Vintage Peavey K M-4 Keyboard Mixer Peavey 80's - AS ISNotes SELLING AS IS, has not been tested exterior shows signs of age Powers on, but has not been tested further A Vintage Peavey K M 4 Keyboard Mixer Peavey 80's AS IS in Poor condition! At Evolution Music, we attempt to highlight cosmetic defects (if any) by picturing every angle of every piece of gear so you know exactly what you are getting. We always picture any and all accessories too. What you see is what you will get so please check out the