About the CrinEar Reference
From the product page on linsoul.com.
Purpose-Driven Design for Absolute Neutrality
The CrinEar Reference is engineered with a singular goal: achieving true reference-grade neutrality. Designed around a population-averaged diffuse field response tilted at -1dB per octave, it incorporates a subtle bass lift to maintain perceptual balance—compensating for real-world listening conditions and the physicality of low frequencies. Fully verified under ITU-T Type 4.3 conditions, the Reference represents a milestone in acoustic accuracy—delivering what can be considered one of the flattest in-ear monitor tunings ever achieved.
Through precise acoustic modeling and measurement validation, the CrinEar Reference achieves an exceptionally flat frequency response. This ensures that music is reproduced exactly as intended—without coloration, exaggeration, or masking of details. Whether for critical listening, mixing, or mastering, the Reference offers a transparent window into your audio.