I've heard some "sterile" tube gear, in fact, I have heard sterile-sounding tubes, and I've also heard warm solid state amps.
I sense he's a cynic, borne from a sort of ignorance, and the question is rhetorical because he already knows the answer.
I sense he's a cynic, borne from a sort of ignorance, and the question is rhetorical because he already knows the answer.