Tweakwizard.com ((free))

: A niche software specifically for tone comparison with the Line6 Flextone III guitar amplifier.

Leo wasn’t a hacker. Not really. He was a tuner —the kind of person who could squeeze an extra twelve frames per second out of a ten-year-old laptop or make a smart fridge run Linux just because the manual said "not to." tweakwizard.com

If you are the type of user who installs a game, immediately goes to the graphics settings, and turns off motion blur and depth of field— : A niche software specifically for tone comparison