MC275 Tube Rolling...

Lots of talk about this tube so I bought a quad set; hopefully, what I've read will be duplicated in my system...

5 years later, I have settled down to the following tubes...

KT88 Gold Lion
(will try black treasure one day)

V1 (12AX7A)
RCA GP 12AX7A

V2,5(12AX7A)
Mullard Blkburn GP 12AX7A

V3,4,6,7 (12AT7)
Sylvania Gold Brand TMBP 12AT7wA (aka 6201)

Tell us, please, what you hear with the new tubes?

Thanks (RWD)

I've never owned a Mac amp. I'm presently using a Music Reference RM-200 but I just want to inform some of you , who may not aware, of a very little talked about KT-88 tube. It's called Canada Fuller. I've read it's designed in Canada and manufactured at the Shuguang plant and I wish I could find more information on it besides that. My favorite KT-88 before that was the Golden Lion. But this tube, to my ears, has better bass, and more detail in the mid range as well as in the highs. I first bought it from Parts Connextion, but now I can only find it on eBay. It's a sexy looking tube and so far, after over a year of using it nearly everyday, it seems to be reliable. Just a heads up, for some reason the prices have risen nearly $80.00 since I first purchased it. But I intend to buy another set as a back up. Just my 2 cents and a recommendation.

Sorry on the above post. Meant to write Gold Lion.