Rec a 300B for Wavelength Cardinal Monoblocks

Jrinkerptdnet - Thank you. I will indeed be contacting Gordon before pulling the trigger on different tubes. And I probably should have mentioned that, as I recall, the 300B tubes in my Cardinals are the ones that Gordon prefers. I just now took a look at those tubes and cannot easily make out the brand name.
Best Regards,
Steven

I have a Wavelength Triton Blue NCE and I use Western Electric 300B's, I bought them in 2000 and they still sound good.
I also have Treasure 330B's and they are ok for the money but not as good as WE.

If you get a recommendation from Gordon please post it , I was thinking about trying another 300b tube

Parts connexion has a sale on shuguang black treasures. I believe those to be your best bang for the buck. Lots of folks talk about the takasuki's being all that but the ones I heard weren't so great. I would rank them
Sophia RP
Shuguang BT
Takasuki
JJ
I haven't heard the EML mesh but there is lots of positive press on those. While the Sophia's sound great I would stay away from those as they are notoriously unreliable. Ymmv

Abill - I'll bet your Trition Blue sounds wonderful with those WE 300B's. One of the options I am considering is the less costly 300B tubes made(?)/used by Line Magnetic in some of their amplifier offerings. If I understand correctly, the LM 300B tubes are designed to reproduce (as much as possible) the sound qualities of the WE 300B's. But I find myself wondering if anyone has found a 300B tube they prefer over a WE 300B!

Analogluvr - Shuguang BT and Takasuki are two other 300B tubes I have read many good things about and wondered if anyone would recommend either or both. Thanks for those suggestions as well as the heads up on the lack of reliability of the Sophia's.

Hi Steven,
It's very possible Gordon Rankin may voice his amps with the W.E. 300b and thus it 'may' be your best choice. I believe certain amplifiers sound better with certain tubes. My ranking of 300bs differs from what others have posted here. I use the Coincident Frankenstein MK II which could require different tubes in contrast to the Wavelength (due to different circuit,power supply design,capacitors,transformers,wire etc.). The very best in my amplifier/system,
1. Elrog ER 300b
2, Takatsuki-TA and the EML XLS (excellent in my particular amplifier).

Next tier were the KR XLS 300B, Sophia Royal Princess and the AVVT 32B SL.
The reissue W.E.300b was disappointing in my amplifier but could be excellent in the Wavelength models. I have not heard the "vintage" W.E.300b. In fact the Shuguang Black Treasure was preferable to the reissue W.E. So different amplifiers as well as other sets of ears are major variables for ranking tubes. The Elrog in the Frankenstein is a sublime match. There's no substitute for actual listening which is what I did.
Charles,