After so many years struggling with volume control of C28, I decided to buy Mcintosh after market volume control. It arrived today plus $57.00 brokerage fee from UPS!. For the price I paid, the part does not look well made. I am just hoping it will do the job and last so that I can enjoy my C28, which is now sitting idle. I have been using a Denon preamp in its place. Unfortunately I won't be able to install it until early December and report the results once it is done. A couple of photos attached.