EL34 vs 6CA7 vs KT77

I have some of those Siemens. They are sitting on the shelf while I use new production EH 6ca7 daily, because these are cheaper and don't do anything I find offensive. I don't really find much to get excited about the NOS Siemens, but amps are different. I haven't tried the Genelex or shanguang.

In my VAC PA 35.35, I was using "Winged C" and EH Gold Dragons. I swapped out all the tubes at once, the smaller tubes are now NOS Telefunken 12AT7 and 12AU7. The EL34's are Mullard reissue with the Groove Tube label. The change these tubes made was amazing, it transformed this old amp from sounding ok, to an amp that is maybe the best I have owned, and one of the best I have heard.

Best of luck,
Dan

Mtb ww - I have compared Winged C EL34s to EH 6CA7s in Cyber Consonance 800SE monoblocks. To my ear, listening to Totem Forest speakers, the Winged Cs seem to have a little more warmth and possibly a tad more bass depth but the EHs seem to present a larger soundstage with more air and upper frequency extension. I will probably switch betweeen the two from time to time but right now I'm listening to the EHs. I expect results will be system dependent.

Sfar, I know this is a very subjective question, but how would you compare (tone, soundstage...) the "C" EL34 to the KT-77s?

The Siemens you can get from RAM Labs are the best I have heard on my Music Reference RM9SE, but purely on hearsay, it does seem there is a lot of good feedback on the Genalex KT-77 reissues. Oh, you are right, it is not only subjective but perhaps only valid within the context of a particular amp driving a particular speaker, you really do have to try them to really know. I would call Jim McShane who listens to alot of these variants - he really does like the Genalex though....