Primaluna Dialogue Premium power amp vs. Dialogue Premium HP power amp?

I have the PL HP integrated, not the amp.

From what I understand, it's pretty much the same underneath the hood, with the exception of 4 more power tubes.  Probably a subjective difference, other than obvious headroom when you  turn the volume knob.

I would like to try the KT 150, but 8@ $100 each, a bit steep. I use some old 50's 6L6's.

Thank you for the feedback. I bet the vintage 6L6's sound good. I like to run the amp in triode mode often and the 150s are great for that. Thanks again tablejockey.