LM1875, TDA2050 & JAT501 amplifier distortion measurement at 8 ohms

I was curious of the performance of these chips and the JAT501 at 8ohms. I also made some adjustments to the software and retested at 4 ohms. Intermodulation distortion results are now shown. First half of the video I discuss some of the settings in the ARTA software.
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Видео LM1875, TDA2050 & JAT501 amplifier distortion measurement at 8 ohms канала JohnAudioTech