The BASS V-AMP PRO's 32 amp models are organized into three groups: Clean, Acoustic and Guitar. Just twist the dedicated dial to plug into unbelievably-authentic simulations of iconic acoustic and electric bass sounds from the 1950s to today. When you select an amp model, a speaker cabinet model is automatically selected. But if you'd prefer a different model, just go to Edit > Cabinets, then use the Bank Up/Down buttons to navigate through all the available options. Just like on other instrument amps, you've got a 3-band EQ, Gain, Volume and Master volume dials, and a state-of-the-art, onboard Compressor for tight, smooth tone with a user-adjustable variable attack. Plus, when you hold down the Tap button, the Treble dial doubles as a Presence control to top-off your tone.