Harman Kardon Onyx Studio 4


Portable Bluetooth Speaker

kr 4.000,004000.0 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
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Harman Kardon Onyx Studio 4 is rated 4.3 out of 5 by 100.
Rated 5 out of 5 by from I own 4. Own 2 bought 2 more, enough said. Only writing this sentence because my review was too short.
Date published: 2018-04-09
Rated 5 out of 5 by from Fits the bill perfectly. I bought this for one thing only...to lay in bed or hang out on the sofa while watching/listening to stuff (usually You Tube music vids) on my iPad Air which has a pretty crummy speaker in it. Obviously, I wanted wireless capability 1st and foremost with portability a secondary consideration. Good sound, ease of operation, good looks and ruggedness would be icing on the cake. I powered it up 24 hours ago and could not be more pleased. Great sound, huge volume and paired quickly without a bunch of drama to my device (once I figured out how to do this...I’m a techno Luddite). Obviously too early to report on battery life, ruggedness, etc but so far, I’m thrilled with this purchase. My only complaint is HK could have included at least SOME (call it Device Pairing 101) documentation for us Luddites. Eventually, I found what I needed on the HK site but it was REALLY buried!
Date published: 2018-04-08
Rated 5 out of 5 by from Sound stopped working I had this speaker since January and I used it mostly everyday, but yesterday i decided not to use it and I go and turn it today and the sound isn’t working, everything else work so fine but the sound
Date published: 2018-04-03
Rated 5 out of 5 by from Awesome Speaker My hubby bought this speaker just to try it out (we usually get Bose), after I suggested he try Harman Kardon since they made speakers for some Mercedes Benz models. This speaker delivers awesome sound quality. The bass is crazy!! (And I mean the good crazy) My sons love it so much they're purchasing their own. I also love that more than one person can connect to the bluetooth at one time, and that you can sync several of these together. Imagine having a party with these babies!! I'm very happy with this purchase. Glad we bought it. Now to try out the headphones.
Date published: 2018-03-31
Rated 5 out of 5 by from Great Sound! This speaker sounds great and has tons of base! The white color looks so classy too! The only problem is that the app doesn't work on my phone, keeps telling me to pair it when it already is.
Date published: 2018-03-25
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I purchased four onyx studio 4 and have misplaced the manuals. please advise on how to pair them all together?

Asked by: Latarsha
To take advantage of the HK Connect + feature for the Onyx Studio 4's, play music on one of your HK speakers and then press the HK Connect+ button (located on top panel) on all desired speakers to start pairing. All the other HK speakers will play same music from the music source. You can also download the Quick Start Guide on the link below, scroll down to Specs and click on the Manuals and Downloads tab:  https://www.harmankardon.com/bluetooth-speakers/ONYX+STUDIO+4.html
Answered by: Paul C
Date published: 2018-04-19

My speaker won't function without power cord also Bluetooth light not coming on. Am i missing something ?

Asked by: Sultan
Ensure that your Onyx Studio 4 is fully charged. Charging time can take up to 5 hours. If issue persist, 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: Paul C
Date published: 2018-04-14

Hi! which models are compatible with HK CONNECT+? Only can I pair my ONYX STUDIO 4 with same models?

Asked by: iZero
The HK Connect + feature is only available to Onyx Studio 4 products at this time. You can pair up to more than a 100 of it. 
Answered by: Paul C
Date published: 2018-04-14

Can I connect my Onyx Mini to my Studio 4?

Asked by: dwith
It's not possible to connect the Onyx Mini to the Onyx Studio 4. Onyx Mini only have dual Wireless sound which only works with an Onyx Mini or Onyx Studio 3. You may only connect the Onyx Studio 4 with an Onyx Studio 4 that has HK Connect.
Answered by: Jemson G
Date published: 2018-04-14

Firmware updates. Do we have such so as to clear the problems other users are experiencing with their devices. If so, How do you go about it?

Asked by: JuliusA
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: Nick F
Date published: 2018-04-15

I bought 4 of this product and connected one to my TV via auxiliary cable to listen to music and watch movies.The rest of the 3 speakers i then connected to the master speaker. The audio cuts in and out intermittently and sometimes goes off.Frustrating!!

Asked by: JuliusA
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: Nick F
Date published: 2018-04-11

Hi, is it possible to connect onyx Studio 4 with any JBL speaker that has connect +? Example: two onyx Studio 4 and a jbl boombox all sounding together. And It would be stereo sound?Thank you for the answer

Asked by: Lautaro
The HK Connect + feature of Onyx Studio 4 will not work with speakers of JBL that have JBL Connect +. It is not compatible and will not connect to each other.
Answered by: V Jay
Date published: 2018-04-10

What is the difference between the Onyx Studio 3 & 4 ? And can you pair up ?

Asked by: sirlaughalot
Hi, Thank you for your question. Onyx Studio 3 has a technology called HK Connect, where you can pair two Onyx Studio 3 together for party mode. The Onyx Studio 4 features HK Connect+, where you can pair up to 100+ Onyx Studio 4 speakers together or connect with two speakers for the powerful stereo mode. You are not able to pair Onyx Studio 3 with Onyx Studio 4 or vice versa since they feature a different Connect technology.
Answered by: Danny HARMAN
Date published: 2018-04-09
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