I have met so many wonderful people online through WBF. I really value the insight I learn from the many threads that are posted.
Through WBF, I conversed with Ray from Calgary. We have talked on and off for the last year. Out of the blue, he asked if I was available for a visit to Arizona. That is a long plane ride. He wanted to hear my system and frankly get out of the cold.
He also has a Horizon. We decided to do a shootout of three conversion tubes. I already solidified the Sophia Electric Aqua 274B and the NOS Tung Sol 6550 from the 60's.
I completed an extensive tub-rolling exercise as penned earlier in this thread. We started with the Phillips Mullard ECC81, which is a new NOS tube for me. After an hour I put in the Brimar Yellow T 6060. Ray immediately said wow a major uptick in sound quality. Everything was just more vibrant with more bass and a wider soundstage. I did not tell him which was my favorite tube because I wanted to hear his comments.
The last tube I stuck in was the Brimar 13D9. This has been my favorite tube so far and Ray totally agreed. He absolutely loved the tube. I gave him a pair to listen to in his system back home, so I will be anxious to get his feedback.
It is amazing that Ray flew from Calgary to Arizona to hear my system and to meet for the first time. Thank you WBF for having such a great place to discuss our hobby and thank you Ray for your insight on my system.