The default is not bad...but you can downgrade bass from the default 0.5 to 0.4 for the in-built speakers. I mean I really can't really hear the bass in them all that much anyway, but I do hear distortions sometimes.I'd probably turn it off if I saw EQ onBut that looks like an interesting option.
My laptop speakers sound ok every OS without EQ, but Waves MaxxAudio on Windows kind-of cleans it up (more treble/less bass; messes with niche stuff a little so I disable it entirely)