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  • CrinEar Reference

CrinEar Reference

2DD + 3BA Reference Tuned In-Ear Monitors

  • Engineered for extreme tonal accuracy with world's flattest-measuring response
  • HODWS architecture: twin 10mm opposed dynamic drivers for realistic bass
  • Twin Sonion midrange drivers + Knowles supertweeter for precise mids and highs
  • 5-axis CNC machined aluminum shell with pseudo-custom geometry
  • Premium SPC cable with interchangeable 3.5mm SE and 4.4mm balanced connectors
  • 16Ω impedance, 104dB sensitivity, and 2Hz-44kHz frequency response
Regular price $339.00
Sale price $339.00 Regular price
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CrinEar Reference

CrinEar Reference

Regular price $339.00
Sale price $339.00 Regular price
Unit price

The World's Flattest In-Ear Monitors.

The Reference is purpose-built for absolute neutrality, adhering to a population-averaged diffuse field response tilted down by -1dB/octave, with a couple added decibels of bass for perceptual neutrality (compensating for stereo speaker bass response and IRL bass physicality).

*Based on adherence to population-averaged diffuse field response (JM-1) with a -1dB/octave tilt, measured on ITU-T P.57 Type 4.3 standard equipment.

OUTSTANDING FEATURES

Perceptual Flatness

While the Reference is engineered to achieve objective neutrality on paper, its tuning is further refined to deliver true perceptual flatness. Recognising the inherent differences between in-ear listening and far-field speaker systems, a subtle ~2 dB low-frequency lift is applied to restore a sense of physicality often associated with high-end studio monitors in treated rooms.

This careful adjustment bridges the gap between measurement accuracy and real-world listening, ensuring the Reference not only measures flat; but sounds naturally balanced and lifelike in practice.

Tuned for the studio Built for the stage

The CrinEar Reference is engineered as a true monitoring tool, delivering realistic, true-to-source playback for critical listening and mix evaluation.

Providing reliable tonal balance, precise midrange clarity, and controlled low-frequency response, the Reference aims to be your portable studio monitor, allowing mixes to translate with confidence beyond any room.

HODWS architecture

Bass frequencies are handled by a custom-built system utilising twin 10mm dynamic drivers, arranged in a horizontally-opposed configuration. This Horizontally-Opposed Dual Woofer System (HODWS) allows the two woofers to share their mechanical load, resulting in:

Reduced stress in each diaphragm

Improved bass linearity and control

Improved power efficiency

Stronger and tighter bass response

Ultimately ensuring realistic bass response out of a flat tuning. Because “flat bass” shouldn’t mean “no bass”.

Sonion & Knowles Ba Drivers

Midrange and high frequencies are reproduced by a carefully-constructed array of twin Sonion midrange drivers and a single Knowles supertweeter. Every driver is hand-selected to achieve our stringent tuning goals, and subsequently designed with the most efficient crossover network possible.

CNC-Machined Aluminium Shell

All of the Reference’s drivers are housed in a full aluminium metal shell, precision-machined using a 5-axis CNC process. The contoured pseudo-custom geometry provides:

  • High structural rigidity to suppress enclosure resonance
  • Long-term durability capable of enduring professional use
  • Secure, comfortable fit optimized for extended sessions

Premium Modular Cable

A premium detachable cable is included, featuring an interchangeable termination system:

  • 3.5mm single-ended for universal compatibility
  • 4.4mm balanced for lower crosstalk and improved channel separation

Enjoy flexibility across portable and desktop sources, consumer and professional, without sacrificing signal quality.

Technical Details

Driver Configuration

  • 2× 10mm DD (HODWS) + 3BA

  • 2× DD subwoofers + 2× Sonion BAs + 1× Knowles supertweeter

Construction

  • 5-axis CNC machined Full Aluminum Shell

  • 6.0mm (lip)

  • Silver-plated Copper

Included Accessories

  • S/M/L “Standard bore” silicone, S/M/L “Shorter bore” silicone, XS/S/M/L “Widebore” silicone, M foam eartips

  • Leatherette zip case, SPC cable with 3.5mm SE and 4.4mm balanced interchangeable connectors

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