Hi McGyver!It's output resistance is high. And what for is the potentiometer at output? It makes things worse.
Why are you going to use buffer for CD player? What problem with CD player do you have?
What DAC chip do you have in this CD player? Maybe modification of analogue stage of your CD makes sense?
Hi ,The tube buffer between a source and amp can only spoil the signal quality and never improve. If you are unhappy with sound quality from your Technics CD player, then sell it on ebay, buy cheap Denon based on PCM56 or PCM61 and replace it's analogue stage with passive conversion followed by tube gainstage. The working example you can find on my site: Odtwarzacze CD (must do some scroll down).
Yes, yes, for I get it a good tube sound!!As I stated before, insertin a buffer between source and amp can only affect the sound, and not to improve. Are you sure you want affect sound quality in your system?