In my sophomore year of high school, one of the greatest challenges my friends and I faced was the search for the perfect after-school hangout, perfect being defined as "having the least amount of adult supervision." Some of us lived in single-parent homes, but only one had a single parent for whom weekday surprise inspections were impossible, and that was Scott. So Scott's place—a downstairs apartment in a nice older house not far from school—got the nod.

Everyone in the room can hear the difference when I swap one phono cartridge for another. Same thing happens with loudspeakers. This is because both of these magnet-based transducer technologies are electromechanical devices, traditionally made of paper, wood, iron, and copper. (Nowadays, polymers, aluminum, and carbon composites are more typical.) Both are motor-generator mechanisms that either convert mechanical energy into electrical energy (cartridges) or vice versa (speakers). As audio devices, they are spool-and-wire simple, but even tiny changes in the materials and/or how those materials are configured can cause easily audible differences in how they transmit or present recordings of music. Why? Because every gross fragment and subatomic particle of these electromechanical contraptions is moving and shaking—shaking everything from the tiny jumping electrons to the wood, metal, and/or plastic containers that fix and locate these motor generators in space.

For some time now, I've been thinking that my record player was due for an upgrade. My Linn LP12 turntable and Ittok LVII tonearm are about 25 years old, and my AudioQuest AQ7000nsx cartridge is going on 15. During that time, my listening has become increasingly dominated by CDs, but I am not yet ready to give up on LPs. Updating my LP12—for which I have Linn's Lingo power supply but no other upgrades—would involve installing the Keel subchassis, for $3250—for which price I could get another maker's new, current-design turntable and still have the LP12 to sell. The Linn Ittok can't be upgraded, and its replacement, the Ekos SE, costs $4950—out of my range. AudioQuest no longer makes cartridges. Examining my AQ7000nsx's stylus under a microscope showed no visible wear, and there was no obvious audible problem that could be traced to the cartridge's suspension, but age must be having some sort of effect. Taking all these factors into account, I decided to replace my entire phono front end.