aldnorab,
Congratulations on scoring a Model 2! If your output caps are configured anything like my first Model 2, output 1 may well be setup as a subwoofer out. When I bought my Model 2, I had two-way monitors and a subwoofer, so I asked Don to set it up as '1' for subwoofer and '2' to the amp.
Experiment with different gain settings until you find a setting which is the most pleasant sounding.
I liked my 'old' Model 2 so much that I decided to buy a second one after reading about how much improvement there was. I had thought I would sell my old model once my new model had burned in, but decided to keep both - one for a vacation system and one for my main system. I'm delighted with both of them. I have a Kootenay 120 as well.