high level inputs

When I bought my REL sub I used the high level connection as the instructions recommended. My amp was class AB, and that was the first case explained in the instructions. The high level cable has 3 wires: black, red, yellow. For an AB amp, you connect the red and yellow wires to the red binding...

Hello this is my first post here, I'm in no way a expert, just trying to learn and not damage my equipment along the way. I'm thinking of buying a S.M.S.L AO200 and have been trying to find out if its possible to connect it to a subwoofer with a high level speaker connection, the reason I ask is...