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Harman Kardon Onyx Studio 6 Review | 130 Data compared

Avg. price in UK: ~£180
Avg. price in US: ~$150
Audio output power: 50.00 W
Battery life: 8 hours
IP rating: IPX7
Bluetooth version: 4.2
Weight: 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.

7.1

Very good

6.4

Good

9.6

Exceptional

7.2
Outdoor durability
Score components:
40.0%
10
Water resistance
25.0%
5.7
IP rating
20.0%
7.0
Weight
15.0%
2.8
Battery life
5.4
Powerful sound
Score components:
45.0%
6.9
Audio output power
25.0%
2.8
Battery life
15.0%
7.0
Weight
15.0%
4.0
Party mode
5.0
Home listening
Score components:
35.0%
4.0
Multi-room support
30.0%
4.0
Wi-Fi connectivity
20.0%
6.9
Audio output power
15.0%
7.0
Weight

Best prices in UK

Best rankings

#12 in Best Harman Kardon portable speakers
#148 in Best big portable speakers
#226 in Best portable speakers with microphone
#303 in Best waterproof portable speakers
#415 in Best portable speakers
#456 in Best portable speakers for home

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5-hour recharge cycle, a heavier design at 2,940 grams, audio compression at maximum volume levels, and reliance on an outdated charging input instead of modern USB-C.

Technical Specifications of portable speaker Harman Kardon Onyx Studio 6

Overall score

7.1

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Popularity

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.

Audio

7.2

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Audio output power

What it is: The maximum continuous power the speaker system can deliver.

When it matters: When you need enough output to fill a larger or noisier space.

Importance: HIGH

Good value: >= 20 W

Driver unit size

What it is: The diameter of each main speaker driver.

When it matters: When the size of the main driver influences bass reach and output capability.

Importance: HIGH

Good value: >= 50 mm

?

Number of drivers

What it is: The total number of speaker drivers built into the unit.

When it matters: When fuller driver arrays and broader sound coverage matter.

Importance: MEDIUM

Good value: >= 2

Frequency response tolerance

What it is: The allowed deviation around the stated frequency response curve.

When it matters: When a flatter and more accurate frequency response matters.

Importance: MEDIUM

Good value: <= 3 dB

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Lowest frequency

What it is: The lowest audible frequency the speaker can reproduce.

When it matters: When deeper bass extension matters.

Importance: HIGH

Good value: <= 60 Hz

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Connectivity

5.8

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Bluetooth connectivity

What it is: Indicates whether the speaker can receive audio over Bluetooth.

When it matters: When wireless playback from phones, tablets, or computers matters.

Importance: MEDIUM

Good value: yes

Bluetooth version

What it is: The generation of Bluetooth supported by the speaker hardware.

When it matters: When compatibility and efficiency with newer Bluetooth devices matter.

Importance: LOW

Good value: >= 5.0

Maximum Bluetooth range

What it is: The farthest distance at which the Bluetooth link can remain usable.

When it matters: When the source device may be far from the speaker.

Importance: MEDIUM

Good value: >= 10 m

Bluetooth profiles supported

What it is: The Bluetooth operating profiles available for playback, control, or calls.

When it matters: When Bluetooth playback, control, and call compatibility depend on specific profiles.

Importance: LOW

A2DP; AVRCP

Bluetooth LE Audio

What it is: Shows whether the speaker supports the low-energy Bluetooth audio standard.

When it matters: When newer low-power Bluetooth audio features matter.

Importance: LOW

Good value: yes

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Battery

5.4

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Battery life

What it is: The playback time available from one full battery charge.

When it matters: When you need longer playback between charges.

Importance: HIGH

Good value: >= 20 h

Battery capacity

What it is: The amount of electrical charge the internal battery can store.

When it matters: When longer untethered playback or power-bank use needs more stored charge.

Importance: HIGH

Good value: >= 5000 mAh

Charging time

What it is: The time needed to recharge the battery fully.

