OVERALL
ALTERNATIVES
SPECS
VS AVERAGE
REVIEWS
Scored using Portable Speakers Methodology v1.0
Portable Speakers Methodology v1.0
Mathematical & Unbiased Scoring
Products in this category are scored under Frontum Portable Speakers Methodology v1.0: technical specifications plus authentic consumer ratings, with 0% commercial bias.
Explore Portable Speakers Methodology v1.0

Harman Kardon Onyx Studio 6 Review | 130 Data compared

Avg. price:~£180Audio output power:50.00 WBattery life:8 hoursIP rating:IPX7Bluetooth version:4.2Weight:2940 g

Harman Kardon Onyx Studio 6 Review: Compare 130 technical specifications and user reviews to see how this product ranks in the Portable Speakers category and whether it is worth buying.

Harman Kardon Onyx Studio 6
6.9/10

Overall score

Score
6.9/ 10
✕
What it is
An overall evaluation of products in the Portable Speakers category, based on technical analysis and user reviews.
When it matters
When you need a quick reference for identifying the best products in the Portable Speakers category.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 63% of models
Score components

80%

6.3

Technical score

20%

9.5

User score

â–²Better than 63% of portable speakers
7.7

Value for money

Value for money
7.7/ 10
✕
What it is
An indicator that combines the overall score of products in the Portable Speakers category with their prices.
When it matters
When you are comparing products in the Portable Speakers category and want a good balance between quality and price.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 59% of models
Score components

70%

6.9

Overall score

30%

9.6

Price

â–²Better than 59%
6.3

Technical score

Technical score
6.3/ 10
✕
What it is
An assessment of technical performance for products in the Portable Speakers category across these key areas: Audio, Connectivity, Battery, Durability, Controls, Design, Smart features.
When it matters
When you want to compare products in the Portable Speakers category by technical performance, specifications, and available features.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 68% of models
Score components

32%

7.0

Audio

20%

5.3

Battery

18%

7.7

Durability

16%

5.8

Connectivity

8%

4.5

Controls

3%

6.1

Design

3%

4.1

Smart features

â–¼Worse than 68%
9.5

User score

User score
9.5/ 10
✕
What it is
A rating that combines user reviews with the total review volume for products in the Portable Speakers category.
When it matters
When you want to know how products in the Portable Speakers category perform in everyday use and how reliable owners find them over time.
Score distribution
â–¼
<55-66-77-88-99-10
★ Better than 96% of models
Score components

70%

9.4

User ratings

30%

9.6

Number of reviews

Based on ratings from across the web.
★Better than 96%
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Where to buy
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Best rankings
Available: ranking among products currently available (including other versions of this product).All: ranking among all products in the database.
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Technical Specifications of portable speaker Harman Kardon Onyx Studio 6

Technical score
Technical score
6.3/ 10
✕
What it is
An assessment of technical performance for products in the Portable Speakers category across these key areas: Audio, Connectivity, Battery, Durability, Controls, Design, Smart features.
When it matters
When you want to compare products in the Portable Speakers category by technical performance, specifications, and available features.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 68% of models
Score components:

32%

7.0

Audio

20%

5.3

Battery

18%

7.7

Durability

16%

5.8

Connectivity

8%

4.5

Controls

3%

6.1

Design

3%

4.1

Smart features

6.3
User score
User score
9.5/ 10
✕
What it is
A rating that combines user reviews with the total review volume for products in the Portable Speakers category.
When it matters
When you want to know how products in the Portable Speakers category perform in everyday use and how reliable owners find them over time.
Score distribution
â–¼
<55-66-77-88-99-10
★ Better than 96% of models
Score components

70%

9.4

User ratings

30%

9.6

Number of reviews

Based on ratings from across the web.
9.5
Popularity
Popularity
9.6/ 10
✕
What it is
An indicator based on the number of reviews received by products in the Portable Speakers category.
When it matters
When you prefer products in the Portable Speakers category that have been chosen and reviewed by many other buyers.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 89% of models
Popularity:
Harman Kardon Onyx Studio 6 has a popularity score of 9.6 points, which is higher than 89.4% of products in this category.
9.6
Value for money
Value for money
7.7/ 10
✕
What it is
An indicator that combines the overall score of products in the Portable Speakers category with their prices.
When it matters
When you are comparing products in the Portable Speakers category and want a good balance between quality and price.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 59% of models
Score components:

