Harman Kardon Onyx Studio 4


Portable Bluetooth Speaker

£199.99199.99 each
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In stock. Estimated delivery time 2-4 business days

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 4.2 out of 5 by 189.
Rated 5 out of 5 by from Yaaaass I’ve only had it for a week or 2, but love it. Purchased one for my sister and I!!! So far I love it!!!
Date published: 2019-01-18
Rated 5 out of 5 by from Amazing sound... Bad app for Stereo mode I've become a Bluetooth speaker junkie and these are wonderful in all areas, execpt two the app to connect stereo mode is a test of patience..plan a extra 15 minutes out of your day ,never seems consistent no matter what divice I'm pairing with and more than half the time the app just keeps closing.. I also wish they had Auto shutoff after a certain amount of time like my Onyx minis do . But other than that the best for home use, get 2,put in stereo mode (eventually), keep them plugged in for extra ummpphh and enjoy ....
Date published: 2019-01-12
Rated 5 out of 5 by from Great sound, and so far very durable I got this with a phone-deal, and I am very happy with it. I've used it both indoors, and outdoors. At an industrial site, and in the bathroom, and so far i've not noticed any problems with the quality except for slightly reduced sound level, but i suspect this might just be dust in the "filter"
Date published: 2019-01-10
Rated 5 out of 5 by from Beautiful sound! After researching several different brands of Bluetooth speakers I chose the Onyx studio 4 without even hearing it in person. The reviews out there are extensive and extremely detailed regarding this product. I was NOT disappointed. I love everything about this speaker. Crisp clear sound and deep rich bass all while maintaining clarity. This speaker will last and is built very well and is easily transferable by the nice hand hold at the top.
Date published: 2019-01-05
Rated 5 out of 5 by from So crisp Got it for Christmas couldnt be happier! The white is beautiful
Date published: 2019-01-04
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How do i connect my onyx 4 to the connect app

Asked by: Jese409
Simply turn on the Onyx studio 4 and the Connect app on your phone and it should detect it.
Answered by: Mario at Customer Service
Date published: 2019-01-20

Does the Onyx Studio 4 speaker use the aptx codec? (my Onyx Studio 2 does not) If not, why not? I especially like the low latency of aptx for movies.

Asked by: Gtbuzz
The Onyx studio 4 doesn't support Aptx as the Onxy studio 4 is mainly used for music which doesn't require Aptx .
Answered by: Mario at Customer Service
Date published: 2019-01-20

Can I connect my harman kardon onyx 4 and my JBL flip 4 since they use the same connect + technology?

Asked by: Fred Shaw
Thank you for contacting us. Yes, it is possible to Connect JBL Connect + and HK Connect + devices together to play audio from the same source simultaneously. If you need further assistance, please submit a case request at  https://www.harmanaudio.com/support-contact.html and the Customer Service Team will be more than happy to assist you.
Answered by: Thilo
Date published: 2019-01-17

can 2 of the onyx 4"s be pair to the same device..and provide more sound..? i want to buy 2..but pair them both with 1 device

Asked by: wendell53
Thanks you for your inquiry. Yes, you can connect more than one Onyx 4 to your device. If you download the HK connect app you can determine, if you want them to act as a stereo pair, or two single speakers. If you need further assistance, please submit a case request at https://www.harmanaudio.com/support-contact.html and the Customer Service Team will be more than happy to assist you.
Answered by: Thilo
Date published: 2019-01-16

Could you please share Onyx Studio 4 Box and also product dimensions..

Asked by: TAŞO
Thanks for your enquiry. The dimension of the product are (H x W x D): 260mm x 278mm x 159.5mm. You can find this and other informations such as a picture of the packaging on the 'Specs&Details' section of the product web site. If you need further assistance, please submit a case request at  https://www.harmanaudio.com/support-contact.html and the Customer Service Team will be more than happy to assist you.
Answered by: Thilo
Date published: 2019-01-16

While paired with 2 phones, the second phone interferes with and stops music from playing an ytime a button is pressed on other phone. Have to turn off 2nd bluetooth to prevent this. How can i avoid this

Asked by: Jwinmd
We would like to work with you directly to help you with your issue. Please submit a case request at  https://www.harmanaudio.com/support-contact.html and the Customer Service Team will be more than happy to assist you.
Answered by: Harman Stefano
Date published: 2019-01-14

Can I connect onyx to omni bar+ ? ( for use as back speakers in a surround setup )

Asked by: Nick245
No. You can only connect Harman Kardon Omni+ speakers to the Omni Bar Plus soundbar.
Answered by: Eugene B
Date published: 2019-01-12

Can I connect my harmonkardon4 to my Bose radio

Asked by: Maureen
The Harman Kardon Onyx Studio 4 has a Bluetooth receiver and 3.5mm jack. If your Bose radio has a Bluetooth transmitter or Auxiliary Out then yes, you can connect the two.
Answered by: Rhae C
Date published: 2019-01-11
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