Rerurn to Romy the Cat's Site
In the Forum: Horn-Loaded Speakers
In the Thread: Jessie Dazzle Project
Post Subject: The lightweight divisionPosted by Paul S on: 7/24/2008
I just remembered that I sometimes use a cementatious material that has added to it a fair amount of foam-ish beads and acrylic. The stuff sets up like cement but is MUCH lighter than cement or plaster, perhaps 2/3 lighter. I mention this because I still think moulding/forming with substantive inert material is the way to go.
I've never really sonically isolated fiberglass or carbon fiber in speaker horns, but I have done it with tonearms and enclosures. Nor have I yet heard anything good coming from fiberglass or carbon fiber drivers. FWIW, I think there are "better sounding" materials for those purposes.
The main problem with material resonances I've dealt with is that they are generally "signature" sounds, which means that they are usually best kept well in check.
Best regards,
Paul SRerurn to Romy the Cat's Site