Harman Kardon Onyx Studio 4

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Additional Information
Providing the perfect balance of great sound and iconic design, the Onyx Studio 4 with its upgraded battery life and premium materials is the epitome of full-featured, room-filling audio.
At a Glance:
  • Wireless Bluetooth Streaming
  • 8 hours of playtime
  • HK Connect+
  • Built-in Microphone Conferencing System
  • Voice Integration
  • Premium Materials
What's in the box:
  • 1 x Harman Kardon Onyx Studio 4
  • 1 x Power adaptor
  • 1 x Quick start guide
  • 1 x Safety sheet
  • 1 x Warranty card
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.
Product Features:
  • Wireless Bluetooth Streaming
    Stream music wirelessly via Bluetooth to enjoy room-filling sound. Connect up to 2 smart devices at the same time and take turns playing music.
  • 8 hours of playtime
    The rechargeable battery supports up to 8 hours of playtime
  • HK Connect+
    Amplify your listening experience by wirelessly connecting more than 100 HK Connect+ enabled speakers.
  • Built-in Microphone Conferencing System
    Noise and echo cancellation enables crystal-clear conferencing.
  • Voice Integration
    Access Siri or Google Now from the speaker with a simple button press. This can be easily configured via the HK Connect App.
  • Premium Materials
    The superior fabric and finishing combines with iconic design to compliment any style.
Manuals & Downloads:
General Specifications:
A2DP 1.3, AVRCP 1.6, HFP 1.6
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
Dimension (H x W x D): 260mm x 278mm x 159.5mm
Control and Connection Specifications:
Bluetooth version: 4.2
Bluetooth transmitter power
0 - 9dBm
Bluetooth transmitter frequency range
2402MHz - 2480MHz
Bluetooth transmitter modulation
Power supply
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)
Harman Kardon Onyx Studio 4 is rated 4.3 out of 5 by 12.
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 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 BASS. BLUE TOOTH. SYNC QUICK AND EASY my friend came across a very used Harman kardon onyx speaker. wow! it is so loud clear great sound. we use it for our christmas parties and new years outside...its all we need ! SO PERFECT! SAVING FOR A NEW ONE. NOT THAT WE NEED IT. I WANT MY OWN LOL SINCERELY, FRANICE de LEON
Date published: 2017-10-29
Rated 5 out of 5 by from Great durable speaker! For a long time I was buying cheap speakers here and there, but my sister and I decided to buy two of these and ITS amazing for when we have parties at our house, track meets, and so much more! 10 out of 10 highly recommend
Date published: 2017-10-10
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 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
Rated 4 out of 5 by from Great sound and style. I bought this a few weeks ago. I love the sound and style. The sound is awesome and provides great bass mixed at the right time. I would give it 5+ star if not for the battery life. It's advertised to last 8 hours, but only able to get 4+ hours depending on volume. If low, I get 5+ hours.
Date published: 2017-07-27
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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i puchased 2 onyx 4s, a i have latency even throught aux . im trying to use this as studio speakers and its bugging me so bad because i love the versatility and sound quality ,im upset only because of the not knowing before purchasing two.please help!

Asked by: Shaq
I have the same problem with 2 new onyx 4, I have connected the jack 3.5 from PC output. I've also used youtube from my phone, but the same latency. If I unpair them, the sound from my PC is OK (on a single item), ... I am not able to have stereo on both :(. Please make the fix public because I think the issue is common.
Answered by: Lucian Zamfira
Date published: 2017-11-16

how do i know the percentage of the battery while im using it? there is no battery led indicator for onyx 4?

Asked by: jokher
Actually there is no battery indicator for our Onyx Series but you may be able to notice that the RED light will blink on the power button if your Onyx Studio 4 is in low battery.
Answered by: Karl Vincent
Date published: 2017-11-15

Can i pair the onyx studio 3 with the studio 4? or do i need two studio 4s

Asked by: mylesjjj
Unfortunately the Onyx Studio 3 and Onyx Studio 4 are not compatible in terms of speaker connectivity because they have different proprietary features. The Onyx Studio 3 has the Dual Wireless feature which lets a maximum of (2) speakers connect together while the Onyx Studio 4, on the other hand, has the HK Connect+ feature, our newest feature that allows up to a hundred devices with the same feature to connect to each other. In this case you will need 2 studio 4's and pair it together.
Answered by: Mario at Customer Service
Date published: 2017-11-15

Using the speaker without the cord only worked a few times. The battery, or using it without the cord seemed to be faulty since we bought it new. What can we do about this?

Asked by: Peggi
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: 2017-11-14

I haven’t been able to find the Ho connect app in the App Store for my iPad pro

Asked by: Davidf1
The HK connect app should be available on both App store and Google store. If you are unable to find it, please check the link below. https://itunes.apple.com/us/app/hk-connect/id1197162597?mt=8
Answered by: Mario at Customer Service
Date published: 2017-11-14

I realize this may sound silly, but is there a way to make it "wired" rather than Bluetooth? I need an external speaker for Skype calls, and do not want too worry about potential bluetooth connection problems.

Asked by: Mineola
Yes you can, The back of the Harman/Kardon Onyx studio 4 has an aux cable that you can use to plug in the wire from the source to the Onyx studio. These are made for the sake of devices which don't have bluetooth access and also acts as a back up plan in case you don't want to use your bluetooth because it consumes more power.
Answered by: Mario at Customer Service
Date published: 2017-11-05

How do I stop the auto-connecting of other bluetooth devices and/or block already connected devices so they cannot auto-connect again? P.s. - Awesome product! I highly recommend It!

Asked by: Shaggy
My wife and I have faced this same issue with various devices. The simplest solution is to turn off the bluetooth on the device(s) you don't want to auto-connect. It's obnoxious, but it works. I've also read that it is safest to leave your bluetooth off on your phone or tablet when it isn't in use for security as well as battery life, so I guess there are side benefits.
Answered by: RobGarcia
Date published: 2017-11-14

Sir If I connect the speaker to a permanent power source and use it with a tv will it affect the battery life. Like it would be charging and discharging continuously at the same time. Will this just ruin the battery life of the speaker?

Asked by: Puneet
Using the power source directly to power the Harman/Kardon Onyx Studio 4 would not ruin the battery life .
Answered by: Mario at Customer Service
Date published: 2017-11-16
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