I dont have any problems tuning to C but when i do i get sound likes the individual strings are screwed. i detune it to play dethklok and it sounds better when i just leave it. does it have to do with my amp/strings?
"What makes this amp so special is it goes to 11"
ohh this is fine tuning.. you not only have to tune to the note.. you have to tune to it perfectly.. a chromatic tuner helps (i used to have this problem when i tuned by ear)

usualy your equipment wont have any effect on ur tuning (unless its **** that cant hold a tuning for a few seconds)
if you have thin strings and youre trying to tune low it'll also sound like ****.

could be that.

use like .12's - .56 or whatever they are and tune that low.