70%

6.9

Overall score

30%

9.6

Price

7.7
Audio output power
50 W
Market range: <4 W – >100 W
This portable speaker has an audio output power of 50 W which is higher than that of 75.8% of portable speakers and equal to that of 3.3% of portable speakers.
Driver unit size
?
Number of drivers
2
Market range: <0 – >5
This portable speaker has 2 drivers, which is more than 24.5% of portable speakers and equal to the number in 45.5% of portable speakers.
Frequency response tolerance
?
Lowest frequency
50 Hz
Market range: <20 Hz – >120 Hz
This portable speaker has a lowest frequency of 50 Hz which is lower than that of 59.9% of portable speakers and equal to that of 9.1% of portable speakers.
Show more
Bluetooth connectivity
yes
This portable speaker supports Bluetooth audio. 5.4% of portable speakers offer this feature.
Bluetooth version
4.2
Market range: <3 – >5.3
This portable speaker supports Bluetooth version 4.2 which is older than that of 53.8% of portable speakers and equal to that of 17.8% of portable speakers.
Maximum Bluetooth range
10 m
Market range: <10 m – >30 m
This portable speaker has a maximum Bluetooth range of 10 m which is longer than that of 4.3% of portable speakers and equal to that of 70.2% of portable speakers.
Bluetooth profiles supported
A2DP; AVRCP
Bluetooth LE Audio
no
This portable speaker does not support Bluetooth LE Audio. 2.5% of portable speakers offer this feature.
Show more
Battery life
8 hours
Market range: <6 hours – >24 hours
This portable speaker has a battery life of 8 hours which is shorter than that of 68.9% of portable speakers and equal to that of 11.6% of portable speakers.
Battery capacity
3,283 mAh
Market range: <900 mAh – >6.6k mAh
This portable speaker has a battery capacity of 3,283 mAh which is larger than that of 64.7% of portable speakers and equal to that of 0.1% of portable speakers.
Charging time
5 hours
Market range: <2 hours – >5 hours
This portable speaker has a charging time of 5 hours which is longer than that of 87% of portable speakers and equal to that of 7.7% of portable speakers.
Maximum charging input power
?
Built-in rechargeable battery
yes
This portable speaker has a built-in rechargeable battery. 18.7% of portable speakers offer this feature.
Show more
IP rating
IPX7
This portable speaker has an IP rating of IPX7 which provides better ingress protection than 47.6% of portable speakers and the same ingress protection as 25.2% of portable speakers.
Water resistance
yes
This portable speaker is water resistant. 38.3% of portable speakers offer this feature.
Dust resistance
?
Waterproof depth rating
1 m
Market range: <0 m – >1 m
This portable speaker has a waterproof depth rating of 1 m which is deeper than that of 52.6% of portable speakers and equal to that of 47.4% of portable speakers.
Drop resistance
?
Show more
On-device controls placement
top
Touchscreen
no
This portable speaker does not have a touchscreen. 0.3% of portable speakers offer this feature.
Smartphone app control
no
This portable speaker does not support smartphone app control. 54% of portable speakers offer this feature.
No compatible mobile app for speaker control.
Remote control
no
This portable speaker does not include a remote control. 15% of portable speakers offer this feature.
Fast pairing
no
This portable speaker does not support fast pairing. 22.5% of portable speakers offer this feature.
Show more
Weight
2,940 g
Market range: <200 g – >5.6k g
This portable speaker weighs 2,940 g which is heavier than that of 79.4% of portable speakers.
Height
28.4 cm
Market range: <5.79 cm – >29 cm
This portable speaker has a height of 28.4 cm which is taller than that of 89.6% of portable speakers and equal to that of 0.1% of portable speakers.
Width
29.1 cm
Market range: <7.6 cm – >37 cm
This portable speaker has a width of 29.1 cm which is wider than that of 78.2% of portable speakers and equal to that of 0.2% of portable speakers.
Depth
12.8 cm
Market range: <4.3 cm – >19.97 cm
This portable speaker has a depth of 12.8 cm which is deeper than that of 71.6% of portable speakers and equal to that of 0.3% of portable speakers.
Carry options
handle
Show more
Companion app name
?
Firmware updates
no
This portable speaker does not support firmware updates. 47.2% of portable speakers offer this feature.
Firmware update method
?
Voice assistant support
no
This portable speaker does not support voice assistants. 26.5% of portable speakers offer this feature.
Supports direct voice-assistant control.
Spotify Connect
no
This portable speaker does not support Spotify Connect. 10.8% of portable speakers offer this feature.
Show more

