Harman Kardon Cl Review | 93 Data compared

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  • Avg. price in UK: ~£150
  • Avg. price in US: ~$100
  • Form factor: on-ear
  • Connectivity: wired
  • Battery life: N/A hours
  • Active noise cancellation (ANC): no

Harman Kardon Cl review. Compare 93 technical specifications and user reviews to see how it ranks among headphones and if it is worth buying.

5.9

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%

5.2

Technical Score

20.0%

8.6

User score

Good
5.2

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%

5.1

Sound

20.0%

4.1

Features

10.0%

7.1

Design

8.0%

2.9

Connectivity

6.0%

8.3

Battery

4.0%

7.6

Calls & Controls

Good
8.6

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%

8.0

User reviews

30.0%

10

Popularity

User score:
United Kingdom
amazon
4.0
(752)
United States
Amazon_logo.png
4.0
(752)

(Reviews last updated: June 2026)

Excellent
  • 3.2
    Gaming

    Score components:

    35.0%

    0.0

    Audio latency

    25.0%

    0.0

    Low-latency game mode

    20.0%

    10

    Can be used as a headset

    12.0%

    10

    Noise-canceling microphone

    8.0%

    0.0

    Battery life

  • 1.3
    Travel

    Score components:

    28.0%

    1.0

    Active noise cancellation (ANC)

    24.0%

    0.0

    Battery life

    18.0%

    5.7

    Weight

    16.0%

    0.0

    Multipoint support

    14.0%

    0.0

    Ambient sound mode

  • 5.2
    Calls

    Score components:

    28.0%

    10

    Noise-canceling microphone

    24.0%

    10

    Can be used as a headset

    18.0%

    0.0

    Multipoint support

    16.0%

    0.0

    Battery life

    14.0%

    0.0

    Companion app

  • 3.8
    Workout

    Score components:

    28.0%

    5.7

    Weight

    24.0%

    1.0

    Water resistance

    20.0%

    4.0

    IP rating

    16.0%

    0.0

    Battery life

    12.0%

    10

    Can be used as a headset

  • harman-kardon-cl
harman-kardon-cl

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Best rankings

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

Verdict

The Harman Kardon CL (Classic) is an on-ear, closed-back headphone featuring 40mm drivers with a unique baffle design for extended bass, delivering a frequency response of 16Hz – 20kHz and a sensitivity of 119 dB/mW at 32 Ohms. Its industrial aesthetic is defined by a sandblasted steel frame, 2D swivel hinges, and magnetically attached memory foam ear pads, all weighing approximately 195g for lightweight portability. Key advantages include its user-interchangeable metal headbands (available in small and large sizes), an Apple-certified detachable cable with an integrated three-button remote, and a warm, balanced sound profile with exceptional midrange clarity. Notable drawbacks include the use of a non-standard 2.5mm connection on the ear cup side, potential discomfort for users with glasses or during very long listening sessions, and a lack of active noise cancellation.

Technical Specifications of Harman Kardon Cl

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%

5.1

Sound

20.0%

4.1

Features

10.0%

7.1

Design

8.0%

2.9

Connectivity

6.0%

8.3

Battery

4.0%

7.6

Calls & Controls

5.2
Harman Kardon Cl has a technical score of 5.21 points, which is higher than that of 60.2% 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%

8.0

User reviews

30.0%

10

Popularity

User score:
United Kingdom
amazon
4.0
(752)
United States
Amazon_logo.png
4.0
(752)

(Reviews last updated: June 2026)

8.6
Harman Kardon Cl has a user score of 8.6 points, which is higher than that of 73.7% of products in this category.
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.
10
Harman Kardon Cl has a popularity of 10 points, which is higher than 71.9% 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%

5.9

Overall score

40.0%

9.7

Price

7.0
Harman Kardon Cl has a quality-to-price ratio of 7 points, which is higher than 61.2% 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
Harman Kardon Cl 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

dynamic
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

40 mm
Harman Kardon Cl uses a driver size of 40 mm, larger driver size than 28.2% of headphones and equal to 53.6% of headphones.
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

