Harman Kardon Onyx Studio 4


Portable Bluetooth Speaker

£199.99199.99 each
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Elegant design full of features and superior sound

Providing the perfect balance of great sound, iconic design, and premium materials, the Onyx Studio 4 is the epitome of room-filling audio. Crafted to be the best sounding, full featured, portable Bluetooth speaker in its class, the Onyx Studio 4 offers two device connections, 8 hours of playtime and Harman Kardon Connect+, which allows you to connect 100+ speakers with the same feature with the touch of a button. Rounding out the Onyx Studio 4 offerings is a built-in microphone with Voicelogic, echo and noise cancellation for crystal-clear conferencing over the speaker.


General Specifications

Support A2DP 1.3, AVRCP 1.6, HFP 1.6
Transducers Woofer 2 x 75mm, Tweeter 2 x 20mm
Rated Power 4 x 15W (AC mode); 4 x 7.5W (Battery mode)
Frequency response 50Hz - 20kHz (-6dB)
Signal to noise ratio 80dB A-weighted
Weight: 2061g Yes


Dimension (H x W x D): 260mm x 278mm x 159.5mm Yes

Control and Connection Specifications

Bluetooth version: 4.2 Yes
Bluetooth transmitter power 0 - 9dBm
Bluetooth transmitter frequency range 2402MHz - 2480MHz
Bluetooth transmitter modulation GFSK, π/4 DQPSK, 8DPSK


Power supply 19V/2A
Battery type 3.7V/3000mAh Lithium-ion
Battery charge time 5 hours
Music playtime up to 8 hours (Varies by volume level and music content)
Click here for a complete list of all specs for this product

Spec Sheet (EN)

709 KB
  • 1 x Harman Kardon Onyx Studio 4
  • 1 x Power adaptor
  • 1 x Quick start guide
  • 1 x Safety sheet
  • 1 x Warranty card

The latest owner's manuals, quick start guides, and documents.

Harman Kardon Onyx Studio 4 is rated 4.1 out of 5 by 18.
Rated 5 out of 5 by from This thing is Amazing I bought this at Best Buy and this thing is amazing. Great sound, super easy to connect and awesome battery life. I am planning to get another one to pair with it for my computer at the home office. I love to play music pretty loud and this thing does the trick!
Date published: 2017-11-15
Rated 5 out of 5 by from BASS. BLUE TOOTH. SYNC QUICK AND EASY my friend came across a very used Harman kardon onyx speaker. wow! it is so loud clear great sound. we use it for our christmas parties and new years outside...its all we need ! SO PERFECT! SAVING FOR A NEW ONE. NOT THAT WE NEED IT. I WANT MY OWN LOL SINCERELY, FRANICE de LEON
Date published: 2017-10-29
Rated 5 out of 5 by from Great durable speaker! For a long time I was buying cheap speakers here and there, but my sister and I decided to buy two of these and ITS amazing for when we have parties at our house, track meets, and so much more! 10 out of 10 highly recommend
Date published: 2017-10-10
Rated 5 out of 5 by from Excellent Since I received the speaker I havent stopped listening to music. The sound is so clear and the bass is amazing for size of speaker I think. But I find that the quality of sound of the music to begin with must be good to be able to enjoy the speakers full potential. Excellent I love it, take it round the house with me.
Date published: 2017-10-05
Rated 5 out of 5 by from Amazing I got this for birthday present 5 days ago. I have no words. I really love the high quality products, the high quality music. The design, the sound, everything is perfect. Crystal clear highs, very powerful basses. Very detailed soundscape. This is the best in this price range ( in Hungary it's just 200$ ). I have in blue colour, really nice! Fully recommended speaker! :)
Date published: 2017-09-03
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I bought ONYX+STUDIO+4 speaker and now I am wondering does this speaker function also in my home at Finland ? at least plug should be different ....

Asked by: Sede17
The power supply for the ONYX STUDIO 4 is set to Auto Volt so you can plug the unit into either a 110v outlet or a 220v outlet without any issues.
Answered by: Mario at Customer Service
Date published: 2017-11-22

Can I connect Onxy 4 with onxy 3

Asked by: Vimal
Unfortunately the Onyx Studio 3 and Onyx Studio 4 are not compatible in terms of speaker connectivity because they have different proprietary features. The Onyx Studio 3 has the Dual Wireless feature which lets a maximum of (2) speakers connect together while the Onyx Studio 4, on the other hand, has the HK Connect+ feature, our newest feature that allows up to a hundred devices with the same feature to connect to each other. In this case you will need 2 studio 4's and pair it together.
Answered by: Mario at Customer Service
Date published: 2017-11-22

Can you pair Onyx Studio 3 speaker and a Onix Studio 4 so you get the stereo effect, or do I need to purchase another Studio 3 instead of 4? Thanks.

Asked by: mkirkeskov
The stereo setup was only recently introduced to the Onyx Studio 4, which is setup through the HK Connect app using two Onyx Studio 4 speakers.
Answered by: Steve S
Date published: 2017-11-22

I need to know what generation this s/n coincides FC0027-DF0136173

Asked by: Hutch503
We would like to work with you directly to help you with your issue. Please submit a case request at https://www.harmankardon.com/support-contact.html and the Customer Service Team will be more than happy to assist you.
Answered by: Steve S
Date published: 2017-11-20

Is there a slot for an sd card & if so, what size is acceptable?

Asked by: sadjam
Currently, Harman Kardon does not have any speakers that have a provision for an SD card slot; this includes the Onyx Studio 4. if you have plans to use our device with an SD card, your audio device must be SD-card and Bluetooth-speaker compatible.
Answered by: Steve S
Date published: 2017-11-20

Can I stream music from my pioneer Bluetooth-able system  to use these as rear surround sound speakers? I’m in an apartment and can’t wire rear speakers.  

Asked by: Porge
It would depend if your Pioneer system is able to connect to the Onyx studio 4 and designate it as a rear surround speaker , If your Pioneer system can do that then it would be no problem.
Answered by: Mario at Customer Service
Date published: 2017-11-22

Good day. Where do I download the Harman Kardon Onyx Studio driver software for Windows 7? Regards

Asked by: Banzi
Any drivers or updates for the Onyx Studio 4 can be downloaded from the HK Connect App. If your Windows 7 device supports Bluetooth A2DP 1.3, then no drivers would be necessary, else this is something you can download on Microsoft's website or with the help of the manufacturer of your device. if this did not help, please submit a case request at https://www.harmankardon.com/support-contact.html and the Customer Service Team will be more than happy to assist you.
Answered by: Steve S
Date published: 2017-11-16

I just bought this speaker. So i have a few questions. First, should i charge before using it? Second, how many hours are needed to be fully charged when it is run out of charge?

Asked by: Eray2k
We would recommend that you drain the initial factory charge, then charge it overnight or for at least 5 hours.
Answered by: Steve S
Date published: 2017-11-17
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