Harman Kardon Onyx Studio 6 vs the average portable speaker

246810TotalAudioConnectivityBatteryDurabilityControlsDesignSmart features
  • 1 m deeper waterproof rating
    This portable speaker has a deeper waterproof depth rating than the average portable speaker (1 m vs 0 m).
    1 m vs 0 m
  • 30 W more audio output power
    This portable speaker has more audio output power than the average portable speaker (50 W vs 20 W).
    50 W vs 20 W
  • Includes a subwoofer
    This portable speaker includes a subwoofer, while the average portable speaker does not include a subwoofer.
    Has an integrated active subwoofer driver.
  • 1 more multipoint connections
    This portable speaker has more multipoint connections than the average portable speaker (2 vs 1).
    2 vs 1
  • Has a USB Type-C port
    This portable speaker has a USB Type-C port, while the average portable speaker does not have a USB Type-C port.
    Has a physical USB-C port.
  • Better ingress protection
    This portable speaker has better ingress protection than the average portable speaker (IPX7 vs IPX5).
    IPX7 vs IPX5
  • Includes a power adapter
    This portable speaker includes a power adapter, while the average portable speaker does not include a power adapter.
  • 10 Hz deeper bass extension
    This portable speaker has deeper bass extension than the average portable speaker (50 Hz vs 60 Hz).
    50 Hz vs 60 Hz
  • 18.2% higher user score
    User score
    9.5/ 10
    ✕
    What it is
    A rating that combines user reviews with the total review volume for products in the Portable Speakers category.
    When it matters
    When you want to know how products in the Portable Speakers category perform in everyday use and how reliable owners find them over time.
    Score distribution
    â–¼
    â–¼
    <55-66-77-88-99-10
    Harman Kardon Onyx Studio 6
    the average portable speaker
    Harman Kardon Onyx Studio 6 has a higher user score than the average portable speaker (9.46 vs 8).
    9.46 vs 8
  • 2.27x more popular
    Harman Kardon Onyx Studio 6 is more popular than the average portable speaker (9.57 vs 4.21).
    9.57 vs 4.21
  • Includes a subwoofer
    This portable speaker includes a subwoofer, while the average portable speaker does not include a subwoofer.
    Has an integrated active subwoofer driver.
  • 30 W more audio output power
    This portable speaker has more audio output power than the average portable speaker (50 W vs 20 W).
    50 W vs 20 W
  • 10 Hz deeper bass extension
    This portable speaker has deeper bass extension than the average portable speaker (50 Hz vs 60 Hz).
    50 Hz vs 60 Hz
  • 1 more multipoint connections
    This portable speaker has more multipoint connections than the average portable speaker (2 vs 1).
    2 vs 1
  • Has a USB Type-C port
    This portable speaker has a USB Type-C port, while the average portable speaker does not have a USB Type-C port.
    Has a physical USB-C port.
  • Includes a power adapter
    This portable speaker includes a power adapter, while the average portable speaker does not include a power adapter.
  • 683 mAh more battery capacity
    This portable speaker has a larger battery capacity than the average portable speaker (3,283 mAh vs 2,600 mAh).
    3,283 mAh vs 2,600 mAh
  • 1 m deeper waterproof rating
    This portable speaker has a deeper waterproof depth rating than the average portable speaker (1 m vs 0 m).
    1 m vs 0 m
  • Better ingress protection
    This portable speaker has better ingress protection than the average portable speaker (IPX7 vs IPX5).
    IPX7 vs IPX5
  • 2 hours longer charging time
    This portable speaker has a longer charging time than the average portable speaker (5 hours vs 3 hours).
    5 hours vs 3 hours
  • Does not support smartphone app control
    This portable speaker does not support smartphone app control, while the average portable speaker supports smartphone app control.
    No compatible mobile app for speaker control.
  • 4 hours shorter battery life
    This portable speaker has a shorter battery life than the average portable speaker (8 hours vs 12 hours).
    8 hours vs 12 hours
  • 78 ms higher audio latency
    This portable speaker has higher audio latency than the average portable speaker (163 ms vs 85 ms).
    163 ms vs 85 ms
  • 6 fewer paired devices remembered
    This portable speaker remembers fewer paired devices than the average portable speaker (2 vs 8).
    2 vs 8
  • 2,140 g heavier
    This portable speaker is heavier than the average portable speaker (2,940 g vs 800 g).
    2,940 g vs 800 g
  • 0.8 Bluetooth levels older
    This portable speaker has an older Bluetooth version than the average portable speaker (4.2 vs 5).
    4.2 vs 5
  • Does not provide voice prompts
    This portable speaker does not provide voice prompts, while the average portable speaker provides voice prompts.
    No spoken status prompts; feedback is absent, visual, or tone-based.
  • 2x more expensive
    Harman Kardon Onyx Studio 6 is more expensive than the average portable speaker (£180 vs £90).
    £180 vs £90
  • 78 ms higher audio latency
    This portable speaker has higher audio latency than the average portable speaker (163 ms vs 85 ms).
    163 ms vs 85 ms
  • 1 dB SPL lower maximum sound pressure
    This portable speaker has a lower maximum sound pressure level than the average portable speaker (91 dB SPL vs 92 dB SPL).
    91 dB SPL vs 92 dB SPL
  • 6 fewer paired devices remembered
    This portable speaker remembers fewer paired devices than the average portable speaker (2 vs 8).
    2 vs 8
  • 0.8 Bluetooth levels older
    This portable speaker has an older Bluetooth version than the average portable speaker (4.2 vs 5).
    4.2 vs 5
  • 2 hours longer charging time
    This portable speaker has a longer charging time than the average portable speaker (5 hours vs 3 hours).
    5 hours vs 3 hours
  • 4 hours shorter battery life
    This portable speaker has a shorter battery life than the average portable speaker (8 hours vs 12 hours).
    8 hours vs 12 hours
  • Does not support smartphone app control
    This portable speaker does not support smartphone app control, while the average portable speaker supports smartphone app control.
    No compatible mobile app for speaker control.
  • Does not provide voice prompts
    This portable speaker does not provide voice prompts, while the average portable speaker provides voice prompts.
    No spoken status prompts; feedback is absent, visual, or tone-based.
  • 2,140 g heavier
    This portable speaker is heavier than the average portable speaker (2,940 g vs 800 g).
    2,940 g vs 800 g
  • 16 cm taller
    This portable speaker is taller than the average portable speaker (28.4 cm vs 12.4 cm).
    28.4 cm vs 12.4 cm
  • 11 cm wider
    This portable speaker is wider than the average portable speaker (29.1 cm vs 18.1 cm).
    29.1 cm vs 18.1 cm
  • 4.5 cm deeper
    This portable speaker is deeper than the average portable speaker (12.8 cm vs 8.3 cm).
    12.8 cm vs 8.3 cm

