Westone UM3x Rc Review | 93 Data compared

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  • Avg. price in UK: ~£310
  • Avg. price in US: ~$400
  • Form factor: in-ear
  • Connectivity: wired
  • Battery life: N/A hours
  • Active noise cancellation (ANC): no

Westone UM3x Rc review. Compare 93 technical specifications and user reviews to see how it ranks among headphones and if it is worth buying.

4.4

Overall score

What it is: An overall evaluation of the headphones' quality, based on technical analyses and user reviews.

When it matters: When you need a quick reference to identify the best headphones on the market.

Score components:

80.0%

4.4

Technical Score

20.0%

?

User score

Poor
4.4

Technical Score

What it is: An assessment of the headphones' technical performance, covering key areas such as sound quality, noise cancelling, microphone performance, battery life, comfort, connectivity, features, and build quality.

When it matters: When you want to compare headphones based on technical performance and available features.

Score components:

52.0%

4.6

Sound

20.0%

2.7

Features

10.0%

7.8

Design

8.0%

6.2

Connectivity

6.0%

1.0

Battery

4.0%

3.1

Calls & Controls

Poor
?

User score

What it is: A rating that combines user reviews and the total number of reviews received by the headphones.

When it matters: When you want to understand how headphones perform in real listening and how reliable they are in terms of comfort, audio quality, battery life, and long-term use.

Score components:

70.0%

?

User reviews

30.0%

?

Popularity

  • 0.2
    Gaming

    Score components:

    35.0%

    0.0

    Audio latency

    25.0%

    0.0

    Low-latency game mode

    20.0%

    1.0

    Can be used as a headset

    12.0%

    0.0

    Noise-canceling microphone

    8.0%

    0.0

    Battery life

  • 1.6
    Travel

    Score components:

    28.0%

    1.0

    Active noise cancellation (ANC)

    24.0%

    0.0

    Battery life

    18.0%

    7.3

    Weight

    16.0%

    0.0

    Multipoint support

    14.0%

    0.0

    Ambient sound mode

  • 0.2
    Calls

    Score components:

    28.0%

    0.0

    Noise-canceling microphone

    24.0%

    1.0

    Can be used as a headset

    18.0%

    0.0

    Multipoint support

    16.0%

    0.0

    Battery life

    14.0%

    0.0

    Companion app

  • 3.2
    Workout

    Score components:

    28.0%

    7.3

    Weight

    24.0%

    1.0

    Water resistance

    20.0%

    4.0

    IP rating

    16.0%

    0.0

    Battery life

    12.0%

    1.0

    Can be used as a headset

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Best prices in UK

    N/A~ £310

Best rankings

?

Available: ranking among products currently available (including other versions of this product).
All: ranking among all products in the database.

Verdict

The Westone UM3X RC is a high-performance, universal-fit in-ear monitor designed primarily for on-stage professional use, featuring three balanced armature drivers with a passive three-way crossover system. Its technical specifications include a frequency response of 20Hz–18kHz, a high sensitivity of 124 dB SPL/mW, and a nominal impedance of 56 ohms. The 'RC' designation signifies the inclusion of a detachable, field-replaceable EPIC braided cable, enhancing durability and ease of maintenance. Key characteristics include an intimate soundstage with exceptional instrument separation and a sound signature noted for its warm mid-range, controlled bass, and non-fatiguing high frequencies. Main advantages of this model are its superb isolation of up to 25dB, lightweight ergonomic design for long-term comfort, and a smooth, forgiving audio quality suitable for long sessions. However, common criticisms involve its relatively narrow and 'claustrophobic' soundstage, a noticeable roll-off in upper treble sparkle, and its status as a discontinued product which may complicate sourcing replacements.

Technical Specifications of Westone UM3x Rc

Technical Score

What it is: An assessment of the headphones' technical performance, covering key areas such as sound quality, noise cancelling, microphone performance, battery life, comfort, connectivity, features, and build quality.

When it matters: When you want to compare headphones based on technical performance and available features.

Score components:

52.0%

?

Sound

20.0%

?

Features

10.0%

?

Design

8.0%

?

Connectivity

6.0%

?

