Audio-Technica ATH-M50x vs Sony MDR7506

The M50x is the pair most people land on when they ask for studio headphones, and the practical case for it over the Sony is the cable. Three leads are supplied (coiled, long straight, short straight) and each locks into the cup with a quarter turn, so a damaged cable is a two-second swap. Over a five-year ownership that is the difference between a working headphone and a drawer headphone.

The 45mm drivers give it more low-end weight and a more relaxed treble than the MDR7506, which makes it usable as an everyday headphone rather than only a work tool. Isolation is good, the cups rotate flat and fold in, and the pads are a stocked replacement part.

The tuning is the caveat for critical work: there is a modest bass lift and a slight upper-midrange dip, so it is a headphone you can mix on once you have learned it, not one that is neutral out of the box. Clamp force is high when new and takes a few weeks to relax, and the cups are on the small side, so larger ears sit against the driver baffle rather than around it. Owners consistently report the pads flattening and cracking after a couple of years of daily use.

The MDR7506 is the headphone clamped to engineers in half the studio photos ever taken, and the reason is a specific tuning choice: the treble is pushed forward, so mouth noise, clipped edits, sibilance and room hiss surface immediately instead of hiding under a flattering curve. For catching problems, that is the correct instrument.

It is closed-back and isolates well enough to track vocals against without bleed reaching the microphone, and it folds flat into a supplied pouch. At 63 ohms and 106 dB, any audio interface headphone output drives it to full volume.

The compromises are all long-known. The cable is a coiled three-meter lead permanently attached at the cup, so a snagged cable means a soldering iron, not a swap. The stock faux-leather pads flake and shed black flecks within a year or two of regular use, though replacements are a commodity item. And the same forward treble that makes it useful for editing makes it tiring for a long listening session, which is why almost nobody uses one for pleasure.