• on Audio/Video/Photography
  • Published in issue 7/2006 on page 0
About the article

DC-coupled Audio Amplifier

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Designs for audio amplifiers with DC coupling to the load are not often encountered these days, even though they offer definite advantages. One advantage is that there is no need for the complication of a second (symmetric) power supply; another is good frequency and phase response. Also, no special electrolytic capacitors are needed for voltage stabilisation, and switch-on ‘thump’ is much reduced.
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