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Engineering Brief

Acoustic Decoupling Device in Coaxial Compression Driver

Authors: Bartolozzi, Filippo; Cardinali, Valentina; Casadei, Andrea

AES Convention 151 · Paper 662 · October 2021

Abstract

Coaxial loudspeakers are designed to reproduce a broad frequency range while keeping a compact form factor. Correct driver integration requires the engineer to properly deal, at the design phase, with the presence of multiple radiating units and with the interference between their acoustic emissions; this is essential to obtain a smooth response and a wide crossover region suited to flexibly accommodate different filter designs. Due to the presence of multiple phase plugs, recently-appeared two-way coaxial compression drivers require particular care to ensure excellent acoustic performance at short wavelengths. Adding an appropriate decoupling device in the structure allows effective management of the acoustic emission of the two transducers with respect to each other, improving response regularity and increasing the available bandwidth for the crossover versus historical approaches.

Details

Published in
AES Convention 151
AES Convention
151
Paper number
662
Publication date
October 6, 2021
Session subject
Transducers
Affiliation
B&C Speakers s.p.a., Firenze, Italy (See document for exact affiliation information.)
Type
Engineering Brief