I purchased this fine preamp 19 months from a local authorized Mcintosh dealer. It has been well cared for in a smoke free enviroment. I have looked hard and cannot see any blemishes. As far as I know it is perfect. All functions work perfectly. The phone preamp tubes have about 10 hours on them as you can turn them off from the front panel because I don't have a TT. The unit comes with all orginal packaging, remote and owner manual. You will not be dissapointed. I also have a MAC MCD 301 for sale too. Make offer for both. High res pix upon request.