Speaker cabinet materials.

We use aluminum, baltic birch plys, mahagony bambo plys sometimes MDF if it needs to be painted. Corian works good, I find acrylics do not. We use Deflex, acousta stuff, wool,cork, silicon, rubber and carbon fiber in cabinets depends on design goal. Sometime hard rock maple for cabinet bracing again depends on design.

I forget the name, but I've heard fairly thin laminated wood speakers. The motivation was to build them in the same way as a violin is made and they did a good job with piano. Almost dipolar with all it's resonance.

The Krell LAT-1 was aluminum, wasn't it?

I think we're going to see more speakers made out some form of molded synthetic or compound in the future. Should make production less expensive.

Ngjocky Keep in mind the cost of a mold only way a molded cabinet would be cost effective to produce is in mass. So look to China;)

I agree with the poster above
Granite cabinet's done right (Ridge Street Sason's)
it's like there is no cabinet all you hear is the music

Alan Wolfe from Magico believes that Aluminum is the best material to use for a speaker cabinet, YG Acoustics also uses airplane grade aluminum to build their speakers, but if you are looking for the most advanced, most inert cabinet on the market, look no further than Rockport Tech. No one builds a better "cost no object" cabinet than Andy Payor.

look at the measurements for these two Rockport speakers, performed by Stereophile.

http://www.stereophile.com/floorloudspeakers/904rockport/index5.html
and
http://www.stereophile.com/floorloudspeakers/644/index6.html

as far as i have seen, they are by far the most inert cabinet Stereophile has ever measured. Much better than any Wilson or even the Magico, two companies that spend a lot of money advertising the quality of their speaker cabinets.