To-day, low frequency reproduction with loudspeakers in vented box is limited by two factors: the volume of the box, and non-linear airflow through the vent. We propose a novel approach that takes into account aerodynamical parameters, leading to original profiles and an improved functioning of the vented box. For example, under certain alignment conditions, there exists a second cut-off frequency below the first one, localised on the lower impedance hump. Using this lower cut-off frequency and an adapted vent profile makes it possible to radiate frequencies around 40 Hz with box volumes smaller than 1 liter and small drivers. A prototype will be demonstrated.

Authors: Morkerken, Jean-Pierre; Parzy, Benjamin; Pellerin, Guillaume; Polack, Jean-Dominique
Affiliation: Laboratoire d'Acoustique Musicale, Paris, France.
AES Convention: 112 (April 2002) Paper Number: 5522
Publication Date: April 1, 2002 Import into BibTeX
Subject: Loudspeakers
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=11359

Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $33 for non-members and is free for AES members and E-Library subscribers.

Learn more about the AES E-Library

E-Library Location: (CD aes19)   /pp2002/pp0205/000183.pdf

Start a discussion about this paper!