I used to own a 100 watt(both the AOR and it's modern day counterpart the GH100L).......the AOR version is a single channel with switchable 5th gain stage and the eq are push(passive)/Pull(active)knobs and sonicly kinda like a hot-rodded JCM 800 gainwise.........If a JCM 800 and aBoogie mark series had a love child........Laney is what you get.......all though i think the GH100L(the modern day version of the AOR))is a much better choice tonewise.