I currently have a C50 with a 452 McIntosh amp. I use the tape/processor loop with a Yaqin tube buffer, utilizing Psvane UK-6SN7 tubes. Wanted a way to warm up or smooth out the digital verse the great sound of our analog sources. This set-up works, and what is nice is the ability to either have the tubes or not with the push of a button on the preamp. I am always looking for a better tube buffer, but to date I have not found one that is both in budget and is the right size for my limited space. I also like the 6SN7 tubes over the 12AX7's, sounds better to my ears. Also many options for rolling.
With your C46 you should have the same results, while not spending big money. Good luck and enjoy the music.
With your C46 you should have the same results, while not spending big money. Good luck and enjoy the music.