When it matters: When the speaker needs to be ready again quickly.

Importance: MEDIUM

Good value: <= 4 h

Maximum charging input power

What it is: The maximum charging power the speaker can accept from a compatible power source.

When it matters: When faster charging requires the speaker to accept more input power.

Importance: LOW

Good value: >= 20 W

?

Built-in rechargeable battery

What it is: Indicates whether the speaker uses a battery that can be recharged.

When it matters: When portable use without disposable batteries or continuous mains power matters.

Importance: LOW

Good value: yes

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Durability

8.0

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IP rating

What it is: The ingress protection code for dust and water resistance.

When it matters: When dust and water protection need to match the intended environment.

Importance: HIGH

Good value: IP67+

Water resistance

What it is: Indicates whether the enclosure can resist water exposure.

When it matters: When the speaker may be used near pools, rain, or splashes.

Importance: MEDIUM

Good value: yes

Dust resistance

What it is: Shows whether the enclosure is protected against dust ingress.

When it matters: When the speaker may be exposed to sand, soil, or dusty environments.

Importance: MEDIUM

Good value: yes

?

Waterproof depth rating

What it is: The maximum water depth the speaker is rated to withstand.

When it matters: When the speaker may be submerged or used very close to water.

Importance: MEDIUM

Good value: >= 1 m

Drop resistance

What it is: Indicates whether the housing is designed to survive accidental drops.

When it matters: When the speaker may be bumped or suffer an accidental fall during outdoor or travel use.

Importance: LOW

Good value: yes

?

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Controls

4.6

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On-device controls placement

What it is: The physical area of the speaker where its controls are located.

When it matters: When you want controls that are easy to reach in the speaker intended placement.

Importance: LOW

top

Touchscreen

What it is: Indicates whether a touch-sensitive screen is integrated.

When it matters: When direct visual control is more convenient than buttons or an app.

Importance: LOW

Good value: yes

Smartphone app control

What it is: Shows whether the speaker can be controlled from a phone app.

When it matters: When remote settings, updates, or sound adjustment from a phone matter.

Importance: LOW

Good value: yes

Remote control

What it is: Indicates whether a dedicated remote control is supplied or supported.

When it matters: When you want to control playback from across the room.

Importance: LOW

Good value: yes

Fast pairing

What it is: Shows whether setup with compatible devices can be completed more quickly.

When it matters: When quick setup with compatible devices matters.

Importance: LOW

Good value: yes

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Design

6.1

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Weight

What it is: The total mass of the portable speaker.

When it matters: When carrying the speaker frequently or packing light matters.

Importance: LOW

Good value: <= 1000 g

Height

What it is: The vertical external dimension of the speaker body.

When it matters: When the speaker must fit beneath shelves or in a compact bag.

Importance: LOW

Good value: <= 20 cm

Width

What it is: The side-to-side external dimension of the speaker body.

When it matters: When the speaker must fit a narrow shelf, bag, or tabletop.

Importance: LOW

Good value: <= 25 cm

Depth

What it is: The front-to-back depth of the speaker housing.

When it matters: When the speaker should take up less front-to-back space.

Importance: LOW

Good value: <= 10 cm

Carry options

What it is: The available ways to carry, hang, or attach the speaker.

When it matters: When a handle, strap, or attachment point changes how you carry the speaker.

Importance: LOW

handle

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Smart features

4.1

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Companion app name

What it is: The official app used to control settings and functions of the speaker.

When it matters: When app compatibility and the available control features depend on the official app.

Importance: LOW

?

Firmware updates

What it is: Indicates whether the speaker can receive firmware revisions after purchase.

When it matters: When post-purchase fixes and feature improvements matter.

Importance: LOW

Good value: yes

Firmware update method

What it is: The path used to install firmware updates on the speaker.

When it matters: When the convenience and reliability of installing updates matters.

Importance: LOW

?

