The most underrated component in a vinyl system isn't the cartridge. It's what comes after it.

A phono cartridge produces a signal so small — typically measured in millivolts for a moving magnet, microvolts for a moving coil — that before it can drive anything useful, it needs to be amplified by a factor of between a hundred and a thousand. This enormous gain happens in the phono stage, and at that amplification factor, everything matters: the noise floor of the circuit, the quality of the active devices, the power supply. Any weakness in the phono stage gets amplified right along with the music.

Enlarge a snapshot to poster size and every speck of dust becomes a boulder. Same principle.

And then there's the RIAA equalization curve. Records are cut with the bass rolled off and the treble boosted, which allows the grooves to be cut closer together and the stylus to track cleanly. The phono stage has to undo this — applying a precise complementary curve to restore flat frequency response. If that correction is even slightly off, you're listening to a subtly altered version of everything the record contains.

How many of us have blamed the cartridge for what the curve was doing?

A great phono stage does both of these things nearly perfectly. It adds gain that is essentially noiseless, applies equalization that is exact, and stays out of the way of the rest of the music. The cartridge gets the credit. The room gets the blame. The phono stage, working invisibly in between, is often neither.

This belief is where PS Audio began. Our very first product, back in 1974, was a standalone phono stage — built because the ones tucked inside the receivers and preamps of that era weren't doing records justice. It outperformed many of them, and it launched the company.

Fifty years later, I've heard vinyl systems transform — not with a new turntable or a new cartridge, but with a better phono stage. Because the signal is at its most vulnerable there, care invested there pays back through everything downstream. Few upgrades in audio repay attention so generously.

The quietest component in the chain has the loudest say.

Give it the care it deserves, and every record you own gets better at once.