OK, I got the tubes a few days ago and have started to give them a listen. So far i can say that they are an improvement. The difference is subtle but its there.
From what i can hear they have added a bit more transparency and extension, especially in the lows. there is also a bit more bass. Not much but i welcome it with my 702's.
And, I no longer here any hum with my lower impedance phones. Which is nice.
I'll let them break in some more and post any more changes i notice.
Edited by Farnsworth - 9/5/10 at 10:21pm