be a lot harder to work with. So how do they sound, especially the ceramic ones? Is there a ring to them or are they dead quiet? It would be a fun experiment to compare all those and wooden ones also with the same drivers to see how the sound differs.

John
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Old 6th December 2007, 08:54 AM   #8
marce is offline marce  United Kingdom
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nice
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Old 6th December 2007, 12:34 PM   #9
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Hi
The ceramic Spheres had weighted foam cores
and were lined with tar based spray plus rock wool
to deaden them. The blue sphere is made
of Stoneware and takes a long time to drill
holes in.The driver in the Blue sphere is
an Axon/Haes 4SF-01 with a fibre glass cone
Nylon bolts were used with a blu-tak putty
to secure it to the sphere. Till others
dropped them and I had to make more they
sounded very nice especially with a 6th order
bandpass sub I made. Imaging was very nice.
Did not have my Clio system to measure them then!
I am making some new ones at present. The 3inch
drivers I used are TB 517s & 319s also a Response
3 in coated paper driver from Jaycar which I
always liked. Most are in Acrylic spheres.

regards

AnthonyPT
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Old 6th December 2007, 07:52 PM   #10
Dr_EM is online now Dr_EM  United Kingdom
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Really nice work, very "organic" looking . I like how people utilise everyday objects like these salad bowls.
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