I purchased a Champion 600 last week. Love the little amp. Sounds great for a Practice/Small Session amp. Word of warning, be careful with it. I was on my way to a buddy’s house to get my pick on and the amp fell over backwards. The chicken head volume knob protrudes further than the back of the amp. The volume pot took a shot when it tipped over. The volume did not work when I got there and plugged it up. I took it apart and...You guessed it... it is a plastic pot, plastic shaft coming out of the pot, and soldered onto a green board with little clearance. The only moving part of the amp is plastic. Thought I should give a public service announcement on the subject though. I patched it up so I could play on it but as soon as I get the time, that baby is getting replaced with a pot that is a bit higher speed.