It’s on the low side but not obnoxious, as I said it could be 242’s in my pacific.
Lampizator quoted me minimum input impedance of 20K Ohms with PX25’s they have like a 3rd of the plate resistance of the 242’s, so it’s quite possible 242’s are requiring higher.
I was also using SE on the pacific, which probably makes it worse, since you have in effect 2 tubes in parallel in balanced, and that basically 1/2’s the output impedance.
Yes I read something about part of the Horizon/Poseidon design is about better output impedance.
It’s more interesting that anything, as I said I’ve never heard such a dramatic mismatch. I’m glad I moved it to test on the TotalDAC now.