From: utzoo!utcsstat!utcsrgv!newman Newsgroups: net.audio Title: Re: speaker cabinet materials Article-I.D.: utcsrgv.1213 Posted: Wed Mar 23 23:32:57 1983 Received: Thu Mar 24 06:25:49 1983 References: reed.248 As far as I know, the desirable quality of a speaker cabinet is NOT its resonances, but on the contrary that it be as acoustically inert as possible (i.e. no resonances in audio range). The commonly used veneered particle board is quite good in this respect. Using stone seems a bit unusual (not to mention heavy) but I have read about subwoofer enclosures made of concrete, I think in Audio Amateur. As I recall, he had to reinforce the floor.