Concrete Cube

A place for DIY project discussions.
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Colin Wonfor
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Re: Concrete Cube

Unread post by Colin Wonfor »

Alan Elsdon in the late 1970,s used concrete tube for road drain and mounted Lowther driver in them they sounded amazing.
It can be done so imagine it.

jimbob
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Re: Concrete Cube

Unread post by jimbob »

Yeah it looks like a few companies have dabbled with concrete speakers over the years. I would imagine transporting them economically and without damage has made them an unviable commercial option.
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valvesRus
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Re: Concrete Cube

Unread post by valvesRus »

I seem to remember someone (many years ago) using a toilet pan with a Kef B139 mounted where the seat would fit and using the waste pipe outlet as a sort of transmission line. :lol:

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Dr Bunsen Honeydew
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Re: Concrete Cube

Unread post by Dr Bunsen Honeydew »

Best place for a B139.

Chunk McDaniel
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Re: Concrete Cube

Unread post by Chunk McDaniel »

:lol: :lol: :lol:

setting son
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Re: Concrete Cube

Unread post by setting son »

Didn’t Townsend do some concrete speakers?

jimbob
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Re: Concrete Cube

Unread post by jimbob »

From a quick google search yes I think they did. A few have tried it over the years. It will be interesting to see how the concrete cabinets work along side the docs speaker principles.
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jimbob
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Re: Concrete Cube

Unread post by jimbob »

Just a quick update. I should hopefully be popping to see a metal fabricator today to see if they can make me a steel mould for casting the panels and I am also looking into the possibility of making or having someone make a rubber casting mould. If the rubber moulds are reasonably priced then they will be the way forward.
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zebbo
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Re: Concrete Cube

Unread post by zebbo »

Rubber? Liquid concrete, even in small amounts is capable of exerting a lot of pressure, as many carpenters have found to their cost! Even if it only pushes the middle out a mm or so it will look shit. I'd go for steel if you can afford it.
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Re: Concrete Cube

Unread post by jimbob »

Zebbo , this is what I was thinking of...

https://youtu.be/LZbikO7HUrE
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