Audio Technica makes a $108,000 headphone amp.
The selector switches are unlabeled, so there's a handy wedge-shaped guide that sits below the amp. That is certainly a design decision.
RIP Robert “Bobby” Caskin Prince lll, 1945-2026. In addition to being a Vietnam war vet and lawyer, Bobby is best known as the composer of the music for Wolfenstein 3D, Doom I, Doom II, Duke Nukem 3D, and a whole shit-ton of other games.
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