I'm currently selling my 2nd Ashdown ABM 500 I own. I had two, this was my backup head. The thing is, my main ABM head never gave me an issue. There's really no point in me dragging this around. This head has very little use, so all of the components, pots and slides are working and functioning perfectly. The head is in mint condition, the only thing I can honestly say that's wrong with it is one of the side screws is missing (see last picture). Asking $500 shipped/insured lower 48. As for trades, I'm only considering 100W tube heads or an Orange Bass Terror. Money your way obviously.