So there is a Rocktron Velocity 300 on eBay with a buy it now of $100 (thanks Rick! :wub but the power amp does not work or put out anything. I asked the seller for details and they said "when I first obtained it it worked fine, but the volume pots are some what crackly but I never used them, so I didn't care. Then I moved, and after I plugged it back in one side didn't seem to work. A few weeks later, when I checked it out again, it wouldn't do anything on either side. I'm no technician, but I don't see any burns or signs of excessive heat." Now, I've gone to school for some electronics work and I do that stuff as a hobby, and I know my way around a circuit board with a soldering iron...my question to you guys though is do you think this is a good deal or not? Any idea what could be wrong?