Firstly: I Love Carvin Products and I don't want to bash them in any way. I really Really Love this little amp and want to get to the bottom of the situation. After playing mine for 100's of hours, I was pretty sure the BX500 was well beyond it's early growing pains. Then I took mine to a new Drummers house. When I powered up, All I was getting was a popping noise through the Cab's. This scared the heck out of me as I don't want to harm my Speakers. No lights at all were lighting up. Apparently the PC Board Fried(Probably the Power Supply or Protection circuit). I had been plugged into My Drummers Power Strip which he also had the PA plugged into. I got a Brand New BX500 and jammed on it at home for a few hours. Then back to the Drummers house and the same thing happened Only now No Popping. Just a very Low Static sound. (I was a fool for trying the same power strip again but hadn't considered it a problem yet). I tested the Outlets on the power strip and it's right at 120 Volts and 60HZ. That's about all I know how to test. I am now on my 3rd BX500 and I played it for about an hour at home and it works great. I have since bought a Hartke LH1000 and I've been jamming on it at My drummers house but using a separate outlet. I refuse to plug in the BX500 anywhere in my Drummers house for fear of some unknown problem. I love my BX500 and really want to use it worry free. I guess the question's are: Can I get a Power conditioner that will completely protect my BX500 from troubled Power supplies? Who makes the best one? How Much do I need to spend? Thanks for reading and for any recommendations.