The main outs are balanced 1/4" ring tip sleeve jacks or unbalanced 1/4" jacks. Aux out 1 and 2 are not balanced. There are also stereo 1/4" inputs. No digital outs are provided. There are 3 pedal jacks on the rear which use Generalmusics "Auto-Pedal Sensing" technology which makes it very easy to configure different types of pedals. Each of the back panel connectors marked DAMPER, PEDAL1, and PEDAL2 can be used to connect either a footswith, (like a damper/sustain pedal) or a continuous pedal (like a volume pedal). Whenever you insert a pedal into one of these jacks, the Promega automatically runs a check on the pedal to see which type it is and configures the Control menu accordingly. If you have no pedals connected, you will not see any of the options in the screen. If you connect only a Damper then you will see this in the disply, etc. The system is intelligently designed so that, if you are only using one pedal, you don't need to see menus for the other two pedals which you don't have. In addition to determining how many pedals are connected, the system can also tell which types of pedals have been connected. There are three different types of pedal commonly available. Footswitch with normally closed contacts. Footswitch with normally open contacts. And contrinuous or "volume" type pedals. Just thought I'd pass this information along.
George Kaye
Kaye's Music Scene
Reseda, California