Linlai E 6sn7 tubes

I doubt that there is any difference, the global branded tubes might be screened a little better is all the difference would probably be if any.

I find it had to believe Linlai has created two completly separate product lines.  The "marketing" ploy would seem more logical. 

@bigtwin  It is great marketing to make the Westerners think they are getting a tube made specifically for their preferences. And the higher price can also be a marketing ploy for Americans.

If you've read through the thread, many members believe the two tube types are the same. Adding the vertical logo to establish a different brand is easily done. But, earlier in this thread, photos show the two tube types have different bases. Why bother with this modification when a different logo satisfactorily separates the two brands?

I'm done speculating as to what Linlai is selling. The fact that Don Sachs uses the E-6SN7 from a Chinese vender is very telling.

Just to refresh my evaluations. The bottom line is: I had the 2 different tubes at the same time. There is a difference between the Global & the non Global in my system. Why don't members just try for themselves @ the cost of return shipping. This would stop all the inane posturing that's being discussed about these tubes. This weekend I changed Carts on my GAE from Hana ml (240) hrs. to my Cadenza Black (83) hrs. on an SME 309.

With the Globe's, my system has NEVER sounded so good. I have K/R, Sylvania JAN & Tong Sols, tried every combo & with the 4 Global in my Don Sach's their staying.

Hi @danmar123,  thanks for the info.  Very helpful.

Just curious, did you get the 'Global' tubes from Linlai directly or Grand Fidelity?  If they're from Grand Fidelity, did you get their "Top 10% Ultra Low Noise" ones for $40 extra?

Thanks.

@xcool , I ordered from LinLai in China & they sent my order to G/F.

Yes I purchased the top of the line, "ULN" so there was no 2nd guessing.