Complete Modeling of a Vented Box Loudspeaker in COMSOL Multiphysics®

R. Vaucher[1]
[1]NEXO, Plailly, France
Published in 2014

This paper describes the use of COMSOL Multiphysics® during the design of a vented box loudspeaker. Templates have been created to model the different needs of a complete design. Based upon those templates a box has been prototyped, measured and confronted to simulation. The cabinet may be described as a vented box design, featuring two low frequency drivers mounted in a "V Shape" with a horn loaded compression driver. Several uses of COMSOL Multiphysics® have been considered in this study. • Directivity of the V shape design with different configurations in 3D. • Tuning and shapes of the vent. • Horns polar pattern and radiating impedance. • Acoustic modes within the box. • Structural modes of the box itself.