Harman Kardon Onyx 3 vs Onyx 2

Harman Kardon is a company that is well known for their quality classy designs. They’ve been on the market for decades, delivering amazing products to audiophiles. Today we’ll have a closer look on two of their wireless portable speakers. If you are an audio junkie, you’ve probably heard about Harman Kardon Onyx series. Today we’ll put together two of their products in a head-to-head comparison to find out their strengths and weaknesses. Without further ado, let’s start the Harman Kardon Onyx 3 vs Onyx 2 battle!

1. Onyx 3

Score 9.2 OUT OF 10
Onyx 3

First we’ll start with Onyx 3. It’s a mighty impressive portable speaker. It sacrifices some of it’s portability in order to get better acoustics, but resulting in a rich and powerful bass. This could be the perfect speaker for family events or similar parties. 

The Harman Kardon Onyx 3 justifies the reputation of the brand in every aspect. It includes Bluetooth 4.1, supporting dual speakers, furthermore it has a range of to up to 30m. As far as design goes, it’s is sleek and classy. It comes in five colors: grey, black, white, navy and burgundy.

Onyx 3The conference call button is moved up with the rest of the buttons, like, volume, Bluetooth and power. All of this results in a clean design, only enhanced by the Harman Kardon logo. You couldn’t expect anything less when it comes to Harman Kardon.

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It measures at 28cm x 17cm x 26cm, so you could say it’s not the most compact and small speaker. That is why the people at Harman Kardon have placed a handle on the rear of the speaker, so that it is easy to carry around. Like we said before, this speaker sacrificed some of its mobility in order to get better acoustics.

When it comes to sound, there are a few speakers that compare to the Onyx 3. Unlike some speakers that have a bass that is too powerful, to a point where it drowns the mids and highs, this speaker has amazing balance. It Delivers the best of both worlds, ensuring an amazing sound, without any distortion, even at max volume.


  • Natural bass, well balanced and rich vocals
  • Produces loud audio, without distortion
  • Great value for the price
  • Great acoustics

  • Battery life should last longer than 2-5 hours

2. Onyx 2

Score 9 OUT OF 10
Onyx 2

Now we’ll have a look at the Onyx 2.This is also a very impressive speaker. It features two 3 inch woofers, two 0.75 inch tweeters, along with two passive radiators, thus ensuring a rich and full sound. Balance is key when it comes to quality audio and rest assured that this speaker does not lack any of it. The music you hear coming out of this speaker is just as the creator intended it to be, powerful and moving.

The Onyx 2 is designed for outdoors use or when you are on the go. It features a built-in lithium-ion battery, which will give you all the mobility you need. The average charge of the battery is 5-6 hours. When it comes to size, the Onyx 2 is small and convenient. However, don’t let its size fool you, it can pack a mean punch.

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The downside of this amazing speakers is the limited battery life and it’s weight. It weights at 7 pounds, so you could say that it’s not very convenient to carry around in a purse. However, this is a fine speaker worth the price. It’ll provide you with great sound and is mobile, making it ideal for summer parties and barbecues.


  • Powerful sound with no distortions even at max volume
  • Built-in rechargeable battery
  • Aux input for wire connection
  • Great design that will fit great to your room decor

  • Does not feature a battery indicator


Now it’s time to sum things up. It is a very close and difficult call to make. Both of the speakers are amazing and offer great value for money. If you are willing to sacrifice portability in order to get better sound quality and acoustics, we suggest you go with the Onyx 3. If you are not willing to make that sacrifice and portability is important for you, than we suggest you go with the Onyx 2.

For more portable speaker comparisons, see also our articles: JBL Xtreme vs BoseMegablast vs Megaboom and JBL Flip 4 vs Charge 3.

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