Coming back to my question, posted several pages earlier, thank you all for the suggestions. I do not think, I would be able to find Lampi 45, will try to get EML Globe Mesh 45, but again, it would be difficult. The Tak recti is waiting for me, so I will get it first, it's a no brainer. I already got a pair of Tak 300B in my amplifier. To get another pair for my DAC would be quite expensive, considering that I also have RK 300B. EML2A3 is an interesting suggestion.
Found this list of tubes on the Lampizator side: https://docs.wixstatic.com/ugd/c6db56_f965437f3d4a49ba8f16ea322ad19a70.pdf.
It has some interesting tubes there, but not sure if they all will work in a GG2. For example, KR PX4 RK, KR 845 M, KR T100, KR 4A3 RK. Is it worth trying any of these tubes? Thanks.
Found this list of tubes on the Lampizator side: https://docs.wixstatic.com/ugd/c6db56_f965437f3d4a49ba8f16ea322ad19a70.pdf.
It has some interesting tubes there, but not sure if they all will work in a GG2. For example, KR PX4 RK, KR 845 M, KR T100, KR 4A3 RK. Is it worth trying any of these tubes? Thanks.