Voice assistant support

What it is: Indicates whether the speaker can work with supported voice assistants.

When it matters: When hands-free control through a compatible assistant matters.

Importance: LOW

Good value: yes

Spotify Connect

What it is: Shows whether Spotify can stream directly to the speaker over the network.

When it matters: When Spotify should stream directly without keeping phone audio active.

Importance: LOW

Good value: yes

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Harman Kardon Onyx Studio 6 vs the average portable speaker

Why is Harman Kardon Onyx Studio 6 better than the average portable speaker?

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1 m deeper waterproof rating
Harman Kardon Onyx Studio 6 has a deeper waterproof depth rating than the average portable speaker (1 m vs 0 m).
What it is: The maximum water depth the speaker is rated to withstand.
When it matters: When the speaker may be submerged or used very close to water.
Importance: MEDIUM
Good value: >= 1 m
Harman Kardon Onyx Studio 6 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
Harman Kardon Onyx Studio 6 has more audio output power than the average portable speaker (50 W vs 20.00 W).
Total RMS output: 50.00 W.
What it is: The maximum continuous power the speaker system can deliver.
When it matters: When you need enough output to fill a larger or noisier space.
Importance: HIGH
Good value: >= 20 W
Harman Kardon Onyx Studio 6 has more audio output power than the average portable speaker (50 W vs 20.00 W).50.00 W vs 20.00 W
Includes a subwoofer
Harman Kardon Onyx Studio 6 includes a subwoofer, while the average portable speaker does not include a subwoofer.
Has an integrated active subwoofer driver.
What it is: Indicates whether a dedicated low-frequency driver is included.
When it matters: When stronger low-frequency output matters without adding separate equipment.
Importance: LOW
Good value: yes
Harman Kardon Onyx Studio 6 includes a subwoofer, while the average portable speaker does not include a subwoofer.
1 more multipoint connections
Harman Kardon Onyx Studio 6 has more multipoint connections than the average portable speaker (2 vs 1).
Simultaneous Bluetooth devices: 2.
What it is: The number of source devices that can stay connected at the same time.
When it matters: When switching between several connected source devices matters.
Importance: MEDIUM
Good value: >= 2
Harman Kardon Onyx Studio 6 has more multipoint connections than the average portable speaker (2 vs 1).2 vs 1
Has a USB Type-C port
Harman Kardon Onyx Studio 6 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.
What it is: Indicates whether the device uses a USB Type-C connector.
When it matters: When modern charging and connection compatibility matter.
Importance: LOW
Good value: yes
Harman Kardon Onyx Studio 6 has a USB Type-C port, while the average portable speaker does not have a USB Type-C port.
Better ingress protection
Harman Kardon Onyx Studio 6 has better ingress protection than the average portable speaker (IPX7 vs IPX5).
What it is: The ingress protection code for dust and water resistance.
When it matters: When dust and water protection need to match the intended environment.
Importance: HIGH
Good value: IP67+
Harman Kardon Onyx Studio 6 has better ingress protection than the average portable speaker (IPX7 vs IPX5).IPX7 vs IPX5
Includes a power adapter
Harman Kardon Onyx Studio 6 includes a power adapter, while the average portable speaker does not include a power adapter.
What it is: Indicates whether a dedicated power adapter is included in the box.
When it matters: When you want the required charging hardware supplied in the box.
Importance: LOW
Good value: yes
Harman Kardon Onyx Studio 6 includes a power adapter, while the average portable speaker does not include a power adapter.
10 Hz deeper bass extension
Harman Kardon Onyx Studio 6 has deeper bass extension than the average portable speaker (50 Hz vs 60.00 Hz).
Lower frequency-response endpoint: 50.00 Hz.
What it is: The lowest audible frequency the speaker can reproduce.
When it matters: When deeper bass extension matters.
Importance: HIGH
Good value: <= 60 Hz
Harman Kardon Onyx Studio 6 has deeper bass extension than the average portable speaker (50 Hz vs 60.00 Hz).50.00 Hz vs 60.00 Hz
Includes a subwoofer
Harman Kardon Onyx Studio 6 includes a subwoofer, while the average portable speaker does not include a subwoofer.
30 W more audio output power
Harman Kardon Onyx Studio 6 has more audio output power than the average portable speaker (50 W vs 20.00 W).
10 Hz deeper bass extension
Harman Kardon Onyx Studio 6 has deeper bass extension than the average portable speaker (50 Hz vs 60.00 Hz).
1 more multipoint connections
Harman Kardon Onyx Studio 6 has more multipoint connections than the average portable speaker (2 vs 1).
Has a USB Type-C port
Harman Kardon Onyx Studio 6 has a USB Type-C port, while the average portable speaker does not have a USB Type-C port.
Includes a power adapter
Harman Kardon Onyx Studio 6 includes a power adapter, while the average portable speaker does not include a power adapter.
683 mAh more battery capacity
Harman Kardon Onyx Studio 6 has a larger battery capacity than the average portable speaker (3,283 mAh vs 2,600 mAh).
1 m deeper waterproof rating
Harman Kardon Onyx Studio 6 has a deeper waterproof depth rating than the average portable speaker (1 m vs 0 m).
Better ingress protection
Harman Kardon Onyx Studio 6 has better ingress protection than the average portable speaker (IPX7 vs IPX5).

