Harman Kardon Onyx Studio 4


Portable Bluetooth Speaker

$449.95449.95 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)

English 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

1 Year

Products purchased online or from an authorized local retailer and under warranty may qualify for an exchange with a valid receipt.

Purchases made from an unauthorized dealer will not be eligible for exchange.

Call us: 1.800.336.4525

  • Sales and pre-sale assistance
  • Technical help
  • Parts and accessories
Harman Kardon Onyx Studio 4 is rated 4.5 out of 5 by 10.
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
Rated 5 out of 5 by from best portable sound there is I've bought it 2 weeks ago after listening to my friends Onyx2 and fell in love with it. Previously I've owned some smaller portables (Bose Soundlink2 and other) which didn't provide the clarity of sound or the oomph that this one gives just fine. The only down side I could point out is its portability. Yes, you can move it between rooms or take it out to the garden, but taking it to the park or the beach doesn't seem to be the best idea.
Date published: 2017-08-30
Rated 5 out of 5 by from Earlier Onyx Studio Purchased an earlier Onyx Studio at a SPRINT store. As I walked in to the store(approx. 1200 sq ft), music was playing quite loud and I thought that the sound was coming from the store's sound system. The music filled the store with rich bass, not the thump, thump that you commonly hear from this type of speaker. What was even better was that it was on sale due to packaging damage! Should have purchased 2!
Date published: 2017-08-14
Rated 5 out of 5 by from i love it i just received my 4 this week and love it , Ive had a lot of Bluetooth speakers including Onyx Studio 2 this is the best Ive had thus far.
Date published: 2017-08-01
Rated 5 out of 5 by from Best sounding speaker! I purchased this speaker looking for something that would sound great indoors, but also something that would sound great sitting outside around the fire. This speaker has it all! The sound quality is amazing with great highs and amazing lows.
Date published: 2017-07-28
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Is there a way to adjust the volume without tapping the Onyx 4 itself... like from HK Connect app? Also, my Macbook pro has paired with the speaker but can't connect... I've tried the power and vol reset to no avail.

Asked by: mrphilip
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: Ren at Customer Service
Date published: 2017-09-22

Why is Stereo Mode not explained in any of HK's literature for the Onyx Studio 4?  This is a breakthrough for HK that no other Bluetooth devices can claim.  How can I learn more about it?  I want to buy 2 Studio 4's because of this but need to know more. 

Asked by: rain333
Yes. Two HK Onyx Studio 4 speakers can be paired for party mode and stereo mode playback when paired using the HK Connect app. If you wish to know more about this feature, you can call us @ 1-800-422-8027 or submit a case at harmankardon.com/contactus and our Customer Service Team will be glad to assist you.
Answered by: Ren at Customer Service
Date published: 2017-09-10

how do i kbow what product i have?

Asked by: cooly2k1
We would like to work with you directly on your inquiry. 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: Ren at Customer Service
Date published: 2017-09-05

Can you Bluetooth pair studio 2 and studio 4 to play simultaneously? We have 2 studio 4 and a Studio 2 . We can get the 2 to play and then both 4 however we can't seem to get all to play. 

Asked by: Loadedlarry
You cannot connect both the ONYX STUDIO 2 and the ONYX STUDIO 4 together. They are using two different features that allows you to connect two, or more (in the case of ONYX STUDIO 4) together. The ONYX STUDIO 2 uses the feature we call Wireless Dual Sound and the ONYX STUDIO 4 uses HK Connect+ that allows you to connect a hundred of the same model.
Answered by: Ren at Customer Service
Date published: 2017-09-17

can I connect two speakers together so they play from one Bluetooth device and also can I connect them to my tv

Asked by: scaliwag
ONYX STUDIO 4 has a feature called HK Connect+ which can wirelessly connect more than 100 HK Connect+ enabled speakers. Currently, only the ONYX STUDIO 4 has HK Connect+ feature. If your TV can transmit signal via Bluetooth, certainly.
Answered by: Ren at Customer Service
Date published: 2017-09-04

Are the Harman kardon onyx studio 4 feet removable unable to fit into a bag because the feet are to long

Asked by: Annoyedtie77
Yes, it is removable through the screws inside the leg of the Onyx Studio 4.
Answered by: Mark at Customer Service
Date published: 2017-08-31

Can you operate it normally whilst it is charging ? Wondered if you could keep it plugged in and playing, if you were near a power point ?

Asked by: Hmac71
Hi Thank you for your question The Onyx Studio 3 can be operated and will continue to play while it is charging. I would not advise to charge it always since this will shorten the battery life keeping it at full charge all the time. if you have further questions please contact our help-desk.
Answered by: Mogens
Date published: 2017-08-31

Hi I just got the onyx 4 so I could amplify the noise of my onyx 2. I can't figure out how to connect them both to play music. the sales people at sprint said it was easy but it's not connecting. 

Asked by: Tonyyhelp
I also bought two of the onyx studio 2 speakers, as the salesperson said both could be connected simultaneously. it appears it is not possible...
Answered by: arts
Date published: 2017-08-28
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