Onyx Studio 3 Recertified


Portable Bluetooth Speaker

£129.99129.99 each £199.99
Buy 2 or more and Get 10% OFF (Details)
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A beautiful and powerful audio performance

Crafted with high-end materials, the Harman Kardon Onyx Studio 3 is a full-featured, portable Bluetooth speaker that delivers powerful audio with the iconic Harman Kardon design. You can enjoy music up to 5 hours of playtime thanks to the rechargeable battery and wirelessly connect two Harman Kardon Wireless Dual Sound enabled speakers together to elevate your music listening experience. Users will be able to make clear phone calls with the speaker from its built-in microphone which is powered by noise and echo cancelling technology. The exquisite design will enhance the style and compliment any room.


General Specifications

Bluetooth® transmitter modulation GFSK,π /4 DQPSK, 8DPSK
Rated power 4x15W(AC mode); 4x7.5W(Battery mode)
Battery charge time 5hours
Bluetooth transmitter frequency range 2402MHz - 2480MHz
Signal-to-Noise Ratio 80dB A-weighted
Bluetooth version 4.1
Battery type 3.7V/2600mAh Lithium-ion
Power supply 19V/2A
Music playing time up to 5hours (Varies by volume level and music content)
Bluetooth transmitter power 0 - 9dBm
Support A2DP 1.3 AVRCP 1.5 HFP 1.6
Weight (g) 2071g

Audio Specifications

Frequency Response 50Hz-20kHz(-6dB)
Transducers Woofer 2 x 75mm, Tweeter 2 x 20mm


Dimensions (H x W x D) in (mm) 278.0 x 162.8 x 258.0
Click here for a complete list of all specs for this product

Spec Sheet (EN)

1 MB
  • 1x Harman Kardon Onyx Studio 3
  • 1x Power adaptor
  • 1x Quick start guide
  • 1x Safety sheet
  • 1x Warranty card
Onyx Studio 3 is rated 4.5 out of 5 by 110.
Rated 5 out of 5 by from FABULOUS! Absolutely delighted with the sound, style and operation. This is a superb product that I would recommend to anyone, whether enjoying classical or rock music. It performed brilliantly at a bar-b-que at least 30m from the house and the quality of sound was second to none.
Date published: 2017-07-10
Rated 5 out of 5 by from Small but incredibly powerful Do not be put off by the size of this speaker, this thing has such great power! Bought one speaker initially and bought another one a week later because of great it was. The bass is incredible and vocals are very clear. One very happy customer!
Date published: 2017-07-02
Rated 5 out of 5 by from it is truely a Beast!!!!!! bought a pair of Onyx Studio 3 (black), the sound is absolutely incredible.......i would say it is a Beast!!!
Date published: 2017-07-01
Rated 5 out of 5 by from Exellente Sound. My wife purchased 2 of this speakers and the sound is amazing!!! This had been the greatest gift i ever receive for father's day!
Date published: 2017-06-19
Rated 5 out of 5 by from Clarity that you have never heard before! Purchased this today; tested it across many different genres and instrumental platforms; I can hear with awesome clarity not just the vocals but I can hear instruments I never heard before; listening pleasure is probably the best I've heard for a portable Bluetooth speaker; frequency range and noise to sound ratio is equally awesome; I confess I love it! 10/10
Date published: 2017-06-12
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Can you pair the ONIX STUDIO 2 to a ONYX STUDIO 3 ?

Asked by: Omar
No. ONYX STUDIO 3 is only capable of connecting to the same model, GO+PLAY and ONYX MINI but is only limited to 2 speakers.
Answered by: Drin at Customer Service
Date published: 2017-08-14

My Onyx will not connect to my Iphone anymore. It says connected but does not make the sound when connecting and does not play. Power is on, volume is up. I have forgotten device and reconnected. I can play on other bluetooth speakers. Any ideas?

Asked by: MarkMcGowan
I'm sorry to hear that you are having issues with the ONYX STUDIO 3. Please perform a reset by following these steps. - Press and hold the Phone and VOL + button simultaneously. - After 5 seconds, the unit powers Off, and is now reset. If this doesn't help, please submit a case at www.harmankardon.com/support-contact.html and the Customer Service Team will be more than happy to further assist you.
Answered by: Drin at Customer Service
Date published: 2017-08-14

With Mac OS X, when I select the Onyx Studio 3 as the Bluetooth Output and MIC as Input there is no sound output.

Asked by: sean7879879
What you are experiencing is not normal. There are no known compatibility issues reported between the ONYX STUDIO 3 and Mac OS. Clear the Bluetooth Cache of your Mac and reconnect your speaker. It is also possible that when your Mac was updated, it did not include A2DP – this is the standard Bluetooth driver to stream audio wirelessly. If you are still experiencing issues, please submit a case at www.harmankardon.com/support-contact.html and our Customer Service Team will be glad to assist you.
Answered by: Joe G at Customer Service
Date published: 2017-08-11

Which speaker is better in sound quality? Squire 2 or onyx studio 3

Asked by: juanpespinosa
The ONYX STUDIO 3 and ONYX STUDIO 2 have identical drivers and are both rated at 60W. The difference is, if the ONYX STUDIO 3 is running on battery, it will only output half of that rated wattage (half as loud) to save battery. You can only use the full 60W when running with the power cable plugged in. Secondly, the ONYX STUDIO3 offers Wireless Dual Sound. This allows two ONYX STUDIO 3’s to wirelessly connect to each other, or to the GO+PLAY and ONYX MINI, to play music out of them simultaneously.
Answered by: Drin at Customer Service
Date published: 2017-08-15

how do you link two onyx 3 together ?

Asked by: zachary
Follow these steps in initiating the wireless dual sound feature: 1. Pair your device(i.e Phone, Laptop, Etc...) to your Onyx Studio 3. 2. Once the device is paired, switch the other speaker ON. 3. Press and hold the Bluetooth button on the Onyx Studio 3 that is paired with your device for at least 7-10 seconds or until you see the Bluetooth button blink initiating wireless dual pairing mode. 4. Go to the other speaker and perform step 3. 5. You will hear a notification sound if both speakers have been paired together. If you need further assistance, please submit a case at www.harmankardon.com/support-contact.html and the Customer Service team will be more than happy to further assist you.
Answered by: Drin at Customer Service
Date published: 2017-08-07

I have two speakers and would like to buy two more onyx studio 3's. Is there a way to pair all 4 or simultaneously play all 4 off the same device?

Asked by: Mrchiefrocka
The feature that you are referring to is called Wireless dual sound and it's limited to 2 speakers only. The feature that you are looking for is called HK CONNECT+ which is available only in ONYX STUDIO 4.
Answered by: Drin at Customer Service
Date published: 2017-08-07

When i plug in the aux cord to my computer, the bass does not work whatsoever. however, when i play the exact same song on my phone, it works perfectly fine. help?

Asked by: imnotapeopleperson
It seems a problem between the connection of ONYX STUDIO 3 and computer. Most likely caused by the AUX port on your computer. Please contact the computer manufacturer for further assistance.
Answered by: Drin at Customer Service
Date published: 2017-08-16

If you pair two Onyx 3 speakers, do you get true stereo sound (R channel, L Channel) from the speakers? Or is it a monaural (same channel from both speakers) signal?

Asked by: Parker63385
Using the ONYX STUDIO 3's wireless dual sound feature can only play the full signal, which contains both left and right channels in both speakers.
Answered by: Drin at Customer Service
Date published: 2017-08-08
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