Hey Lee, I finished up the C2 and had to order the headphone volume pot. I fucked with it for several hours but it's worn out. I had 2 Carver C-4000's on the bench and had to move on but the pot will be here in 2 days and then it only takes a few minutes to swap it out. Of course, it didn't have a Alps part number so I had to spec out a suitable sub. It had R10-4019-05 as a part number but I did the caliper thing and found a dual gang 50K pot from mouser...... Sucks, the $4 pot cost more to ship than the price. I had some 50K dual's but they are too big. The headphone amp also routes the signal to other places otherwise it wouldn't have bothered me to bypass it. Thanks man..............