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CrinEar Reference vs Westone UM Pro 20: which should you buy?

Specs, scores and condensed review verdicts for the CrinEar Reference vs Westone UM Pro 20, side by side. Where a product has no HearWiki score yet, not enough reviews have been aggregated to rate it.

Score breakdown

Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.

CrinEar Reference leads on 3 of 4 measures.

  • CrinEar Reference
  • Westone UM Pro 20
HearWiki score
86
-
Sound
9.1
-
Value
8.9
-
Price (USD)
$350
$300

Generation & platform

The scores rank quality. This is the other question: is the newer one actually newer technology, or the same platform in a new shell?

Same generation

The CrinEar Reference is 8 years newer, but it is the same generation of hardware: nothing in the radio, the codecs or the noise cancelling separates them. Nothing separates them on convenience features either, so the choice comes down to tuning and price. For 8 years between them, that is a thin return - treat this as a restyle rather than a new platform.

  • Reference20268 yr newer
  • UM Pro 202018

Specifications

ReferenceUM Pro 20
Type
Wired IEMs
Wired IEMs
Price (USD)
$350
$300
HearWiki score
86
Not scored
Released
2026
2018
Availability
Sold new
Discontinued
Driver
2DD + 3BA hybrid
2× balanced armature
Driver type
hybrid
balanced-armature
Driver configuration
2DD + 3BA
-
Driver size
10 mm
-
Drivers per side
5
2
Frequency response
-
20 Hz - 18 kHz
Impedance
16 Ω
27 Ω
Sensitivity
104 dB/mW
119 dB/mW
Active noise cancelling
-
No
ANC type
-
none
Transparency mode
-
No
Companion app
-
No
Custom EQ
-
No
Wear detection
-
No
Controls
-
none
Weight
-
12.7 g
Detachable cable
Yes
Yes
USB-C
-
No
Connector
4.4 mm balanced
-

What reviewers said

CrinEar Reference

The CrinEar Reference is a wired in-ear monitor with a hybrid 2DD + 3BA driver setup, offering a balanced and detailed sound signature. It features a detachable 4.4mm balanced cable and relies on a tight seal for passive isolation, making it a strong choice for critical listening at its price point.

  • Pro:Hybrid driver configuration delivers rich, layered sound
  • Pro:Detachable 4.4mm balanced cable for flexible connectivity
  • Pro:Good passive isolation from proper eartip seal
  • Con:No active noise cancellation, so external noise isn't fully blocked
  • Con:Requires a balanced source to fully utilize the 4.4mm connector
  • Con:Fit may be finicky for some users to achieve optimal seal

Westone UM Pro 20

The Westone UM Pro 20 is a wired in-ear monitor built for professional and personal listening, using dual balanced armature drivers to deliver precise, detailed sound. Its lightweight, detachable-cable design suits stage use or critical listening, though it lacks wireless or control features. With high sensitivity and low impedance, it pairs easily with most devices, but the limited frequency range may not satisfy bass-heavy listeners.

  • Pro:Accurate dual balanced armature sound
  • Pro:Very lightweight and comfortable for long sessions
  • Pro:Detachable cable for easy replacement or upgrade
  • Con:No noise cancellation or transparency mode
  • Con:Limited frequency response, especially in treble
  • Con:No inline controls or app support

Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.

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New comparisonCrinEar ReferenceWestone UM Pro 20