Hi TTripp!
There is no Mastervolume in the Schmidt!
Channel 1 has a volumeknob and channel 2+3 have gain and volumeknobs.
3 volumeknobs for each channel but no mastervolume.
If you want to change your overallvolume you have to change all volumeknobs.
Its not so comfortible but its much better for dynamicsounds.
You will love the Schmidt but its a different amp from the Einstein and the poweramp will not only just make it louder but produce more saturation!
So long Rolf