Advanced soundbar with Bluetooth and powerful wireless subwoofer

£329.99329.99 per system
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The soundbar that ties it all together

The Harman Kardon SB 20 soundbar provides theater-quality sound for all of your entertainment components, audio or video. Easily connect to your TV, smartphone, tablet or gaming console with HDMI (ARC), optical or Bluetooth. The wireless subwoofer delivers powerful bass and brings the future of home entertainment to life. Enjoy your favorite movies, music, sports and games in a classic, compact design that complements your home decor, integrating seamlessly with even the most stylish, slim-profile TV. This powerful soundbar is the elegant solution to complete any system.


General Specifications

Frequency response 45Hz – 20kHz
Maximum SPL 100dB
2-way, dual driver left and right speaker modules Yes
Harman Display Surround mode for a complete virtual surround sound experience without extra speakers or wires Yes

Speaker Specifications

Total output 300W max
Wireless active subwoofer with 165mm (6.5”) driver Yes
Dolby® Digital Decoding Yes
2-channel stereo mode Yes


4 x 55mm (2.25”) full range drivers Yes
2 x 32mm (1.25”) dome tweeter Yes

Control and Connection Specifications

1 HDMI output with Audio Return Channel (ARC) Yes
Harman volume Yes
Bluetooth® connectivity Yes
1 stereo analog-audio input Yes
1 optical digital input Yes
Click here for a complete list of all specs for this product

Spec Sheet (EN)

573 KB
  • 1 x Harman Kardon SB 20 soundbar
  • 1 x Wireless subwoofer
  • 1 x Remote control
  • 1 x Remote control battery
  • 1 x Wall Mount accessory for soundbar
  • 1 x Optical digital audio cable.
  • 1 x HDMI cable
  • 1 x Main Unit IEC cable
  • 1 x Subwoofer IEC cable
  • 1 x Quick-start guide
  • 1 x Warranty statement
  • 1 x Safety sheet
HK SB20 is rated 4.5 out of 5 by 2.
Rated 5 out of 5 by from Best Soundbar I've ever owned Recently, I replaced my old speakers with this soundbar. And I had no regrets. This sound bar is simply exceptional and really impressive sounding. It played almost all genres of songs really good. It's warm bass, powerful mids, and crystal clear highs handles the job easily. When I watch HD concerts I can't help but pump the volume up because the sound is just so real and immersive; it's like being there in the concert hall. And with the movies? It's bass is really tight and punchy... I can say for myself, as a cinema goer, that the sound coming from this speakers is close to that in movie theatres and sometimes I think it is even better; clear dialogue, powerful explosions, I can even pinpoint where the tiny sounds like bullets ricocheting are. Although, it lacks simple features like indicators for tuning the bass with the remote.
Date published: 2017-07-01
Rated 4 out of 5 by from My favorite brand . Sounds very good, good price , Speak with sound. My first choice is to think harman.
Date published: 2017-08-06
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What do you mean, the Harman Kardon SB20 does not support 4K.

Asked by: Pippo
Hi Thank for you question Yes the SB20 has HDMI 1.4 ports these do not support the sufficent speed to support 4K tv signals. you need a soundbar which has HDMI 2.0 and later to support the speed which are needed to support 4K tv signals. if you have other questions regarding our products please feel welcome to contact our help-desk.
Answered by: Mogens
Date published: 2017-08-31

Hi, just bought SB20, does the soundbar support 4K TV?

Asked by: Liro N
Can you please help me understand what do you mean by the SB 20 does not support 4k TV. What us not supported?I bought the SB 20 and a LG4K TV but not yet installed. Thanks
Answered by: Pippo
Date published: 2017-08-31

How do I stop the soundbar going to sleep when I've pause a programme? This is proving to be very frustrating.

Asked by: Christal
Hello! Thank you for your message. We are sorry to hear you are not satisfied with the product. Because of EuP-regulations, the unit must enter Standby after 10 minutes to save power, when no sound is detected. Your HK component has a fixed threshold for this level.
Answered by: Marius S
Date published: 2017-08-24

Hi There I bought the HK SB20 and can't seem to connect any other device than my phone to Bluetooth, which is the first thing I connected. The system is not discoverable to any other devices even if my phone's Bluetooth is switched off.

Asked by: KingJuan
To make the SB20 discoverable with a new source device, simply press and hold the Bluetooth button for 3 seconds while the unit is on. Make sure your source device is in search mode and it should recognize the SB20 within a few seconds. If this doesn't help, hold down the Volume+ and Surround buttons for more than 5 seconds to reset the SB20. The SB20 will automatically reboot itself, after it has been reset. Restart the pairing process. If none of these things work, 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: Joe G at Customer Service
Date published: 2017-08-03

Hello as a 24yr old, i want to invest in a future proof fullrange soundbar, Does this one have Bluetooth 5.0, support chromecast and will I be able to connect it to other wireless speaker in stereo?

Asked by: Marc Arthor
The SB250 has Bluetooth version of 2.1 ER and compatible with most Bluetooth-enabled devices. It's not chromecast-buit in and cannot be connected to other wireless speaker.
Answered by: Joe G at Customer Service
Date published: 2017-06-23

We have had an accident and made a small hole in the speaker cover fabric on the soundbar. Is it possible to replace the speaker fabric? 

Asked by: Giles
Hi Giles, Sorry to hear about the fabric being damaged. Yes, the whole fabric can be swopped out with a new one. Please contact our service station below and ask for the fabric part. If you cannot do it yourself, then they are able to help you with replacing the fabric but will cost a service repair fee. Here is the information: Fullers Electronic Services Ltd Spares Dept: 01728 746500 (Note: This line is shut between 12pm-1pm) Open: Monday-Thursday 9.00-17.30 GMT Friday 9.00-16.30 If you need further assistance, please contact us at customer.service@harman.com
Answered by: Danny HARMAN
Date published: 2017-07-17

Where can we get a complete list of the functionality of this device? The QSG is near useless. What is "Harmon Sound" for example? Other posts have managed to obtain information about remote control learning and device reset... What else is hidden?

Asked by: FrustratedCustomer
Hi, Thank you for your question and concern. The Quick Start Guide covers all features of what the soundbar can do, and to know what a specific feature can do, then in our Spec sheet found on our website you can read about the features. To explain what Harman Sound is, please see below: No more loud commercials or other sudden volume changes – Harman Volume automatically keeps audio changes smooth and consistent so you can pay attention to your entertainment, not your remote. I will forward your feedback to our engineering department. If you need more assistance or help, please contact us at customer.service@harman.com
Answered by: Danny HARMAN
Date published: 2017-05-26

Hi how can you turn on dolby digital i can only access normal settings on my tv turning on digital results in loss of sound my connection is via hdmi to hdmi arc on tv .

Asked by: Manolos
Hi Manalos, The Soundbar will detect the source signal and if that is Dolby digital content, then it will play source in the Soundbar. If you have the possibility to change the settings to PCM or Bitstream (depending on what it is set to now), then that might solve the issue. The last thing would be to try the Soundbar on a different TV and see how the results will be when testing Dolby Digital. If you seek further assistance or help, please contact our customer service at customer.service@harman.com
Answered by: Danny HARMAN
Date published: 2017-05-23
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