Best power cable to use for Raysonic 168?

Samhar,
I have not done much tube rolling.I did try some Sylvania 6922 as well as the stock tubes but was not impressed. Quite frankly its quite confusing with all of the tubes available, different labels, and munufacturers and such. Although it would be something I would be interested in. One question I always had with the 168 is do all 4 tubes need to be replaced? I think the inside 2 are for the balanced end. Am I correct?
Russ

Oops... I meant JAN/Philips NOT Sylvania

I think that's correct, you can tell by leaving the outside tubes out for a moment, if you have sound your correct (won't harm unit I do it to check when I forget). I read that all four tubes affect the sound, with expensive tubes I run two and two cheaper tubes. My Ray came with EH-6922 and a spare pair of Jan-Phillips, the Jan-Phillips were better sounding to me! Once I heard the fullness of Amperex 6922 tubes i could never go back the sound is that much richer. It is a little daunting at first, here's are some good reference;

https://www.tubeworld.com/6922.htm some descriptions of sounds

also for prices;

http://www.audiotubes.com/bjtubes.htm

general descriptions;

http://www.audioasylum.com/audio/faq/joes-tubes.html

hope these help!

Take out "some descriptions of sound " that is my comment not part of the address!!