Congratulations Dennis! Glad to know you've found a good tube combo for your system! The Syrah quite simply transforms a system into something much more.
Regarding the Ken Rads. There are actually 3 different versions, each with unique sonics. I know you said the KR's you had were VT-231 but make sure they actually say VT-231. There are KR's which do not say VT-231 (they usually say KEN RAD and that's it) and these are the darkest (dullest) of the lot. Still quite good but not to everyone.
Yes the KRBG are very good in some systems but not necessarily good in all systems. The Ken Rads tend to burn a little hotter than other tubes and wear out faster for whatever reason. As a result they can be noisy - especially if they were previously used in an amp.
Regarding the Ken Rads. There are actually 3 different versions, each with unique sonics. I know you said the KR's you had were VT-231 but make sure they actually say VT-231. There are KR's which do not say VT-231 (they usually say KEN RAD and that's it) and these are the darkest (dullest) of the lot. Still quite good but not to everyone.
Yes the KRBG are very good in some systems but not necessarily good in all systems. The Ken Rads tend to burn a little hotter than other tubes and wear out faster for whatever reason. As a result they can be noisy - especially if they were previously used in an amp.