I have a similar amp to the R-8 (Cayin CS-55a), I found it sounds much better with the KT-88 tubes. I am using Gold Lions right now. The sound is much more clear and detailed than with the EL34.
Pass INT-25 better than Wilsenton R8?
I have recently purchased a Pass Labs INT-25. It replaced a Wilsenton R8 with NOS tubes (EL-34). I feel that the sound im getting from the Pass is not 5000.00 better. Has anyone purchased a INT-25 and not been blown away from the sound? I do think that the 25 has a wider soundstage.