Concrete Cube

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Colin Wonfor
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Re: Concrete Cube

Unread post by Colin Wonfor » Wed Apr 03, 2019 11:59 am

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 » Wed Apr 03, 2019 12:17 pm

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.
Squeezebox Touch - Colin Wonfor mini pre - EWA M50 Power Amp - Modified NVA Cube 2 mk1 - SSP MK2 - LS6

NVA P90sa - NVA A60 MK1 - DIY Cubettes - SSC - LS3

valvesRus
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Re: Concrete Cube

Unread post by valvesRus » Wed Apr 03, 2019 12:57 pm

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 » Wed Apr 03, 2019 1:02 pm

Best place for a B139.

Chunk McDaniel
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Re: Concrete Cube

Unread post by Chunk McDaniel » Wed Apr 03, 2019 1:38 pm

:lol: :lol: :lol:

setting son
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Re: Concrete Cube

Unread post by setting son » Wed Apr 03, 2019 6:01 pm

Didn’t Townsend do some concrete speakers?

jimbob
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Re: Concrete Cube

Unread post by jimbob » Wed Apr 03, 2019 6:47 pm

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.
Squeezebox Touch - Colin Wonfor mini pre - EWA M50 Power Amp - Modified NVA Cube 2 mk1 - SSP MK2 - LS6

NVA P90sa - NVA A60 MK1 - DIY Cubettes - SSC - LS3

jimbob
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Re: Concrete Cube

Unread post by jimbob » Fri Apr 05, 2019 8:58 am

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.
Squeezebox Touch - Colin Wonfor mini pre - EWA M50 Power Amp - Modified NVA Cube 2 mk1 - SSP MK2 - LS6

NVA P90sa - NVA A60 MK1 - DIY Cubettes - SSC - LS3

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zebbo
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Re: Concrete Cube

Unread post by zebbo » Fri Apr 05, 2019 10:57 am

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.
Audio Grail "Sable" Garrard 401 with constrained layer plinth / SME V / Benz Micro Gullwing SLR, Phono 3 + 2X BBPSU - MEGA!, NVA TAS, NVA Cubix-Pro, (top & mid sections). (Oh and a Pioneer BDP LX70A when I just want some background music!)

jimbob
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Re: Concrete Cube

Unread post by jimbob » Fri Apr 05, 2019 12:30 pm

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

https://youtu.be/LZbikO7HUrE
Squeezebox Touch - Colin Wonfor mini pre - EWA M50 Power Amp - Modified NVA Cube 2 mk1 - SSP MK2 - LS6

NVA P90sa - NVA A60 MK1 - DIY Cubettes - SSC - LS3

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