The best DJs also have AT LEAST a little bit of audio engineering background. Bonus points if you also have audio production, mixing, and mastering knowledge. If you are a DJ and don't know anything about sound, you're in it for the vanity. DJing is an art. DJing serves dance floor culture. DJing serves sonic curation. DJs are not pop stars. DJs are not celebrities. Get your head out of your ass with that capitalist commodified ego bullshit.