Hk Onyx Studio 2 User Manual

Why does my new Harman Kardon Onyx Studio 2 being connected for the first time and charge for the first time doesn't anymore power on and just automatically shuts off every time i press the power button.

Is this a good question?


Please I need to know what to do. My onyx studio only play when AC is plugged in and goes off immediately power is out. Please I really need a solution so I can walk outside with my Harman Kardon and enjoy it more than being indoor always . Vwr radio controlled clock thermometer user manual.

  1. Looking for a manual? All of our product manuals for current products are located on the product purchase page within Harman Kardon website.
  2. The Harman Kardon Onyx Studio 2 is a portable Bluetooth speaker manufactured by Harman Kardon in 2015, identified by model number TR00236B. Harman Kardon Onyx Studio 2.

Crafted with high-end materials, the Harman Kardon Onyx Studio 3 is a full-featured, portable Bluetooth speaker that delivers powerful audio with the iconic Harman Kardon design.

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I am facing exactly the same issue. I changed the battery and use another AC. Without any success.

Mine plays then shuts down also after maybe 15 minutes


Add a premium feel and portability with the Harman Kardon Onyx Studio 4 bluetooth speaker. This has a unique design and speaker construction that is definitely different from current market bluetooth speakers available today. Feel the bass easily conquers a room with its dual passive radiators speaker and enjoy up to 8 hours of battery life out of a single charge.



60 Watts of Power

Hk onyx studio 2 manualThe 60 Watts RMS power is unbeatable especially if it is portable and powered by battteries. Even on a noisy environment it will still be on top and it will be heard. While indoors it can easily fill up your room with sound as if you have a whole setup of speakers.

Dual Passive Radiator Speakers

This speaker allows for more bass in a small portable size. It will easily produce bass even on max volumes.

50Hz to 20KHz Response

The wider and higher the response rate, the more accurate and premium the sound output would be. The Harman Kardon Onyx Studio 4 delivers crisp highs, mids and lows on a small package.

Built-in Microphone

The built-in microphone allows you to make calls and the Harman Kardon speakers acts as a super loudspeaker. This is great if you need a conference type of conversation with your family or friends.

3,000mah Battery

The Onyx Studio 4 is rechargeable and will last up to 8 hours of music playback. Perfect for portability and it will last a day of regular use.

Technical Specifications

Harman Kardon
Onyx Studio 4
Model Code
Special Features
Dual Passive Radiator Speakers
Total Output Power
60 Watts RMS
Frequency Response
50 Hz – 20 KHz
Signal to Noise Ratio
Wireless Connectivity
Speaker Phone
With built-in microphone
  • Charging Input
Battery Capacity
3000 mah
Battery Type
Battery Life
Up to 8 hours of playback
Charging Time
Up to 5 hours
Dimensions (HxWxD)
10.2 x 10.9 x 6.3 Inches
4.5 Pounds
Inside the Box
  • Power Adapter
  • USB Cable


  • Incredible sound on a small portable speaker
  • Excellent bass output


  • Pricey
  • Odd design that may tip or knocked over
  • Charging time may take a while especially when using low ampere chargers

Would I recommend the Harman Kardon Onyx Studio 4?

For the sound quality in a small package it will be a definitely good buy. And if you like odd looking speakers and you like to be different then the Onyx Studio 4 is for you.

Hk Onyx Studio 2 Manual