I have a 2000RB that I purchased a while ago. I remember plugging it in for the very first time and sparks and smoke erupted through though front grill of the amp. After which, it seemed to operate fine. A few months later one of the power amps went and I got it fixed under warranty. Then more problems started to pop up with sporadic cut outs and volume drops/spikes. In the end I just bought a new GK 700RBII to replace it but kept the 2000RB since I really loved the sound of it and it had some unique features that haven't been duplicated. Question is, how many of you had one of these amps and had trouble with it and did you have it fixed and find it became reliable? I remember researching and finding out there was an issue with the GK line during that time period, especially the 2000RB. Problem I see is it's been so long since the amp was discontinued that there may not be parts left for it and I honestly don't know if I would ever feel confident in using it in a live situation.