Why is Harman Kardon Onyx Studio 6 worse than the average portable speaker?

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78 ms higher audio latency
Harman Kardon Onyx Studio 6 has higher audio latency than the average portable speaker (163 ms vs 85 ms).
Audio latency: 163 ms.
1 dB SPL lower maximum sound pressure
Harman Kardon Onyx Studio 6 has a lower maximum sound pressure level than the average portable speaker (91 dB SPL vs 92.00 dB SPL).
Sound pressure level: 91.00 dB.
6 fewer paired devices remembered
Harman Kardon Onyx Studio 6 remembers fewer paired devices than the average portable speaker (2 vs 8).
Remembered Bluetooth devices: 2.
0.8 Bluetooth levels older
Harman Kardon Onyx Studio 6 has an older Bluetooth version than the average portable speaker (4.2 vs 5.0).
Bluetooth version: 4.2.
2 hours longer charging time
Harman Kardon Onyx Studio 6 has a longer charging time than the average portable speaker (5 hours vs 3 hours).
4 hours shorter battery life
Harman Kardon Onyx Studio 6 has a shorter battery life than the average portable speaker (8 hours vs 12 hours).
Does not support smartphone app control
Harman Kardon Onyx Studio 6 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
Harman Kardon Onyx Studio 6 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
Harman Kardon Onyx Studio 6 is heavier than the average portable speaker (2,940 g vs 800 g).
16 cm taller
Harman Kardon Onyx Studio 6 is taller than the average portable speaker (28.4 cm vs 12.4 cm).
11 cm wider
Harman Kardon Onyx Studio 6 is wider than the average portable speaker (29.1 cm vs 18.1 cm).
4.5 cm deeper
Harman Kardon Onyx Studio 6 is deeper than the average portable speaker (12.8 cm vs 8.3 cm).
2 hours longer charging time
Harman Kardon Onyx Studio 6 has a longer charging time than the average portable speaker (5 hours vs 3 hours).
What it is: The time needed to recharge the battery fully.
When it matters: When the speaker needs to be ready again quickly.
Importance: MEDIUM
Good value: <= 4 h
Harman Kardon Onyx Studio 6 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
Harman Kardon Onyx Studio 6 does not support smartphone app control, while the average portable speaker supports smartphone app control.
No compatible mobile app for speaker control.
What it is: Shows whether the speaker can be controlled from a phone app.
When it matters: When remote settings, updates, or sound adjustment from a phone matter.
Importance: LOW
Good value: yes
Harman Kardon Onyx Studio 6 does not support smartphone app control, while the average portable speaker supports smartphone app control.
4 hours shorter battery life
Harman Kardon Onyx Studio 6 has a shorter battery life than the average portable speaker (8 hours vs 12 hours).
What it is: The playback time available from one full battery charge.
When it matters: When you need longer playback between charges.
Importance: HIGH
Good value: >= 20 h
Harman Kardon Onyx Studio 6 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
Harman Kardon Onyx Studio 6 has higher audio latency than the average portable speaker (163 ms vs 85 ms).
Audio latency: 163 ms.
What it is: The delay between the source signal and the sound you hear.
When it matters: When lip sync, gaming, or real-time monitoring matters.
Importance: LOW
Good value: <= 100 ms
Harman Kardon Onyx Studio 6 has higher audio latency than the average portable speaker (163 ms vs 85 ms).163 ms vs 85 ms
