Empire Ears ESR IEM Empire Ears
Empire Ears ESR IEM Empire Ears
Empire Ears

Empire Ears ESR


Regular price $899.00
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The ESR features a powerful 4-way synX crossover network with 3 proprietary drivers to reproduce the sonic transparency and critical details needed for mixing and mastering.

The ESR is Empire’s flattest in-ear monitor and it delivers uncompromising dynamics, ultra-fast transient response, and wide dispersion for use in studios and on stage.

Linear, Warm, Detailed

Building forth on the all-round capabilities of Empire Ears' acclaimed Spartan, the ESR offers similar neutrality, with an improved tuning throughout the spectrum. Combining greater body to the sound with a pleasant touch of warmth results in a more engaging midrange, while further improved extension provides even greater resolution. Accordingly, the ESR has evolved as the pinnacle of balance, providing one of the most linear signatures in Empire Ears' lineup. A bass that is neutral in quantity, but high in definition, and quick in pace; a smooth midrange that holds the line between forward and laid-back, and a precisely-tuned treble, delicately balancing between clear and smooth. But more than anything the ESR is a detail monster, offering the pinpoint precise imaging, clean separation, and high resolution of top-tier competitors, at a mid-tier price.

synX Crossover Technology

synX is a supercharged crossover design that designates more individual audio bands per driver than any other crossover technology currently in existence. By creating an ultra-wide, multi-channel highway our engineers can manipulate specific parts of the frequency range in order to precision craft the target response and eliminate any signs of phase incoherence between the drivers. synX is the industry’s most advanced IEM crossover technology with each model featuring its own uniquely designed synX network.

Proprietary Drivers

The ESR also utilizes proprietary balanced armature drivers which are purpose built for a specific target response. Our drivers feature specialized reeds and low-mass diaphragms to reproduce incredible detailed, true-to-recording sound while remaining efficient enough to be powered by everyday devices.

Bespoke Handcrafted Cables

Every ESR in-ear monitor includes a bespoke, handcrafted Ares II cable by Effect Audio. The Ares II boasts a proprietary blend of 26 AWG UPOCC Litz copper with ultra-flexible insulation for maximum signal speed transmission, performance, and ergonomics. Each cable is terminated in an ultra durable 3.5mm, 24k Oyaide gold plated right angle plug.

3 Proprietary Empire Balanced Armature Drivers
1 Low, 1 Mid, 1 High
Crossover Technology
4-Way synX Crossover Network
Tube Technology
A.R.C. Resonance Mitigation Technology
19.3 ohms @ 1kHz
Frequency Response
10 Hz - 40kHz
112dB @ 1kHz, 1mW
UPOCC 26AWG Handcrafted Cable by Effect Audio
  • Empire Ears ESR In-Ear Monitor Headphones
  • Handcrafted 26 AWG UPOCC Litz Copper Cable
  • Empire Aegis Case
  • Empire Dust Bag
  • Empire IEM Pouch
  • Empire Cleaning Cloth
  • Empire Cleaning Tool