Kevin at Upscale Audio knows this unit well: he sold me some NOS Mullards which really made my C2200 come to life. Give him a call, he is helpful on the phone. Joe
YES WHEN I GET C2200 I REPLACE TUBES WITH TELEFUNKEN 801S AKA12AT7 AND TELEFUNKEN 12AX7.IT IS MUCH BETER NOW.WAS NOT TO CRAZY WITH MCINTOSH TUBES MADE IN CHINA
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