Harman/Kardon

Harman Kardon Onyx Studio 4

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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.

Item# HKOS4WHTAM

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

Dimensions

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

Battery

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.

Harman Kardon does not service warranty claims for 3rd party products sold on the site.
You will need to need to reach out the manufacturer directly.

Call us: 1.800.422.8027

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  • Technical help
  • Parts and accessories
Harman Kardon Onyx Studio 4 is rated 4.3 out of 5 by 103.
Rated 5 out of 5 by from Super loud and DEEP BASS The speaker can get extremely loud. Like really loud. The bass is very clean yet deep, and it keeps up with the rest of the audio, it does not overdo the highs or mids. Utter beauty
Date published: 2018-04-24
Rated 5 out of 5 by from Great music A friend of mine came to visit from America and brought his with him The sound quality is amazing I bought one straight away and intend to take it on holiday with me Plus I have to say that the people I dealt with at Harmon were really helpful Nothing was to much trouble First class product and first class service Well done
Date published: 2018-04-17
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
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The volume controls don't seem to work.

Asked by: MichaelB
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: Mario at Customer Service
Date published: 2018-05-20

I currently have a HK3 speaker, I was wondering if I can connect the HK3 To the HK4 speakers together ? Through connect or can you use an auxiliary cable ? Not sure 

Asked by: Alex S
Hello! Unfortunately the Onyx studio 4 would not be able to connect to the Onyx Studio 3 since the Onyx Studio 4 has the HK Connect + that allows you to connect to 100+ speakers with the same feature while the Onyx Studio 3 has Dual Sound which is a different technology from the HK Connect +.
Answered by: Mario at Customer Service
Date published: 2018-05-20

How can I use the speaker for my tv sound?

Asked by: Chuck Y
The Onyx Studio 4 uses auxiliary input and Bluetooth for connections. If your TV has an auxiliary input and/or Bluetooth, you should be able to connect the speaker to it using either connections.
Answered by: Zoe at Customer Service
Date published: 2018-05-18

Whenever I set the volume on or above 60% when connected to mains, the passive radiator on the back wobbles dangerously (it fires at an angle) and then cuts out the bass. Is that normal or should I get a replacement?

Asked by: GotumJee
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: Steve S
Date published: 2018-05-17

Can I buy two Onyx Studeo 4 speakers and play them in stereo, sending separate Left and Right signals to speakers?

Asked by: Elfinjon
Yes you can set two Onyx Studio 4 on stereo mode by downloading the HK Connect App.
Answered by: Dan E
Date published: 2018-05-16

How close, in proximity, do the speakers need to be to one another to link them together? I recently purchased an Onyx studio 4 speaker, and am interested in purchasing another.

Asked by: mikepike
The HK Connect + be near to the Master Speaker where the source is paired to for faster connection, The further away it is from the master,the longer it takes to connect it and play the music. The distance can be as far as approximately 40ft with devices in clear view and no obstacles blocking the devices.
Answered by: Minete
Date published: 2018-05-16

Please is the front cover removable on Onyx studio 4? just like in the previous versions where you can see the the drivers.

Asked by: davidoc
Hi. Yes, the front cover, or grill, does come off. You must grab the edge of the grill frame with your nails and pull outwards. You need strong nails, or some kind of thin tool that can be inserted into the groove, since the force needed to pull it away is considerable.
Answered by: Bo HARMAN
Date published: 2018-05-16

Can I connect my Onyx Studio 4 to my Onyx Studio 3

Asked by: Supreme123
Hello! Unfortunately the Onyx studio 4 would not be able to connect to the Onyx Studio 3 since the Onyx Studio 4 has the HK Connect + that allows you to connect to 100+ speakers with the same feature while the Onyx Studio 3 has Dual Sound which is a different technology from the HK Connect +.
Answered by: Mario at Customer Service
Date published: 2018-05-14
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