True and the mellow button scoops the sound out too much. I've run an eq pedal through the DI loop with great results. I find overall the best set up is: Mellow = off, Bass at 12 with Low button on, Mid at 3 O Clock, (doesnt really matter what mid shift you use) and Treble at 12 with high freq. 'on'. Crank up volume to almost max and use the gain to control the loudness.