Adapt Plus


Wireless HD Receiver

$199.95199.95 each
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Turns your stereo or home theater into a wireless music streaming system

The Harman Kardon Omni Adapt+ is a wireless, HD music receiver. It upgrades your existing stereo and home theater equipment to become a wireless HD music system. It also adds access to music services such as Spotify Connect and Chromecast built-in. Simple to set up and easy to operate, the Adapt+ is the fastest way to play your music wireless anywhere in your home with one speaker or many!


General Specifications

Frequency response 20Hz~20kHz -3dB
Signal-to-noise ratio >85dB
Weight 285g


Dimensions (W x D x H) 143mm x 100mm x 35mm

Control and Connection Specifications

Input connections Bluetooth®, Aux-in, Wi-Fi, Optical
Bluetooth® transmitter modulation GFSK, π/4 DQPSK, 8DPSK
5G Wi-Fi modulation OFDM, BPSK, QPSK, 16QAM, 64QAM, 256QAM
2.4G Wi-Fi modulation OFDM, DSSS, DBPSK, DQPSK, CCK, 16QAM, 64QAM

Antenna Output

2.4G Wi-Fi transmitter frequency range 2412 – 2472MHz (2.4GHz ISM Band, USA 11 Channels, Europe and others 13 Channels)
5G Wi-Fi transmitter frequency range 5.15~5.35GHz, 5.470~5.725GHz, 5.725~5.825GHz
Bluetooth® transmitter frequency range 2402 – 2480MHz

Powering Output

Output voltage >1Vrms
Bluetooth® transmitter power <4dBm
5G Wi-Fi transmitter power <20dBm (EIRP)
2.4G Wi-Fi transmitter power <20dBm (EIRP)

Powering Interface

Power supply 5VDC, 2.3A
Power consumption in sleep mode <3.0 Watts
Click here for a complete list of all specs for this product

Spec Sheet (EN)

English 615 KB
  • Omni Adapt+ Wireless HD Stereo Receiver
  • Omni Adapt+ Quick-start guide
  • USB power supply
  • Regional power pin(s)
  • TRS stereo AUX cable
  • RCA phono cable
  • Safety & Warranty Sheet
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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
Adapt+ is rated 3.0 out of 5 by 2.
Rated 5 out of 5 by from Compact design and do what its supposed to do. I received my adapt + two days ago and I set it up using the HK Controller app. At first I wasn't getting any sound from the main source which is the Harman Kardon go + play II (ipod & iphone) portable speaker. I called technical support and they helped me. Now I play the same song on both the Harman Kardon go + play II (ipod & iphone) portable speaker and Omni 50+. I'm recommending my friends in Europe to get one too. Well done HK!
Date published: 2018-12-14
Rated 1 out of 5 by from Does not work with non Android iOS devices I bought this to connect a Yamaha DRX 730 Receiver and a couple of Sony Walkman NWZ-A25, NWZ-A45 and NWZ-F806, and only this last one works ok, tried Moto G4 plus too and works fine, it seems the Omni Adapt + does not work with non Android based devices, can not pair. And the support guys have no idea how to fix or even answer this question.
Date published: 2018-07-31
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Can this be used to broadcast analog stereo components (either directly or through a receiver) to my Google Home speakers? I had picked one up, but it wouldn't connect to my network and seemed to want an existing network of Omni speakers

Asked by: Didjit
Hi there, the HK Adapt + is used the same as a bluetooth receiver, you'll need to set it up first through the HK Controller app. Once it's set up, you can connect this to a non-omni (or non bluetooth) speaker using the aux cable so it'll get the music from your phone, go to the adapt,then it'll send the signal to your speakers to play sound. If you need more details on how to use it, please submit a case request and so we can assist you: https://www.harmankardon.com/support-contact.html
Answered by: Mario at Customer Service
Date published: 2019-05-26

Hi, Can I connect SB20 soundbar to Adapt+ &amp; use it to sync music with my Omni 20+ speakers.

Asked by: harshal
Great question! Yes, you can connect your HK SB20 to your Adapt Plus via Bluetooth, optical, or auxiliary then set it up on the HK Controller App. Once you have your Adapt Plus set up on the app, you should be able to stream the same music across your Omni speakers and your soundbar. If you need help with the set up, you can reach us through here: https://www.harmankardon.com/support-contact.html
Answered by: Mario at Customer Service
Date published: 2019-04-30

how can i transfer tv and movie audio signal to omni+ using adapt+

Asked by: Sijoon
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: 2019-03-29

What's the difference between the citation adapt and the adapt + ?

Asked by: Nupe04
Correction: The Citation Adapt is for the Citation Series while the Adapt+ is for the Omni+ Series.
Answered by: Rhae C
Date published: 2018-12-31

Can I configure 5.1 channel audio with saber sb35, omni adapt +, omni10 (not plus)?

Asked by: jeahan
Thank you for your question. No you cannot made a 5.1 system from your equipment listed. If you need further assistance, please submit a case request at &nbsp;https://www.harmanaudio.com/support-contact.html and the Customer Service Team will be more than happy to assist you.
Answered by: remy b
Date published: 2018-12-12

I have a harman kardon go + play II (iPod and IPhone) portable speaker and the Omni 50 + which I really love. &nbsp;What the difference between the adapt and adapt + because I want to buy one. Will I be able to play the same song on both speakers?

Asked by: Boakye81
Hello! Thanks for supporting our products! The main difference between the two devices is that the Adapt + is Chromecast ready, meaning you can use it to cast any songs from your device to another. It will play the same song once you have linked your speakers using the Harman Kardon app.
Answered by: Nick F
Date published: 2018-12-13

Why bluetooth only works on Android based devices? I can not connect Sony Walkman NWZ A25 and NWZ A45 (with Sony OS), only works with a NWZ F806 (with Android 4.1) and Moto G4 plus (Android 7)

Asked by: Eshmx
Thank you for reaching out to us with your query. We would like to work with you directly since we have not tested our devices with the Sony OS on their devices to verify compatibility.&nbsp;We&nbsp;can see that you've already submitted a case with us and is already being handled by one of our Customer Service Representatives. Please reply to their communication if you need anything additional.
Answered by: Steve S
Date published: 2018-07-15

can be used to receive (from a media player bluetooth enabled) and transmit (to a bluetooth headphones) device?

Asked by: Lalo Bot
Hi! The Adapt+ is not a Bluetooth transmitter, you have to connect the&nbsp;speaker&nbsp;to the Aux input at the back of the Adapt+.
Answered by: Nick F
Date published: 2018-10-26
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