Impedance matching circuit for driving a speaker system

摘要

An impedance matched resonant circuit uses inductors coupling an audio source and a speaker array in order to reduce feedback reflection induced by an audio signal traveling from the audio source to the array of speakers. An RC circuit could also be coupled to the positive and negative terminals of the speaker array to reduce the slope differential of the audio signal at certain frequencies. The circuit can be packaged together in a single module with switches to activate and deactivate portions of the circuit to alter the effectiveness of the circuit depending upon need.

主权项

1. A circuit for improving efficiency of an array of speakers having a positive and negative terminal, comprising:
a first circuitry configured to couple the positive terminal of the array of speakers with an audio signal source, wherein the first circuitry comprises an inductor configured to reduce reflection of an audio signal by the array of speakers; and a second circuitry configured to operatively interpose a capacitor and an electrically variable resistor between the positive terminal of the array of speakers and the negative terminal of the array of speakers.