- Jan 14, 2022
Hi PavelThe power amplifier tests should be much more severe than the set of measurements performed by @amirm . Amplifiers should be tested with continuous sine for longer period of time and at higher power, to disclose thermal design issues that affect the reliability and longevity. Complex load to be used to disclose possible stability issues. Square wave to be used for the same reason. As of the current status of tests, they are close to pointless. They support cheap designs that are oriented to low level 1kHz SINAD, which is not very useful for the user. I do not understand why an experienced engineer like @solderdude is protecting such way of testing. It seems to me that @restorer-john is of very few here who understands amplifier testing. @amirm is not the one.
Well said and as you say "As of the current status of tests, they are close to pointless" In my opinion they are not close to pointless, but absulutally pointless. 1kHz SINAD is as meaningless as you can get it when measuring an amplifier.
Let us see some reale measurements.
All the best