Battery

4.0%

?

Calls & Controls

4.4
Westone UM3x Rc has a technical score of 4.41 points, which is lower than that of 77% of products in this category.
User score

What it is: A rating that combines user reviews and the total number of reviews received by the headphones.

When it matters: When you want to understand how headphones perform in real listening and how reliable they are in terms of comfort, audio quality, battery life, and long-term use.

Score components:

70.0%

0.0

User reviews

30.0%

1.0

Popularity

?
Popularity
What it is: An indicator based on the number of reviews received by the headphones.
When it matters: When you prefer headphones that have already been chosen and reviewed by many other users.
1.0
Westone UM3x Rc has a popularity of 1 points, which is lower than 72.7% of products in this category.
Ratio quality/price

What it is: An indicator that combines the headphones' overall rating with their cost.

When it matters: When you are looking for headphones that offer a strong balance of performance, features, and price.

Score components:

60.0%

4.4

Overall score

40.0%

8.9

Price

5.8
Westone UM3x Rc has a quality-to-price ratio of 5.8 points, which is lower than 88% of products in this category.
Active noise cancellation (ANC)
What it is: Reduces background noise using active technology
When it matters: When blocking office, travel, or aircraft noise is a priority.

Importance: HIGH

no
Westone UM3x Rc does not support active noise cancellation. 27.4% of headphones support active noise cancellation.
Driver type
What it is: Type of speaker driver technology used
When it matters: When the underlying sound character and driver technology matter to you.

Importance: MEDIUM

balanced armature
Driver size
What it is: Diameter of the speaker driver unit
When it matters: When you want extra hardware context behind how the headphones may handle bass weight, scale, or overall presentation.

Importance: MEDIUM

N/A
Number of drivers
What it is: Total number of speaker drivers per earcup
When it matters: When multi-driver designs are part of your buying criteria.

Importance: LOW

3
Westone UM3x Rc uses 3 drivers, more drivers than 98.6% of headphones and equal to 0.5% of headphones.
Lowest frequency
What it is: Lowest audio frequency the headphones can reproduce
When it matters: When deeper bass extension matters for your music or movie listening.

Importance: MEDIUM

Good value: <=10 Hz

20 Hz
Westone UM3x Rc reaches a lowest frequency of 20 Hz, higher lowest frequency than 50.6% of headphones and equal to 47.5% of headphones.
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Noise-canceling microphone
What it is: Built-in microphone reduces background noise during calls
When it matters: When you take calls in busy spaces and want your voice to stay clearer.

Importance: MEDIUM

N/A
Can be used as a headset
What it is: Shows whether the headphones can handle voice chat and calls in addition to normal audio playback.
When it matters: When one pair needs to cover music, calls, meetings, and gaming chat.

Importance: MEDIUM

no
Westone UM3x Rc is not headset-ready, while 15.3% is. 84.7% of headphones can be used as headsets.
Number of microphones
What it is: Total number of built-in microphones
When it matters: When call pickup quality and beamforming support matter to you.

Importance: LOW

Good value: >=2

0
Westone UM3x Rc has 0 microphones, fewer microphones than 74.1% of headphones and equal to 25.9% of headphones.
Boom microphone
What it is: Includes detachable boom microphone for voice clarity
When it matters: When you need stronger voice clarity for gaming, streaming, or work calls.

Importance: LOW

yes
Westone UM3x Rc includes a boom microphone. 84.5% of headphones have a boom microphone.
Microphone SNR
What it is: Signal-to-noise ratio of the microphone
When it matters: When call clarity matters and you want your voice picked up more cleanly instead of buried in background hiss.

Importance: LOW

Good value: >80 dB

N/A
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Connectivity
What it is: Available connection methods (wired, wireless, Bluetooth, etc.)
When it matters: When the headphones need to match how you listen across wired and wireless devices.

Importance: HIGH

wired
Westone UM3x Rc supports wired connectivity, equal to 52.6% of headphones.
Bluetooth version
What it is: Version of Bluetooth technology supported
When it matters: When wireless stability, efficiency, and feature support matter more than treating Bluetooth as a box-check spec.

