The Tone City Big Rumble is a pedal that has some interesting features and is suitable for different styles of music. Firstly, it has a function that can adjust the ratio of original sound and overdrive. The guitarist can mix the clean and drive sound accordingly using the clean control. Secondly, the guitarist can use the "Attack" control to adjust the depth and density of the sound colour. This function is so practical that it is also suitable for metal. In addition, the guitarist can influence the distortion and viscosity at different levels in the Jazz and Rock modes. Big Rumble is equipped with the same clean boost as the Holy Aura and offers a maximum gain of 20db. This clean boost is so brilliant that it has been built into this model to provide additional sound shaping options.