Rolling KT150s in Primaluna hp integrated

I prefer the sound of KT120s over 150s (I used 'em in both a push-pull and a single ended amp, the use of which was approved by the manufacturers of both amps) for reasons I can't explain as they're subtle, or I can't remember what they are. Something about the sound of the music when listening to it (take THAT pesky reviewers!). I like the "look" of 150s more…they're cool…however, another plus is that the 120s are relatively inexpensive these days.

That’s interesting Wolf. I’m thinking the 150s sound a bit more solid state—in good ways and bad. They seem to be a marvelous tube in their own right. 

Now you have me wanting to hear the 120s too. 

Jb I feel the KT 150 tube is about as ideal an output in a pp design for my purposes. I recently installed a matched quad of cryoed 150s in my quicksilver silver 88s for further refinement, such subtle nuances were further revealed. Don’t really know what is going on but I can’t imagine things getting much better. I hear no downside but then again tubeoholics have different goals and values in what their focus is. It is definitely not a "tubey" or unduly colored tube for those inclined toward that end. It just sounds more like real music to me.

tubegroover,

I appreciate exactly what you are saying.  I think the KT150s are super musical. They are as close to neutral in coloration that I've heard in power tubes.  

Like I said…not sure why but in the amps I used them in (a factory upgraded Jolida 502P, and a Dennis Had "Inspire Fire Bottle" single ended thing) they were too similar to the 120s…since I sold the 150 quad with the Jolida amp I might still try a fresh pair of 150s at some point, but for the Had SEP amp I still have fresh Gold Lion KT88s, Sovtek KT88s (Which are sort of great sounding) and new KT120s…so I'm in no hurry I guess.