A digital instrument is described which captures and plots the locus of the limiting values of current and voltage drive available from an audio amplifier and compares it with the measured current-voltage demands of a particular loudspeaker. Based on a recent analog design by Baxandall, it offers improved clarity of display and the ability to store, scale, and compare amplifier and loudspeaker characteristics. The results may be used to optimize amplifier protection circuits and are presented for particular amplifier-loudspeaker combinations, indicating the maximum undistorted power available using program, swept-frequency, and white-noise inputs.

Authors: Fairwood, Roger C.; Reed, Martin J.
Affiliation: Department of Electronic and Electrical Engineering, University of Surrey, Guildford, Surrey, UK
JAES Volume 39 Issue 5 pp. 344-354; May 1991
Publication Date: May 1, 1991 Import into BibTeX
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=5980

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 aes5)   /jrnl8997/1991/8388.pdf

Start a discussion about this paper!