6 fewer paired devices remembered
Harman Kardon Onyx Studio 6 remembers fewer paired devices than the average portable speaker (2 vs 8).
Remembered Bluetooth devices: 2.
What it is: The number of previously paired devices the speaker can remember.
When it matters: When many household devices reconnect to the speaker regularly.
Importance: LOW
Good value: >= 8
Harman Kardon Onyx Studio 6 remembers fewer paired devices than the average portable speaker (2 vs 8).2 vs 8
2,140 g heavier
Harman Kardon Onyx Studio 6 is heavier than the average portable speaker (2,940 g vs 800 g).
What it is: The total mass of the portable speaker.
When it matters: When carrying the speaker frequently or packing light matters.
Importance: LOW
Good value: <= 1000 g
Harman Kardon Onyx Studio 6 is heavier than the average portable speaker (2,940 g vs 800 g).2940 g vs 800 g
0.8 Bluetooth levels older
Harman Kardon Onyx Studio 6 has an older Bluetooth version than the average portable speaker (4.2 vs 5.0).
Bluetooth version: 4.2.
What it is: The generation of Bluetooth supported by the speaker hardware.
When it matters: When compatibility and efficiency with newer Bluetooth devices matter.
Importance: LOW
Good value: >= 5.0
Harman Kardon Onyx Studio 6 has an older Bluetooth version than the average portable speaker (4.2 vs 5.0).4.2 vs 5.0
Does not provide voice prompts
Harman Kardon Onyx Studio 6 does not provide voice prompts, while the average portable speaker provides voice prompts.
No spoken status prompts; feedback is absent, visual, or tone-based.
What it is: Indicates whether spoken status messages are used for user feedback.
When it matters: When spoken feedback for pairing, battery, or operating status is useful.
Importance: LOW
Good value: yes
Harman Kardon Onyx Studio 6 does not provide voice prompts, while the average portable speaker provides voice prompts.

Graphic comparison of Harman Kardon Onyx Studio 6 and other products in the Portable Speakers category

Attribute category

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Third-party reviews

United Kingdom

United States

(Reviews last updated: August 2026)

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 dislike 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

Expert reviews

pcmag.com

10/09/2020

Summary of the review

Harmon Kardon Onyx Studio 6 Review - PCMag

The PCMag review of the Harman Kardon Onyx Studio 6 highlights a design-forward, fully waterproof IPX7-rated Bluetooth speaker that excels in delivering intense, distortion-free sub-bass. Pros include a rich, booming sound with effective digital signal processing, an integrated aluminum handle, and robust construction suitable for outdoor use. However, cons feature a confusing retail pricing structure, the absence of a companion app with EQ controls to manage the heavy bass, and a lack of a speakerphone microphone.

uk.pcmag.com

10/09/2020

Summary of the review

Harmon Kardon Onyx Studio 6 - Review 2020 - PCMag UK

The Harman Kardon Onyx Studio 6 is a premium, IPX7-rated waterproof Bluetooth speaker that offers powerful audio with intense bass and crisp highs. While designed for durability, the speaker’s drawbacks include a 6.5-pound weight, a mono-only sound output, lack of EQ adjustments, and heavily sculpted audio, making it less suitable for listeners seeking a flat, accurate sound.

