EYEMASTER METAL DISTORTION brings back the original metal credo of "loud and brutal" with its "simpler-than thou" 2-knob operation.
Just set the volume (all the way up, right?) and adjust the gain (anything less than all-the-gain is sacrilege) and start riffing.
EYEMASTER was specifically designed to channel the Swedish death metal tone, endearingly nicknamed the "Swedish buzzsaw". As that term implies, EYEMASTER is not a subtle overdrive.