Harman Kardon Onyx Studio 4 Speaker: Review and Price 2022

Harman Kardon Onyx Studio 4 is one of the best wireless Bluetooth speakers in the market. In this article, we will review Harman Kardon Onyx Studio 4 with its feature, user opinions, and experiences.


Pros and Cons of Harman Kardon Onyx Studio 4 Speaker

Technical characteristics of Harman Kardon Onyx Studio 4 

  • Power : 4 x 15W (AC mode); 4 x 7.5W (Battery mode).
  • Battery: 8 hours (varies by volume and use of bass).
  • Dimensions : 260mm x 278mm x 159.5mm.
  • Weight: 2061 grams.
  • Wireless connectivity: Bluetooth 4.2.
Harman Kardon Onyx Studio 4 Speaker

Samsung’s recent purchase of Harman Kardon is no accident. This company has us used to high-quality equipment, and the Harman Kardon Onyx Studio 4 Wireless Bluetooth Speaker is no exception. With a brutal sound, new functionalities, and its characteristic stamp of elegance, this speaker will fall in love just by looking at it.

The brand has recently released the new version: Harman Kardon Onyx Studio 5.


arman Kardon Onyx Studio 4 Speaker

The Harman Kardon Onyx Studio 4 portable speaker is a sight to behold. It has a very attractive oval design and invisible buttons from the front. The American company has managed to give it that Scandinavian touch that combines simplicity, modernity, and elegance, and that produces that this Bluetooth speaker combines with any space where you decide to place it. If we add to the visual enjoyment that its design aspects are designed for optimal usability, we have a product that is smart as well as attractive: like the prince of stories.

The front layer protects the two tweeters and two woofers that expel the sound of this rig, while the rear features a vibrating bass boost that gives the Harman Kardon Onyx Studio 4 a seal. The buttons are grouped together at the top of the speaker rim for a comfortable touch. Power, hands-free, Bluetooth, playback, and Harman Kardon Connect Plus allow you to explore the functionalities of the equipment. The Play and Stop button is also used to go to the next song if you press it twice. The Harman Kardon Onyx Studio 4 features fixed rear legs for easy support on surfaces and a handle for easy portability. In addition to the black model, you can find white and blue versions.


At the bottom of the device, you will find a mini USB port for direct connection, an auxiliary and direct power input. A special mention deserves the function of the plus button, which allows you to synchronize between 2 and 100 speakers. The box also includes a cable to connect to the electrical current with its adapter and an adapter for the English plug. We miss a mini-jack auxiliary cable that is not included.

The Harman Kardon Onyx Studio 4 also includes a microphone to sync with Siri or Google Now, depending on the operating system your smartphone uses iOS or Android. This allows you to answer calls or give instructions to the paired device using the “phone” button.

Sound quality

This speaker has a not inconsiderable 60W RMS power, which is mainly responsible for the intensity it can reach high volumes. Although in wireless mode this figure drops to half, the difference is not so remarkable as to be considered a defect. Soundchecks show excellent fidelity, whether in rock full of mid frequencies or hip-hop that put bass and treble to the test. If we add echo and noise cancellation technology to this, you will realize that few wireless speakers on the market reach their level.

Battery and charging system

The Onyx Studio 4 promises eight hours of uninterrupted music on a full charge. However, use at high volumes will lower this figure in at least a couple of hours and can still go up at low volumes. On the other hand, the power that this wireless speaker offers is such that you will not need to take the volume to the maximum except in special situations and places. One aspect that must be considered is that you must plan the speaker loads in advance. It takes five hours for the Harman Kardon Onyx Studio 4 to reach 100% charge, so you can’t improvise if you don’t want your birthday party to be animated by the crappy speakers of your smartphone or laptop.

arman Kardon Onyx Studio 4 Speaker back
Harman Kardon Onyx Studio 4 Speaker back

The Bose Soundlink and the Harman Kardon Onyx Studio 3 itself are good points of comparison for this speaker. And is that the Harman Kardon Onyx Studio 4 is a little lighter and smaller than the previous version, improving the portability problems that both have. They are definitely not pocket speakers or as portable as the Harman Kardon Onyx Mini, and their transport will require a backpack or the like.

In terms of sound definition, the Onyx Studio 4 has a better overall response at all frequencies, although it is slightly weaker at deep bass. To enthusiasts of this range of sound, the older version will probably look better accomplished.

Both in portability and sound, the Bose Soundlink Revolve and Revolve + reach, in our opinion, the top among their peers, surpassing even the Harman Kardon Onyx Studio 4. But to be fair, the Onyx is perhaps the only one that also cared about aesthetics, and with few differences in sound, the decision to choose one or the other will depend on personal taste. 

Opinions about the Harman Kardon Onyx Studio 4

The general impression that users have of the Harman Kardon Onyx Studio 4 is that it is a speaker with excellent power and a clean and precise sound. The Bluetooth connection is very stable, but some people have had problems when using the 3.5mm port.

arman Kardon Onyx Studio 4 Speaker with phone

What those who have already tried it value most is its sound fidelity: most emphasize that the bass and treble are exact and that its design is also very attractive. Regarding the battery, some users have assured us that they have managed to obtain more than ten hours of continuous playback using 15% of the volume, which is quite drastic.

In fact, no buyer has been able to deny the sound quality that the Harman Kardon Onyx Studio 4 provides. However, one user reported an occasional interruption problem when using the 3.5mm port with cables from three different brands, and Another person told us that they had problems with the app, as it did not get to connect well with the speaker. However, these are isolated cases that could be solved.

On the other hand, another user complained that the volume does not increase as much when plugging the speaker into the electrical current, unlike previous models. But overall, everyone who used the Onyx Studio 4 was more than satisfied with its sound and experienced stable connections.

Technical characteristics of Harman Kardon Onyx Studio 4

Technical specificationsHarman Kardon Onyx Studio 4
ColorsBlack, blue, white
Weight2061 grams
Dimensions260mm x 278mm x 159.5mm
Frequency response50Hz – 20kHz
Radio signal to noise80dB
Power4 x 15W (AC mode); 4 x 7.5W (Battery mode)
Woofers2 x 75mm
Tweeters2 x 20mm
ConnectivityBluetooth 4.2
Drums3.7V / 3000mAh Lithium-ion
Battery Life8 hours
Loading time5 hours


The accolades fall short for the Harman Kardon Onyx Studio 4. The beauty and quality of this device are multiplied when you discover that its launch price has dropped quite a bit in recent months.

Although the battery charging time and the excess of minimalism in the number of buttons can be a bit annoying, this is one of those guaranteed flip products. Interested? Find the best prices on Amazon.

Hope this review about Harman Kardon Onyx Studio 4 Wireless Bluetooth Speaker is helpful to you. If you have any question, comment them below.

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