I'm going to be buying a blue D-Command once I can find a good price on ebay or reverb. What type of things should I look out for? Like ways to tell if things are wrong or something. Like ways to tell if faders, power supplies, etc are going bad or are bad. Not really sure what to ask, I just don't want to get ripped off. $2000 to $3000 isn't really spare change to me. Thanks for the help
