Empire Ears ESR MK II In-Ear Headphones - Open Box - Discontinued kanto 5 mm and 4

5 mm and 4

or an audiophile listening from low-impedance sources

Over the course of 3-years of intensive research and 9 working prototypes deployed in real-world applications

Sensitivity

Empire Ears ESR MK II In-Ear Headphones - Open Box - Discontinued kanto 5 mm and 4Empire Ears announced the closure of their business on February 27th, 2026. While you can no longer purchase Empire Ears, you can browse our collection of IEMs. The Empire Studio Reference ESR has invariably found its way into the hands of recording and mixing engineers the world over. Endorsed by professionals from every corner of the globe, the ESR was the detail king of the Empire Ears line up, and now the MKII version's inclusion of a dual EST