Discussed is an approach to amplifier design which appears to be suitable for use in driving loudspeakers whose frequency response characteristics tend to vary with their electrical impedance. The approach deals with tailoring amplifier output impedances to control loudspeaker behavior. The paper discusses some general rules of design and gives an example along with experimental tests. It concludes with the significance that such amplifiers can have on loudspeaker design and the potential for increased flexibility afforded the loudspeaker designer.
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