my faithful XR-600B.....had it many years..just got it back from factory authorized refurb shop.everything works. i seem to have dropped one of the XLR intake shrouds(see photo). channel still works fine.easy cosmetic fix. I have stopped playing due to stroke,so mama says to "get rid of all this junk !" too expensive to ship,so local pickup only. I hope someone else has as much fun with it as I have...:)