Well i got my "NEW" amp yesterday. I had to use the headphone out through my big home stereo aux. jacks so i can hear what it sounds like. My first impressions, I like the warm tube pre-amp, I've been playing through a GK 400RBII 2-10, 1-15 rig at church, tomorrow I'll plug in through those cabs and get the full effect. I'll revisit this thread after that.