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why is it necessary to maintain the input signal level of a frequency response of an audio amplifier?
I think you mean 'maintain the same input signal level at all frequencies' while measuring the frequency response. It's because you want to measure the gain of the amplifier at different frequencies and you can't do that if the input signal level is constantly shifting.
Doug
Whats On My YouTube Today?
Audio Frequency Generator and Tubes-vs-Solid State Amps
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