For an audio reviewer, too, this presents a challenge. What do you write about when the component under review has no sound? That said, every audiophile has particular sensitivities, things that especially bother them—and also insensitivities, things other people hear easily and avoid that they are more or less immune to. I know that's true of me.
I won't talk about my insensitivities—not here—but a particular sensitivity of mine—and it is a useful one for a reviewer—is to the electrical character audio equipment can take on. Every amplifier—indeed, every element of an active hi-…