1
Harman Kardon Cl uses 1 drivers, fewer drivers than 4% of headphones and equal to 96% 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

16 Hz
Harman Kardon Cl reaches a lowest frequency of 16 Hz, lower lowest frequency than 54.3% of headphones and equal to 4.1% of headphones.
Show more
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

yes
Harman Kardon Cl supports a noise-canceling microphone. 54.5% of headphones support noise-canceling microphones.
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

yes
Harman Kardon Cl is headset-ready, 84.7% is not. 15.3% 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

1
Harman Kardon Cl has 1 microphones, more microphones than 25.9% of headphones and equal to 52.2% 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
Harman Kardon Cl 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

?
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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
Harman Kardon Cl supports wired connectivity, less flexible connectivity than 47.4% of headphones and 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
Show more
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
Harman Kardon Cl 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

yes
Harman Kardon Cl supports voice assistants. 39.2% 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

Harman Kardon
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

on-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

195 g
Harman Kardon Cl weighs 195 g, lighter than 57.5% of headphones and equal to 0.8% 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

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Harman Kardon Cl vs the average headphone

  • 17 dB/mW higher sensitivity
    Harman Kardon Cl has a higher sensitivity than the average headphone (119 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

    Harman Kardon Cl has a higher sensitivity than the average headphone (119 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.119 dB/mW vs 102 dB/mW
  • Clear call microphone
    Harman Kardon Cl offers a clear call microphone, while the average headphone does not. 45.6% of headphones support noise-canceling microphones.
    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

    Harman Kardon Cl offers a clear call microphone, while the average headphone does not. 45.6% of headphones support noise-canceling microphones.
  • In-line controls
    Harman Kardon Cl 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

    Harman Kardon Cl includes in-line controls, the average headphone does not. 36.4% of headphones support in-line controls.
  • Sidetone support
    Harman Kardon Cl supports sidetone, the average headphone does not. 29.7% of headphones support sidetone.
    What it is: Lets users hear their own voice during calls
    When it matters: When long calls matter and you do not want to sound unnaturally loud in your own ears while speaking.

    Importance: LOW

    Harman Kardon Cl supports sidetone, the average headphone does not. 29.7% of headphones support sidetone.
  • Quick mic mute
    Harman Kardon Cl includes a quick mic mute, the average headphone does not. 33.5% of headphones support a mute function.
    What it is: Ability to mute microphone during calls
    When it matters: When you need to silence the mic quickly during meetings or multiplayer games.

    Importance: LOW

    Harman Kardon Cl includes a quick mic mute, the average headphone does not. 33.5% of headphones support a mute function.
  • Boom microphone included
    Harman Kardon Cl 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

    Harman Kardon Cl includes a boom microphone, the average headphone does not. 15.6% of headphones have a boom microphone.
  • 16 dB SPL higher sound pressure level
    Harman Kardon Cl has a higher sound pressure level than the average headphone (119 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

    Harman Kardon Cl has a higher sound pressure level than the average headphone (119 dB SPL vs 103 dB SPL). The average headphones reach a sound pressure level of 103 dB SPL.119 dB SPL vs 103 dB SPL
  • 10.6% lower weight
    Harman Kardon Cl is lighter than the average headphone (195 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

