I just had a quick look at that software. The only explanation I have is that he maybe changed some settings to a dangerous degree. The first two “dangerous” features I saw was the limiter and the compressor. I can imagine, that this can have negative effects on your sound card if the settings are too high. You can not change that stuff in the mentioned equalizer. If my theory is correct, it’s not a problem of the effects app. This could also happen in e.g. audacity if you’re not careful and you don’t know what you’re doing.
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