Importance: MEDIUM

Good value: >=5.0

N/A
Maximum Bluetooth range
What it is: Maximum wireless operating distance from source device
When it matters: When you move around rooms and want fewer dropouts from your source device.

Importance: LOW

Good value: >=10 m

N/A
Audio latency
What it is: Delay between audio and video in wireless mode
When it matters: When you watch video or play games and need sound to stay in sync.

Importance: HIGH

Good value: <60 ms

N/A
Multipoint support
What it is: Supports simultaneous connections to multiple devices
When it matters: When you switch often between a phone and a laptop during the day.

Importance: MEDIUM

N/A
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Ambient sound mode
What it is: Allows external sounds to pass through for awareness
When it matters: When you need to stay aware of traffic, voices, or announcements.

Importance: MEDIUM

N/A
EQ support
What it is: Allows customization of sound profile via equalizer
When it matters: When the stock tuning is not enough and you want to shape bass, mids, or treble to match your taste.

Importance: MEDIUM

no
Westone UM3x Rc does not support EQ customization. 23.3% of headphones support EQ.
Companion app
What it is: Dedicated mobile app for customization and updates
When it matters: When software customization, updates, and extra controls matter.

Importance: MEDIUM

N/A
Adjustable ANC levels
What it is: Allows adjustment of noise cancellation intensity levels
When it matters: When you move between quiet rooms, offices, streets, and public transport and do not want one ANC setting for every situation.

Importance: LOW

Good value: >=4

N/A
Voice assistant support
What it is: Compatible with voice assistants like Siri, Alexa, or Google Assistant
When it matters: When hands-free control is part of your daily routine.

Importance: LOW

no
Westone UM3x Rc does not support voice assistants. 60.9% of headphones support voice assistants.
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Battery life
What it is: Playback time on a single charge
When it matters: When you commute, travel, or work long shifts and do not want charging breaks to interrupt listening.

Importance: HIGH

Good value: >45 hours

N/A
Battery life with ANC
What it is: Playback time with active noise cancellation enabled
When it matters: When you plan to keep noise cancellation on for most of the day.

Importance: HIGH

Good value: >40 hours

N/A
Charging time
What it is: Time required for a full battery charge
When it matters: When you often need the headphones ready again after short breaks.

Importance: MEDIUM

Good value: <=2 hours

N/A
Quick charge
What it is: Provides quick playback time with short charging period
When it matters: When a short top-up needs to deliver useful playback before you leave.

Importance: MEDIUM

N/A
Battery capacity
What it is: Total energy storage of the internal battery
When it matters: When you are estimating how much battery headroom the design may have before relying only on the official runtime claim.

Importance: MEDIUM

Good value: >=720 mAh

N/A
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Brand name
What it is: The manufacturer or brand of the product.
When it matters: When you prefer a specific ecosystem, support network, or design philosophy.

Importance: MEDIUM

Westone
Form factor
What it is: Overall design type of the headphones (over-ear, on-ear, in-ear, etc.)
When it matters: When comfort, portability, and isolation depend on the overall headphone style.

Importance: HIGH

in-ear
Weight
What it is: Total weight of the headphones
When it matters: When long listening sessions make wearing comfort more important.

Importance: MEDIUM

Good value: <150 g

130 g
Westone UM3x Rc weighs 130 g, lighter than 74.1% of headphones and equal to 0.7% of headphones.
Acoustic design
What it is: Type of acoustic design (open-back, closed-back, semi-open)
When it matters: When you need the right balance of isolation, leakage, and soundstage.

Importance: HIGH

closed-back
Clamp force
What it is: Amount of clamping pressure applied to the head
When it matters: When comfort and fit security matter during long sessions.

Importance: MEDIUM

N/A
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Westone UM3x Rc vs the average headphone

  • 22 dB/mW higher sensitivity
    Westone UM3x Rc has a higher sensitivity than the average headphone (124 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.
    What it is: Sound pressure output level per unit of input power
    When it matters: When you plan to use weaker sources like phones, handhelds, or entry-level dongles and still want enough volume.

