Because they ARE processors and NOT amplifiers. Or it might be the case, that you dont know the difference between amp and proc. Amp looks something like this: Proc looks something like this: https://line6.com/podxtlive/
Nope because they process they are called amplifiers. Get your logic right. And it's proccesors, make sure you use spell check next time.
chillx dude i know im jus jokin here...nd don worry abt spellchek its cyberlangauge ur in 21st century now. do u think your question here make any sence?