[MrFixr55]

What may be lacking in the PP Tube amps may be the 2nd harmonics, which some, especially RCA back in the day called "euphonic".  (Of course if an amp had <5% distortion, RCA called it "distortion free".)  I am not sure, but I thought I heard some pipe organ builder state that 2nd harmonics are pleasing.  I have 2 815s and want to build a dual P-P amp with those.  I had a good ear as a kid and can sing mostly on key (not with a good voice but at least on key), but I can't hear the whine of a flyback or the ticking of a watch anymore.  Not from rock or heavy metal (both of which I despise), but from being around too many machines, engines, etc. without ear protection.  Standing 3 feet in front of our church's 62 rank pipe organ (<3000 pipes)  (Oops, that's >3,000 pipes, gotta stop doing this in the middle of the night) with the choir may not be great for my ears, but I absolutely love it!