An alternate model of the loudspeaker/amplifier system suggests a reason to prefer amplifiers with damping factors near unity. This analysis revolves around the motional voltage or back EMF generated by moving-coil loudspeakers. This model and some examples are presented and examined. A circuit which uses motional voltage feedback to synthesize a damping factor of unity is presented. While listening tests tend to show a preference for systems with unity damping, little support for this observation appears in the usual battery of tests. Analysis of these and other tests point to a combination of factors that makes low damping factors desirable.
Authors:
Peplinski, Chuck; Miller, Allen
Affiliations:
Time Warner, Interactive, Milpitas, CA ; F. A. Miller Audio Inc., Kenwood, CA,(See document for exact affiliation information.)
AES Convention:
99 (October 1995)
Paper Number:
4119
Publication Date:
October 1, 1995
Subject:
Loudspeaker Distortion and Measurements
Click to purchase paper as a non-member or you can login as an AES member to see more options.
No AES members have commented on this paper yet.
To be notified of new comments on this paper you can subscribe to this RSS feed. Forum users should login to see additional options.
If you are not yet an AES member and have something important to say about this paper then we urge you to join the AES today and make your voice heard. You can join online today by clicking here.