On the 2882, the offset is done in the digital domain. You can adjust the output trim BEFORE you put the outputs into monitor control, and it will use that analog gain as the basis point for the maximum output level. On the ULN-2, all monitor controller gain is in the digital domain, but you can adjust the maximum level via the front panel knob for the monitor output. On the ULN-8 and LIO-8 all monitor controller gain is in the analog domain (a big plus for the LIO-8/ULN-8)!