Harman Kardon Onyx Studio 4


Portable Bluetooth Speaker

£199.99199.99 each
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In stock. Estimated delivery time 3-4 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 4.1 out of 5 by 142.
Rated 5 out of 5 by from Best Best Best Again best speaker on the market the sound is incredible nice clean bass and vocals love it bought one then had to get another they both work great when connected.
Date published: 2018-12-11
Rated 5 out of 5 by from Incredible speaker I have never been so impressed by a piece of technology......it bends physics its so good!!!! It looks great and sounds even better.
Date published: 2018-12-08
Rated 5 out of 5 by from Harmon onyx 4 One of the best small speakers I have ever owned. I currently own 5 of them 1 at home and the other 4 at my retail stores. It powers the room with great sound, and very durable.
Date published: 2018-11-24
Rated 5 out of 5 by from Great sound I buy this one in onlineshop and the quality of the sound is so great and clearly to hear..
Date published: 2018-11-09
Rated 5 out of 5 by from AWESOME QUALITY OF SOUND! I bought two speakers & the sync up feature is just beautiful. LOUD for their size. So far, great value! This is one awesome product & a must have for the true music lovers
Date published: 2018-10-19
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Can I connect my PC to more than one speaker? Is there an HK Connect app for Windows 10?

Asked by: tvick09
Yes with Bluetooth from your computer. You will have to make sure they are using the same protocol. And it won't be stereo mode. It will be party mode. No through the application, there is no application available on computer. 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: remy b
Date published: 2018-12-14

I have 2 HK Onyx 4 and setup to stereo feature from HK connect, the problem is 1) Sometime the HK connect can't connect the second device, Sometime can't find the second device. 2) The sound usually loss. please suggest the solution.

Asked by: JerryD
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: Thilo
Date published: 2018-12-14

Can I charge the Onyx 4 through the mini usb port (marked as service)?

Asked by: wotal_tanker
No it is not possible, usb port marked as "service" is only for service use. Not to charge your Onyx Studio 4. 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: remy b
Date published: 2018-12-14

will it produce true stereo if i connect two studio 4 thru HK connect?

Asked by: romZ
Thank you for your question. Yes it will play a stereo sound, you will have to connect them though the app HK Connect. 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: remy b
Date published: 2018-12-12

Device supports AirPlay ???

Asked by: Melistraza
The Onyx Studio 4 does not support Airplay. It supports the following connectivity: Bluetooth Aux Input
Answered by: Eugene B
Date published: 2018-12-08

Does the Onyx 4 automatically shut off when connected through Bluetooth? I'm intending to connect it to my Google Home Mini for a better listening experience. Can the Google Assistant feature be activated through voice?

Asked by: Zelaf
Hi! No, the power saving feature cannot be disabled. Whenever the speaker is not being used for about 10 minutes, it will automatically go to power saving mode. As for the voice assistant, you may use it from the HK Connect app. On The HK Connect App, tap the Voice Assistant to activate Siri or Google Now. Then press the Phone button on the speaker to activate Siri or Google Now. Please make sure the Siri or Google Now is enabled on your phone.
Answered by: Nick F
Date published: 2018-12-04

Can I get the HK Connect APP for a windows PC? I can link one speaker now on my pc but would like to run two.

Asked by: zaprdave
Hi! The HK Connect app is specifically designed for use with mobile devices, and not with PC's.
Answered by: Nick F
Date published: 2018-12-04

can you link the sabre 35 with the oxyx 4?

Asked by: Douglas S
Hi! No, Onyx studio 4 and Sabre 35 cannot be connected together because the soundbar does not have the Connect+ feature which the Onyx has.
Answered by: Nick F
Date published: 2018-12-04
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