OLLO Audio X1 Review: Can a Studio Headphone Be HiFi?

An open-back studio reference headphone with AI-assisted per-unit calibration (±1dB), modular design, real wood cups, and a flat tuning that works for both mixing and music.

Verdict: Highly Recommended - 8.9/10. Price: $549.

What's good

USC II per-unit calibration to ±1dB tolerance

Real wood machined earcups, no veneer

Modular, repairable, service-friendly design

Hybrid velour + perforated leather pads, user-replaceable

Locking dual 2.5mm cable with forward-angled entry

Sturdy hard carrying case included

32Ω / 101dB - works from any laptop or interface

Realphones-compatible mix translation profiles

Worth knowing

Tight clamp force - takes adjustment if you're used to looser cans

Soundstage is realistic, not impressively wide

Tuning is intentionally flat - some will call it boring

Packaging is minimal - not premium-feeling

Pads are functional, not luxurious

Not the cheapest at this price point

Read the full OLLO Audio X1 review on The Audio Stuff