Wow, this reminded me of how much detail on technical specs about stereo equipment I used to carry around in my head. Cartridges for record players was a whole

Wow, this reminded me of how much detail on technical specs about stereo equipment I used to carry around in my head. Cartridges for record players was a whole separate section of my brain. I think I spent $300 on one once - in 1979 dollars, too.