    Harman Kardon Cl is lighter than the average headphone (195 g vs 218 g). The average pair of headphones weighs 218 g.195 g vs 218 g
  • 10.6% lower weight
    Harman Kardon Cl is lighter than the average headphone (195 g vs 218 g). The average pair of headphones weighs 218 g.
  • 17 dB/mW higher sensitivity
    Harman Kardon Cl has a higher sensitivity than the average headphone (119 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.
  • 16 dB SPL higher sound pressure level
    Harman Kardon Cl has a higher sound pressure level than the average headphone (119 dB SPL vs 103 dB SPL). The average headphones reach a sound pressure level of 103 dB SPL.
  • Clear call microphone
    Harman Kardon Cl offers a clear call microphone, while the average headphone does not. 45.6% of headphones support noise-canceling microphones.
  • In-line controls
    Harman Kardon Cl includes in-line controls, the average headphone does not. 36.4% of headphones support in-line controls.
  • Sidetone support
    Harman Kardon Cl supports sidetone, the average headphone does not. 29.7% of headphones support sidetone.
  • Quick mic mute
    Harman Kardon Cl includes a quick mic mute, the average headphone does not. 33.5% of headphones support a mute function.
  • Boom microphone included
    Harman Kardon Cl includes a boom microphone, the average headphone does not. 15.6% of headphones have a boom microphone.
  • 5 years older release date
    Harman Kardon Cl was released earlier than the average headphone (2012 vs 2017). The average headphones were released in 2017.
    June 2012
  • 5 years older release date
    Harman Kardon Cl was released earlier than the average headphone (2012 vs 2017). The average headphones were released in 2017.
    June 2012
    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

    Harman Kardon Cl was released earlier than the average headphone (2012 vs 2017). The average headphones were released in 2017.2012 vs 2017
  • 66.7% more expensive
    Harman Kardon Cl is more expensive than the average headphone (£150 vs £90).
    Harman Kardon Cl is more expensive than the average headphone (£150 vs £90).£150 vs £90

Graphic comparison of Harman Kardon Cl and

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Third-party reviews

United Kingdom
United States

(Reviews last updated: June 2026)

What customers like about Harman Kardon Cl?

  • Premium industrial design with sandblasted steel and leather accents
  • Rich, punchy bass performance without being overwhelming
  • Clear and articulated midrange, making it excellent for vocals and jazz
  • Lightweight build with high-quality memory foam ear pads for comfort
  • User-replaceable parts, including magnetically attached ear pads and a detachable cable
  • Includes two exchangeable headbands (small and large) to ensure a better fit

What customers dislike about Harman Kardon Cl?

  • Rolled-off treble which can lack 'sparkle' and high-frequency detail for some genres
  • On-ear design may become uncomfortable during long listening sessions for users with wider heads
  • Uses a less common 2.5mm to 3.5mm cable, making generic replacements harder to find
  • Older faux leather material on the headband and pads is prone to peeling over time
  • Not a traditionally adjustable headband; users must physically swap the metal band for a different size
  • Lacks the extreme sonic detail and 'air' found in more expensive audiophile headphones

Expert reviews

G
geardiary.com
27/03/2014
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head-fi.org
18/11/2013
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H
headfonics.com
01/07/2013
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P
pocket-lint.com
31/12/2012
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F
firstpost.com
17/10/2012
Summary of the review
T
t3.com
14/08/2012
Summary of the review
G
gizmodo.com
30/07/2012
Summary of the review
U
uk.pcmag.com
19/07/2012
Summary of the review
W
whathifi.com
06/07/2012
Summary of the review
T
theheadphonelist.com
28/10/2014
Summary of the review
I
iphoneincanada.ca
17/09/2012
Summary of the review
C
cnet.com
15/08/2012
Summary of the review
S
stereophile.com
23/06/2012
Summary of the review
D
digitaltrends.com
23/08/2019
Summary of the review
H
hifitest.de
25. Februar 2013
Summary of the review
S
sueddeutsche.de
25/11/2012
Summary of the review
C
connect.de
18. Oktober 2012
Summary of the review
K
kopfhoerer.de
Ohne Datum
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N
netzwelt.de
10/04/2016
Summary of the review
M
macwelt.de
12. Dezember 2012
Summary of the review
L
lesnumeriques.com
09/08/2012
Summary of the review
O
on-mag.fr
24/10/2013
Summary of the review
L
lesnumeriques.com
09/08/2012
Summary of the review
H
head-fi.org
18/11/2013
Summary of the review
A
alpha-audio.net
06/07/2012
Summary of the review
I
id.nl
03/10/2012
Summary of the review

Video reviews

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