    Importance: MEDIUM

    Good value: >=106 dB/mW

    Westone UM3x Rc has a higher sensitivity than the average headphone (124 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.124 dB/mW vs 102 dB/mW
  • Direct 3.5 mm plug
    Westone UM3x Rc includes a direct 3.5 mm plug, the average headphone does not. 38.8% of headphones have a 3.5 mm male connector.
    What it is: Shows whether the headphones end in a built-in 3.5 mm male plug instead of relying on a separate detachable cable.
    When it matters: When direct wired compatibility with older devices or adapters matters.

    Importance: MEDIUM

    Westone UM3x Rc includes a direct 3.5 mm plug, the average headphone does not. 38.8% of headphones have a 3.5 mm male connector.
  • 40.4% lower weight
    Westone UM3x Rc is lighter than the average headphone (130 g vs 218 g). The average pair of headphones weighs 218 g.
    What it is: Total weight of the headphones
    When it matters: When long listening sessions make wearing comfort more important.

    Importance: MEDIUM

    Good value: <150 g

    Westone UM3x Rc is lighter than the average headphone (130 g vs 218 g). The average pair of headphones weighs 218 g.130 g vs 218 g
  • In-line controls
    Westone UM3x Rc includes in-line controls, the average headphone does not. 36.4% of headphones support in-line controls.
    What it is: Controls available on in-line remote of wired cable
    When it matters: When your wired setup depends on cable-mounted buttons or call controls.

    Importance: LOW

    Westone UM3x Rc includes in-line controls, the average headphone does not. 36.4% of headphones support in-line controls.
  • Boom microphone included
    Westone UM3x Rc includes a boom microphone, the average headphone does not. 15.6% of headphones have a boom microphone.
    What it is: Includes detachable boom microphone for voice clarity
    When it matters: When you need stronger voice clarity for gaming, streaming, or work calls.

    Importance: LOW

    Westone UM3x Rc includes a boom microphone, the average headphone does not. 15.6% of headphones have a boom microphone.
  • 21 dB SPL higher sound pressure level
    Westone UM3x Rc has a higher sound pressure level than the average headphone (124 dB SPL vs 103 dB SPL). The average headphones reach a sound pressure level of 103 dB SPL.
    What it is: Output loudness level of the headphones, usually measured in dB. It helps compare how loud a model can play under similar conditions.
    When it matters: When you need a rough idea of how loud the headphones can get before you pair them with a weaker source.

    Importance: LOW

    Good value: >=108 dB SPL

    Westone UM3x Rc has a higher sound pressure level than the average headphone (124 dB SPL vs 103 dB SPL). The average headphones reach a sound pressure level of 103 dB SPL.124 dB SPL vs 103 dB SPL
  • 14 dB higher max SPL
    Westone UM3x Rc has a higher max SPL than the average headphone (124 dB vs 110 dB). The average headphones reach a max SPL of 110 dB.
    What it is: Maximum safe sound pressure level
    When it matters: When high-volume headroom is part of your use case.

