Just upgraded to the factory matched Raytheon 6ak5, it does seem better but without a way to quickly AB test them with the old tubes it's hard to say for sure :)
Anyone know what the gain is on this amp? I just got some modded Fostex T50RP and it seems to pair great and has plenty of power for them. I have the dial at about 9:15 for music listening and it's loud.
I'm still waiting to receive my hifimediy dac, slow shipping