- Level
-
Sets the output level.
- Drive
-
Sets gain and overdrive.
- Blend
-
Blends between normal and tube emulation circuitry.
With Blend at 0, Drive and Presence are not active.
- Bass
-
Boosts or attenuates low frequencies.
- Treble
-
Boosts or attenuates high frequencies.
- Presence
-
Boosts or attenuates upper frequencies and attacks.