music concrete

[skodaboy]

hey
i have a mate who works in concrete who like to make some cabinets. i reckon he should go for something thats not easy with wood products like curved cabinets.
Anybody know of suitable designs?
looking at floor standers!!
cheers

[skodaboy]

some extrra info -
the room in the house he has built is large with a near two story height at one end about 5x7 metres so prob needed 15" bass to fill room!!

[sreten]

Hi, not easy with wood ? How do you expect to make the moulds ? rgds, sreten.

It has been done, it is commercial suicide, as the result has huge shipping costs.
A Metronome is an ideal moulding candidate, but the moulds are just as complicated
as the real speaker, probably more so, given the driver cutouts, makes no sense.

5 pour concrete/cement/plaster lining of basic boxes is a lot simpler and has been done.
Thick front baffle and line the other five faces, the linings don't have to be parallel,
in either plane, so internally the linings could form all sorts of internal shapes.

[juz400]

I have a Faraday Sound sub, has an 8" driver with concrete cabinet.
It is VERY heavy for its size!
It does have a very solid bass output tho. If you planning something moveable,
I dont think you should go an larger than a 12"

If your not planning on moving it, work out the best sites and build big!

[gooki]

Go open baffle if you want to accommodate a 15 inch woofer while keeping weight down.

[lowpoke]

You could make it a modular system to make moving them manageable ... i.e. separate enclosure for bass, mids and highs etc. They could stack on top of each other.

[sreten]

Originally Posted by juz400

I have a Faraday Sound sub, has an 8" driver with concrete cabinet.
It is VERY heavy for its size!
It does have a very solid bass output tho. If you planning something moveable,
I dont think you should go an larger than a 12"

If your not planning on moving it, work out the best sites and build big!

Hi, Faraday also made concrete speakers, with Morel drivers, and Audax, I recall, also VERY heavy, rgds, sreten.

The VERY heavy concrete cabinet Morel version was called the Bassmaster I recall.

[Loren42]

Originally Posted by skodaboy

hey
i have a mate who works in concrete who like to make some cabinets. i reckon he should go for something thats not easy with wood products like curved cabinets.
Anybody know of suitable designs?
looking at floor standers!!
cheers

What does he want for his end goal; great sound, or a sculpture?

To be honest, the acoustic difference between a well designed speaker in a normal wood cabinet versus a concrete enclosure will not likely be very audible. I doubt there will be much cost savings and the difficulty will be pretty high.

What is his budget?

[Inductor]

Originally Posted by Loren42

What does he want for his end goal; great sound, or a sculpture?

To be honest, the acoustic difference between a well designed speaker in a normal wood cabinet versus a concrete enclosure will not likely be very audible. I doubt there will be much cost savings and the difficulty will be pretty high.

What is his budget?

"They" also make it of steel, glass, pipes(concrete and plastic), foam, Corian, others... and wood. (and) Bricks and mortar.

[seebert]

One of the more "interesting" non-wood reflex cabinets I've seen that was quite popular in Europe in the 70's was a complete ceramic toilet. Who was it said form follows function ???