Acoustic Amps owners.....Acousti-Comp feature adjustments?

I have a backline amp offered as an Acoustic B300C so doing a little ahead research and looking at the manual online it doesn't say anything about adjustments to the compressor settings- just the small button to turn it on/off.
Anyone know if there is ability to adjust?
Also, this material is old vintage jazz bass with pick and foam type stuff. Will the "vintage " settings in the B300C manual get me close to a Joe Osborn tone?