Have you rolled different 12Au7's? I found Telefunken's to do the job much better over the stockers as well as a variety of other brands.
I upgraded eventually to a Marantz SA11 S1 from the Cary. Nice difference in natural presentation and dynamics. No congestion at all compared to the 308T.
I upgraded eventually to a Marantz SA11 S1 from the Cary. Nice difference in natural presentation and dynamics. No congestion at all compared to the 308T.