have a GK 1001RBII with box,cord and manual. The amp works just as good as the day I bought it. The casing does have a little rack rash that doesn't affect anything. I can e-mail pictures if you are interested. I'll even throw in a GK Bi-amp cable if you want one. I would like to recover what I paid so I am asking $460 for it. SOLD! THANK YOU TALKBASS!