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

Bluetooth version: 4.2 Yes
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
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)
Bluetooth transmitter power 0 - 9dBm
Bluetooth transmitter frequency range 2402MHz - 2480MHz
Bluetooth transmitter modulation GFSK, π/4 DQPSK, 8DPSK
Weight: 2061g Yes


Dimension (H x W x D): 260mm x 278mm x 159.5mm Yes
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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

The latest owner's manuals, quick start guides, and documents.

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.

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Harman Kardon Onyx Studio 4 is rated 5.0 out of 5 by 1.
Rated 5 out of 5 by from Great home bluetooth speaker I love the sound quality of the Onyx series. And the Studio 4 is true to that legacy. Deep base, but the highs and mids are still very crisp and clear. The Studio 4's now have stereo or party mode when paired with another Studio 4. The Studio 4’s really fill a room. The new app is pretty good too. It doesn’t have and EQ, but it controls the stereo and party mode nicely. The Battery life is better too. For in home use or on a patio they are great. But the downside is that they are a little larger than other Bluetooth speakers, not water resistant and charges with a larger power brick and not USB. So they are less travel friendly. With the new HK connect+ features and longer battery life the Studio 4 is a solid choice in the market of higher end home type portable Bluetooth speakers. If I were looking for a beach or camping speaker I'd probably look elsewhere. Or I needed just one speaker to serve all purposes, I'd probably look elsewhere. As an added note, the Studio 4 does have the 3.5mm input jack in the back. And they not backwards compatible with the Studio 3 or the Onyx Mini for wireless connectivity.
Date published: 2017-07-15
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Hi, when I connect one Onyx 4 to my computer via Bluetooth, how can I pair another Onyx 4 in stereo mode? On my phone, I can use the HK+ Connect app, how about other non-cellphone devices?

Asked by: Question
Unfortunately, without the HK CONNECT app there is no way to pair multiple ONYX STUDIO 4 together for stereo mode, if the source is a computer as of the moment.
Answered by: Drin at Customer Service
Date published: 2017-07-19

Can a microphone be plugged into the aux input?

Asked by: Jennym
No, the aux port on an ONYX STUDIO 4 is only meant for source such as MP3 player, Smartphone, or Tablet. Besides, ONYX STUDIO 4 already has built in microphone.
Answered by: Drin at Customer Service
Date published: 2017-07-18

Does the Onyx Studio 4 have a 3.5mm audio aux input? Thanks.

Asked by: Yaguang
Yes, the ONYX STUDIO 4 has a 3.5mm audio aux input.
Answered by: Joe G at Customer Service
Date published: 2017-07-18

How do I connect the HK speaker to my iPhone to play my Sirius radio?

Asked by: lorie
First, put the ONYX STUDIO 4 into pairing mode by pressing the Bluetooth button until it's blinking blue led light. While on pairing mode, you just have to enable the Bluetooth of your IPHONE then pair it with the speaker. Once paired, you'll be able to play SIRIUS RADIO on the speaker.
Answered by: Drin at Customer Service
Date published: 2017-07-18

Can 2 onyx 4 be paired and be served as stereo mode?

Asked by: JohnPAPA
Yes you can pair 2 ONYX STUDIO 4 together as stereo mode. Just simply connect it to HK app. on your phone or tablet and set it as stereo mode (left and right).
Answered by: Erik at Customer Service
Date published: 2017-07-18

Can two of these speakers be used in STEREO setup via BLUETOOTH?

Asked by: edom
Yes. Two HK Onyx Studio 4 speakers can be paired for party mode and stereo mode playback when paired using the HK Connect app.
Answered by: Joe G at Customer Service
Date published: 2017-07-19

Does this have aux input? I read in a post that it doesn't and it's Bluetooth only. Please confirm.

Asked by: Rama
Yes. The ONYX STUDIO 4 has a 3.5mm auxiliary mini-jack input.
Answered by: Joe G at Customer Service
Date published: 2017-07-14

When was the 4 released?

Asked by: Nichetcher
The ONYX STUDIO 4 was released first week of July.
Answered by: Joe G at Customer Service
Date published: 2017-07-14
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