I'm not sure if I had the answer, how exactly I'd be helping? Use your ears, not your eyes for achieving your tone! And yes, the controls are very interactive: The presence and mid control can get interesting as they're turned up together, yet more presence will elicit more low thump? Also, the presence control will differ between the vintage and modern modes! The treble is the strongest of the controls, and even the amount of gain will affect things! Versatile for sure!