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New Loudspeaker Diaphragms Using Fiber Reinforced Plastics

New loudspeaker diaphragms using fiber reinforced plastics have been developed. The diaphragm for the low frequency range is made of a conical or convex shaped honeycomb cone composed of the epoxy resin reinforced with "Aramid fiber" and a metal core. The diaphragm for the rid and high frequency range is made of a very thin injection molded thermoplastic cone, which is reinforced with radially oriented short carbon filter. Both loudspeaker diaphragms have high specific modulus and internal loss and show excellent acoustic characteristics.

Authors: Tanaka, J.; Baba, F.; Yagima, M.; Fujii, A.; Miyao, K.
Affiliation: MITSUBISHI EL. CORP., KANAKURA, JAPAN
AES Convention:75 (March 1984) Paper Number:2061 Import into BibTeX
Subject:Loudspeakers

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