I have for sale a near perfect GK MB500 head! The only damages are some very light scratching on the top from unknown causes (probably a cable or something, not sure.) It was recently sent the Gallien Kreuger repair center and the DI bits were fixed up, as it had a slight buzz coming from the DI output. It was repaired under warranty, and now it runs flawlessly and sounds great! Id hate to let this amp go but i have some things i need to pay for, so unfortunately i have to. Price is negotiable, however i had it stated currently as $425.00 shipped to the continental US via priority mail, OBO. If you would like any extra pictures, i will be happy to provide them. The pictures i have now show the back, front, bottom, and the 2 scratches on the top... Thanks for looking!