I've had this for about two years but I'm not currently in a band and it doesn't see much use, so I could use the money for other things. Is in fine working condition, as you can see from the picture a couple minor cosmetic issues (slightly tolex peel on the seems, top hardware a little rusty, at some point the mid selector knob was changed). Comes with an ATA-style case and some extra tubes. Asking $600, the only trade I would consider is an Aguilar AG500 (the two channel version). Keeping this local to Philadelphia or a reasonable driving distance for now, the shipping costs would be a lot otherwise.