    Importance: LOW

    Good value: >=116 dB

    Westone UM3x Rc has a higher max SPL than the average headphone (124 dB vs 110 dB). The average headphones reach a max SPL of 110 dB.124 dB vs 110 dB
  • 40.4% lower weight
    Westone UM3x Rc is lighter than the average headphone (130 g vs 218 g). The average pair of headphones weighs 218 g.
  • 22 dB/mW higher sensitivity
    Westone UM3x Rc has a higher sensitivity than the average headphone (124 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.
  • 21 dB SPL higher sound pressure level
    Westone UM3x Rc has a higher sound pressure level than the average headphone (124 dB SPL vs 103 dB SPL). The average headphones reach a sound pressure level of 103 dB SPL.
  • 14 dB higher max SPL
    Westone UM3x Rc has a higher max SPL than the average headphone (124 dB vs 110 dB). The average headphones reach a max SPL of 110 dB.
  • Direct 3.5 mm plug
    Westone UM3x Rc includes a direct 3.5 mm plug, the average headphone does not. 38.8% of headphones have a 3.5 mm male connector.
  • In-line controls
    Westone UM3x Rc includes in-line controls, the average headphone does not. 36.4% of headphones support in-line controls.
  • Boom microphone included
    Westone UM3x Rc includes a boom microphone, the average headphone does not. 15.6% of headphones have a boom microphone.
  • 2 Hz weaker bass extension
    Westone UM3x Rc has a higher lowest frequency than the average headphone (20 Hz vs 18 Hz). The average headphones reach a lowest frequency of 18 Hz.
  • 2 fewer drivers
    Westone UM3x Rc has fewer drivers than the average headphone (3 vs 1). The average headphones use 1 drivers.
  • Not headset-ready
    Westone UM3x Rc is not headset-ready, while the average headphone is. 84.7% of headphones can be used as headsets.
  • 1 fewer microphones
    Westone UM3x Rc has fewer microphones than the average headphone (0 vs 1). The average headphones have 1 microphones.
  • No voice assistant support
    Westone UM3x Rc does not support voice assistants, the average headphone does. 60.8% of headphones support voice assistants.
  • 7 years older release date
    Westone UM3x Rc was released earlier than the average headphone (2,010 vs 2,017). The average headphones were released in 2,017.
    May 2010
  • No voice assistant support
    Westone UM3x Rc does not support voice assistants, the average headphone does. 60.8% of headphones support voice assistants.
    What it is: Compatible with voice assistants like Siri, Alexa, or Google Assistant
    When it matters: When hands-free control is part of your daily routine.

    Importance: LOW

    Westone UM3x Rc does not support voice assistants, the average headphone does. 60.8% of headphones support voice assistants.
  • Not headset-ready
    Westone UM3x Rc is not headset-ready, while the average headphone is. 84.7% of headphones can be used as headsets.
    What it is: Shows whether the headphones can handle voice chat and calls in addition to normal audio playback.
    When it matters: When one pair needs to cover music, calls, meetings, and gaming chat.

    Importance: MEDIUM

    Westone UM3x Rc is not headset-ready, while the average headphone is. 84.7% of headphones can be used as headsets.
  • 2 Hz weaker bass extension
    Westone UM3x Rc has a higher lowest frequency than the average headphone (20 Hz vs 18 Hz). The average headphones reach a lowest frequency of 18 Hz.
    What it is: Lowest audio frequency the headphones can reproduce
    When it matters: When deeper bass extension matters for your music or movie listening.

    Importance: MEDIUM

    Good value: <=10 Hz

    Westone UM3x Rc has a higher lowest frequency than the average headphone (20 Hz vs 18 Hz). The average headphones reach a lowest frequency of 18 Hz.20 Hz vs 18 Hz
  • 1 fewer microphones
    Westone UM3x Rc has fewer microphones than the average headphone (0 vs 1). The average headphones have 1 microphones.
    What it is: Total number of built-in microphones
    When it matters: When call pickup quality and beamforming support matter to you.

    Importance: LOW

    Good value: >=2

    Westone UM3x Rc has fewer microphones than the average headphone (0 vs 1). The average headphones have 1 microphones.0 vs 1
  • 3.44x more expensive
    Westone UM3x Rc is more expensive than the average headphone (£310 vs £90).
    Westone UM3x Rc is more expensive than the average headphone (£310 vs £90).£310 vs £90
  • 4.65x less popular
    Westone UM3x Rc is less popular than the average headphone (1.00 vs 4.646).
    What it is: An indicator based on the number of reviews received by the headphones.
    When it matters: When you prefer headphones that have already been chosen and reviewed by many other users.
    Westone UM3x Rc is less popular than the average headphone (1.00 vs 4.646).1 vs 4.65
  • 17.1% worse value for money
    Westone UM3x Rc has worse value for money than the average headphone (5.75 vs 6.736).
    What it is: An indicator that combines the headphones' overall rating with their cost.
    When it matters: When you are looking for headphones that offer a strong balance of performance, features, and price.
    Westone UM3x Rc has worse value for money than the average headphone (5.75 vs 6.736).5.75 vs 6.74
  • 7 years older release date
    Westone UM3x Rc was released earlier than the average headphone (2,010 vs 2,017). The average headphones were released in 2,017.
    May 2010
    What it is: Official release or launch date of the model
    When it matters: When you want a newer model for fresher features, longer support life, or simply to avoid buying into an older generation.

