5AR4/GZ34 Rectifier Tubes

I just got a matched pair of Ken Rad 1942 6SN7GTs on eBay for back up and am planning to send off to cryo lab ASAP. I figure, what the heck, why not?

Geoffkait,

Very good! The Ken Rads are very good but if you want more air, dynamics and bass the Sylvania VT 231 are even better...

Wig

Wig, thanks for the info but I am under the impression from what I read on the www that the early Ken Rads are the King of Bass. My current Sylvania Badboys are not bass shy. It is a wee bit peculiar that there are often conflicting opinions on tubes in general, but it is especially odd that it's hard to get consensus on these expensive 6SN7 tubes. You pays your money and you takes your chances.

I acquired a pair of Sylvanias Bugle Boys a few days ago and they're even better than my Sylvanias VT 231; better precision, transparency and captures more low level detail, ambiance and a deeper sound-stage. My VT 231 are woodier/bloomier/thicker in comparison and is easily heard on cellos, violins and guitars, types of music I typically listen to...

That's interesting. Pardon my ignorance, what are Sylvania Bugle Boys?