Both are set via dip switches located on the back of the unit so if you have an easy access while you play your records, then you can probably adjust the values. However, it seems to me unless you have a preamp with a remote or a knob that allows you to adjust settings with one touch, you should not do that. I'm sure such luxury comes at a cost, which would explain why preamps with such functionality cost a few k more than the Chinook. I'd rather the designer focused on what really matters rather than accommodate audiophile OCD.
