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Empire Ears

Empire Ears ESR mkII

Every decision made in the recording, mixing and mastering process relies on the truth and that’s explicitly what the Empire Studio Reference (ESR) MKII delivers; Pure, neutral and unadulterated sound reproduction with unrivaled detail retrieval. The ESR MKII is the next generation of the ESR and is consequently the best studio reference in-ear monitor we’ve ever crafted.

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The ESR MKII features an upgraded 5 driver hybrid configuration, consisting of triple balanced armatures and dual electrostatics, alongside a completely reengineered 4-way synX crossover network driven by EIVEC and ARC technology to effortlessly reproduce the sonic transparency and critical details needed for monitoring, mixing and mastering.


The ESR MKII is Empire’s flattest in-ear monitor and it delivers true-to-recording dynamics, ultra-fast transient response and wide dispersion to meet the needs of music, cinema and broadcast production.


-5 Proprietary Drivers, Hybrid Design

-3 Proprietary Balanced Drivers - 1 Low, 1 Mid, 1 High

-2 Premium Electrostatic Drivers - 1 High, 1 Super-High

-4-Way synX Crossover Network

-EIVEC - Empire Intelligent Variable Electrostatic Control Technology

-A.R.C. Resonance Mitigation Technology


3.9 Ohms @ 1kHz

Frequency Response:
10 Hz - 100kHz

111dB @ 1kHz, 1mW

Bespoke Alpha IV UPOCC Copper Litz


About Empire Ears

Empire Ears is unique in its ambition to design the extraordinary and achieve the impossible. Driven by passionate engineers, talented musicians, and exacting audiophiles they are utterly consumed by the desire to create the world's finest in-ear monitors. Empire Ears is family owned in Atlanta, Georgia and with over 30 years experience in acoustic engineering and manufacturing spanning the medical, consumer, and professional markets. Every one of their in-ear monitors are handcrafted by meticulous artisans and tested against the highest standards to deliver a product that you can be as passionate about as they are.