Dimensioning sealed enclosures for suppressing nonlinear distortions in woofers

摘要

It is reported in the literature that, when in open air, woofers can exhibit mechanical distortions caused by bifurcations and chaotic regimes. But, usually, woofers are installed in enclosures. In this paper we investigate how sealed enclosures affect those distortions. We conclude that, for too large volumes, the original woofer distortions remain the same while for too small ones the distortions are suppressed, but serious dynamic range compression occurs. We give directions on how to choose the ideal volume between these two extremes. An example of application is also included. (C) 2021 Elsevier Ltd. All rights reserved.