In terms of sheer sound quality the best I’ve heard in my amplifier (Coincident Frankenstein MK II SET) in no particular order.
EML XLS, Takatsuki, Elrog and KR XLS.
The Elrog proved to be unreliable in my amplifier (supposedly improved now).
The other 3 are quite reliable.
I used the Shuguang Black Treasure 300b for nearly 3 years and it is a reliable tube. Good sound quality but not the same level as the upper tier tubes mentioned above (not as expensive either). This is a good value/performance choice of 300b.
Psvane makes good quality tubes but I haven’t heard their W.E.Replica 300b.
Charles
EML XLS, Takatsuki, Elrog and KR XLS.
The Elrog proved to be unreliable in my amplifier (supposedly improved now).
The other 3 are quite reliable.
I used the Shuguang Black Treasure 300b for nearly 3 years and it is a reliable tube. Good sound quality but not the same level as the upper tier tubes mentioned above (not as expensive either). This is a good value/performance choice of 300b.
Psvane makes good quality tubes but I haven’t heard their W.E.Replica 300b.
Charles