Dual Concentric Loudspeaker Drive Units:

A dual loudspeaker has two drive units - one for bass and onefor treble, fed via a crossover unit that separates the bass and treblesignals.

A dual-concentric loudspeaker has the two drivers (bass and treble)mounted co-axially. The benefits being a frequency response and phase responsethat is not affected by nodal-cancellation found in normal multi-way speakers.This limitation in conventional multi-way speakers cannot be avoided.

There are a number of famous designs based on the dual-concentric principle,including Stentorian, KEF, the RCA "LC1A", and the famous Altec604-series (released by Altec Lansing in the USA after the Second WorldWar).

Cross Section of the Tannoy MonitorRed Loudspeaker:


Return to: Tannoy Page;    Main Audio Page;    kiewa Valley home page

This page is created and maintained by Steve, at kiewa ValleyStereo.

The information contained in these web pages may NOT be used or reproduced
for commercial purposes without permission.