    Importance: LOW

    Good value: >=2020

    Westone UM3x Rc was released earlier than the average headphone (2,010 vs 2,017). The average headphones were released in 2,017.2010 vs 2017

Graphic comparison of Westone UM3x Rc and

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Third-party reviews

What customers like about Westone UM3x Rc?

  • Superb ergonomics and a comfortable, secure over-ear fit that is suitable for sleeping
  • Excellent passive noise isolation, often described as among the best in its class
  • Spectacular instrument separation and precise imaging, making it easy to locate sounds within a stage
  • Non-fatiguing, smooth sound signature with lush, intimate vocals
  • High-strength detachable cable made from durable materials like those used in ballistic body armor
  • Rich, well-controlled bass that is punchy and detailed

What customers dislike about Westone UM3x Rc?

  • Small and intimate soundstage that can feel "claustrophobic" or narrow compared to other top-tier IEMs
  • Recessed or rolled-off upper mids and treble, leading to a lack of sparkle or energy for some genres
  • High sensitivity can cause audible hissing when used with full-size amps or mismatched sources
  • Discontinued product status makes them difficult to find and replacement parts harder to source
  • Peculiar sound presentation that may feel "bland" or less realistic for rock and electronica
  • Aesthetic design is considered unappealing by some due to its half-clear, half-black plastic shell

Expert reviews

H
head-fi.org
05/05/2010

The Westone UM3X triple-driver in-ear monitors are lauded for providing a detailed, analog, and vinyl-like sound, featuring exceptional instrument separation, layering, and a musical, textured bass response. These earphones are highly regarded for their comfortable ergonomics and a snug fit that is less sensitive to tip selection than comparable models. Conversely, the UM3X is noted...Read more

H
head-fi.org
27/04/2012

The Head-Fi review highlights the Westone UM3X as a technically precise in-ear monitor, boasting exceptional instrument separation, detailed imaging, and strong, controlled sub-bass performance. These IEMs are highly recommended for critical listening, particularly in complex genres, due to their ability to isolate individual sounds within a track. However, a major drawback is the...Read more

T
theheadphonelist.com
05/06/2013

about purchasing this style of earphone, let me know: Do you prefer a wide, open soundstage or an intimate, close-up performance?Are you looking to use these for professional stage monitoring or casual music listening?What genres of music do you listen to the most? I can recommend modern alternatives, like the updated Westone UM Pro 30 or other high-performing universal monitors,...Read more

H
headfonics.com
03/04/2011

The Headfonics review highlights the Westone UM3X as a top-tier, professional-grade in-ear monitor designed for stage musicians and audiophiles seeking a relaxed, polite sound signature. It is praised for its exceptional instrument separation, comfortable ergonomics, and durable build, offering a smooth, non-fatiguing, and accurate listening experience. However, the UM3X is noted...Read more

H
hifitest.de
06/11/2018

Westone UM Pro 30 and AM Pro 30 Review Summary The Westone UM Pro 30 and AM Pro 30 are professional-grade triple balanced-armature driver in-ear monitors evaluated for their performance, design, and safe real-world utility in everyday environments. Priced around €420 and €470 respectively, both models earn a "Spitzenklasse" (top-tier) rating for delivering a highly precise,...Read more

J
journaldugeek.com
06/11/2009

The Journal du Geek review provides a comprehensive side-by-side comparison of the EarSonics SM2 DLX and the Westone UM3X in-ear monitors, evaluated using a Cowon S9 player with uncompressed FLAC files. The EarSonics SM2 DLX utilizes a 2-way passive crossover system with 2 drivers, featuring a 16-ohm impedance and 119 dB/mW sensitivity. On the track, it is highly praised for its...Read more

H
head-fi.org
27/04/2026

The Westone UM3X, reviewed on Head-Fi, is a three-driver balanced armature monitor noted for its exceptional comfort, low-profile design, and American-made construction. It provides a smooth, non-fatiguing sound signature that is highly responsive to equalization adjustments, making it an effective tool for musicians. However, the review notes that the high sensitivity of 124dB/mW...Read more

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