Community Professional Loudspeakers was granted a patent by the US Patent and Trademark Office for its Carbon Ring Cone Technology.
The technology development uses a ring of rigid carbon fibre placed around the
outer edge of a specially designed cone, resulting in a structure that is
both lighter and stiffer than a conventional cone.
"An ideal loudspeaker cone would be
infinitely rigid and have no mass," explains Community founder and president Bruce Howze. "Carbon
ring cones are a realistic step toward this ideal."
The increased edge strength
also enables the use of a deeply pleated narrow surround. A narrow surround permits
a larger cone diameter, providing greater piston area in a given frame size.
"In
short, a carbon ring cone is lighter, larger, and stronger," says Howze. "A
speaker employing a carbon ring cone will have higher sensitivity, higher mechanical power capacity and reduced cone break-up."