This allows you to easily and smoothly control the volume and effects parameters. Also what the lower limit is and what position (toes up/heel up) is the maximum can be determined. The DVP3, as a larger version, has a bit of a bit compared to the DVP3. The AUX-jack is split into the Exp and Tuner jackets, which no longer needs to be switched inside a button. The housing is built of solid aluminium and the drive has an extra low friction, which means that you don't have to be afraid to break anything.