Schollaudio
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- Jun 24, 2021
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Hi guys
Recently looking at different amp output topologies and was wondering what were the advantages\disadvantages to amplifiers that has output stages with grounded emitters\sources and floating power supply centertaps like QSC, Hafler and Chevin?
One advantage is simpler input stages. The Chevin and QSC designs use only two opamp stages, two driver transistors then the output bank of devices. They scale this design up to 500 or more watts per channel.
Are there any smaller home amps built like this other than Haflers?
Recently looking at different amp output topologies and was wondering what were the advantages\disadvantages to amplifiers that has output stages with grounded emitters\sources and floating power supply centertaps like QSC, Hafler and Chevin?
One advantage is simpler input stages. The Chevin and QSC designs use only two opamp stages, two driver transistors then the output bank of devices. They scale this design up to 500 or more watts per channel.
Are there any smaller home amps built like this other than Haflers?
