My dear audiophile friend, who is now too ill to have fun with this hobby, and I found out about HP's feet of clay early on, I think around issue #3 of TAS, when he went wild over the then new Harman Kardon solid state preamp (Citation 12, I think). He and I auditioned one and found it to be just plain awful, "shrill" is the best single word description. This was our first bit of evidence that HP favored a very clinical sound with exaggerated hf response. What HP did do that makes him memorable is to invent a language that can be used to describe the differences in sound among audio components. In that way he was/is a genius.
To his credit, he did also recognize the Audio Research products early on. His endorsement of this and other tube gear was a seminal event in shattering the notion that solid state was inherently superior to tubes just because it measures better in the then common analytical tests. (This is not to say that present day SS gear is in any way inherently Inferior to present day tube gear. Don't want to start a war. The SS gear of the early 70s was like early digital gear of the late 80s.... not so good sounding but great in the laboratory.)
To his credit, he did also recognize the Audio Research products early on. His endorsement of this and other tube gear was a seminal event in shattering the notion that solid state was inherently superior to tubes just because it measures better in the then common analytical tests. (This is not to say that present day SS gear is in any way inherently Inferior to present day tube gear. Don't want to start a war. The SS gear of the early 70s was like early digital gear of the late 80s.... not so good sounding but great in the laboratory.)