rtings.com

16/02/2021

Summary of the review

Harman/Kardon Onyx Studio 6 Speaker Review - RTINGS.com

The Harman/Kardon Onyx Studio 6 is an IPX7-rated, portable Bluetooth speaker featuring an elegant, durable design with an integrated handle. According to the RTINGS.com review, the speaker excels with a very balanced and neutral sound profile suitable for various genres, alongside multi-device pairing support. However, key limitations include an inability to produce deep, thumpy low-bass, the downmixing of stereo content to mono, and a complete lack of sound customization options or companion app EQ.

au.pcmag.com

11/09/2020

Summary of the review

Harmon Kardon Onyx Studio 6 - Review 2020 - PCMag Australia

The Harman Kardon Onyx Studio 6 is a waterproof (IPX7), handbag-shaped Bluetooth speaker that delivers rich, powerful bass and clear high-frequency audio. While featuring a convenient integrated handle and dual-speaker pairing, the unit lacks an accompanying app for EQ customization, built-in speakerphone functionality, or the ability to skip tracks backward. Other drawbacks noted include a modest eight-hour battery life and an omitted 3.5mm cable, making it a high-performance, yet limited-feature, audio option.

gadgetpilipinas.net

28/10/2020

Summary of the review

Review: Harman Kardon Onyx Studio 6 Bluetooth Speaker

The Gadget Pilipinas review of the Harman Kardon Onyx Studio 6 highlights it as a "barebones" premium Bluetooth speaker priced at PhP12,799 that prioritizes raw audio performance over smart features. Praised for its luxurious design and robust sound, the speaker's main drawbacks include a lack of Wi-Fi, companion app support, and virtual assistant integration, requiring reliance on source devices for EQ adjustments.

quechoisir.org

N/A

Summary of the review

Harman Kardon Onyx Studio 6 Test - Archive - Que Choisir

The Que Choisir review of the Harman Kardon Onyx Studio 6 highlights a premium design with a built-in handle, featuring robust audio performance with deep bass and good portability, while retaining a circular aesthetic. Notable drawbacks include the speaker’s heavy, bulky design, lack of NFC, and the reliance on a proprietary power adapter instead of standard charging options.

pisapapeles.net

01/09/2020

Summary of the review

Harman Kardon Onyx Studio 6 wireless speaker review

The Pisapapeles review of the Harman Kardon Onyx Studio 6 highlights a premium, waterproof speaker with excellent sound, featuring a 120mm woofer, 25mm tweeter, and an IPX7 rating. Despite these strengths, the review notes significant limitations, including a short 8-hour battery life, outdated Bluetooth 4.2 connectivity, a heavy 3kg design, and a non-universal charging port.

culturasonora.es

Última actualización

Summary of the review

Harman Kardon Onyx Studio 6: Review of the Latest Gem

The Harman Kardon Onyx Studio 6 is a premium, fabric-wrapped Bluetooth speaker featuring an IPX7 waterproof design and an integrated handle, delivering deep bass through a 4.7-inch woofer and 1-inch tweeter. While praised for its robust build, the speaker is limited by an outdated Bluetooth 4.2 connection, an average 8-hour battery life, and a mono-only output that requires a second unit for true stereo sound.

consumentenbond.nl

01/01/2021

Summary of the review

Harman Kardon Onyx Studio 6 - Review, Test & Prices

The Harman Kardon Onyx Studio 6 is a portable Bluetooth speaker praised by the Consumentenbond for its high mobility, built-in rechargeable battery, and useful AUX line input. While offering solid connectivity, the review notes significant limitations, including the lack of a dedicated companion app for functionality management and the inability to use its USB port as a power bank to charge other devices.

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

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