Video reviews

Hands-on testing, unboxing, and real-world video evaluations

Expert reviews

In-depth analysis and verdict from leading tech publications

P
pcmag.com
10/09/2020
Summary of the review
Harmon Kardon Onyx Studio 6 Review - PCMag
U
uk.pcmag.com
10/09/2020
Summary of the review
Harmon Kardon Onyx Studio 6 - Review 2020 - PCMag UK
R
rtings.com
16/02/2021
Summary of the review
Harman/Kardon Onyx Studio 6 Speaker Review - RTINGS.com
A
au.pcmag.com
11/09/2020
Summary of the review
Harmon Kardon Onyx Studio 6 - Review 2020 - PCMag Australia
G
gadgetpilipinas.net
28/10/2020
Summary of the review
Review: Harman Kardon Onyx Studio 6 Bluetooth Speaker
Q
quechoisir.org
N/A
Summary of the review
Harman Kardon Onyx Studio 6 Test - Archive - Que Choisir
(Translated)Show original
P
pisapapeles.net
01/09/2020
Summary of the review
Harman Kardon Onyx Studio 6 wireless speaker review
(Translated)Show original
C
culturasonora.es
Última actualización
Summary of the review
Harman Kardon Onyx Studio 6: Review of the Latest Gem
(Translated)Show original
C
consumentenbond.nl
01/01/2021
Summary of the review
Harman Kardon Onyx Studio 6 - Review, Test & Prices
(Translated)Show original

Third-party reviews

Based on ratings from across the web.
Reviews last updated: August 2026 · How we calculate this

What customers like about Harman Kardon Onyx Studio 6

  • Deep, powerful bass performance
  • Crisp and clear high frequencies
  • Premium design with an elegant fabric finish
  • Convenient integrated aluminum carrying handle
  • IPX7 waterproof rating for outdoor or poolside use
  • Simple and intuitive controls for easy operation
  • No noticeable distortion at higher volume levels
  • Supports multi-device pairing and wireless dual sound link

What customers don't like about Harman Kardon Onyx Studio 6

  • Short continuous battery life, especially at maximum volume
  • Lacks a companion mobile app and built-in adjustable EQ
  • Relatively heavy and bulky for an everyday portable speaker
  • Downmixes stereo content into mono audio
  • Long battery recharging time
  • Lacks a built-in microphone for speakerphone calls
  • Volume drop and sub-bass thinning when running on battery power alone
  • Low-contrast buttons that can be difficult to see in dim lighting

Verdict

The Harman Kardon Onyx Studio 6 is a premium portable Bluetooth 4.2 speaker featuring a 50W RMS bi-amped output driven by a single 120mm woofer and a 25mm tweeter, providing a rich, bass-heavy sound profile within a 50Hz to 20kHz frequency response range. Its standout pros include a signature elegant round aesthetic wrapped in high-quality fabric, an integrated premium aluminum handle for portability, a robust IPX7 waterproof rating for worry-free outdoor or poolside use, and the ability to wirelessly link two units for dual-sound coverage. However, notable cons include a modest battery life of up to 8 hours that requires a long 5-hour recharge cycle, a heavier design at 2,940 grams, audio compression at maximum volume levels, and reliance on an outdated charging input instead of modern USB-C.

Compare Harman Kardon Onyx Studio 6 with other products in the Portable Speakers category

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