Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!seismo!caip!princeton!allegra!ulysses!mhuxr!mhuxn!mhuxm!abeles From: abeles@mhuxm.UUCP (J. Abeles (Bellcore, Murray Hill, NJ)) Newsgroups: net.audio,net.analog Subject: Re: Amp designs (Re: current-dumping amplifiers) Message-ID: <581@mhuxm.UUCP> Date: Wed, 20-Aug-86 10:09:09 EDT Article-I.D.: mhuxm.581 Posted: Wed Aug 20 10:09:09 1986 Date-Received: Thu, 21-Aug-86 07:00:10 EDT References: <7773@watlion.UUCP> <3376@jhunix.UUCP> <580@mhuxm.UUCP> <1257@uwmcsd1.UUCP> Organization: AT&T Bell Laboratories, Murray Hill Lines: 11 Xref: mnetor net.audio:2407 net.analog:831 > > what is a "current-dumping" amplifier? > > Assume you have a 100W (rms) amplifier. If it is 100V at 1A, this is not a > current dumper. If it is 10V at 10A this amp would be a current dumper, > useful for driving speakers with very low impedances. (An example is the > Acoustats with the older matching transformers). > Am I correct, then, in concluding that the label "current-dumping" has nothing to do with the design of the amplifier (since merely putting a transformer on the output would change the effective output impedance from 100 ohms to 1 ohm, to use the above example)?