Bang & Olufsen Beoplay A9 MK 4,4th GENERATION



The A9 MK4 also introduces Google Voice Assistant to the spec list, which not only allows you to control the A9 by voice command, but your Google-enabled smart home functionality as well. Other improvements include a reworked streaming engine, ensuring better results when using Chromecast etc.; improved Wi-Fi connectivity; multi-room platform compatibility with Apple AirPlay 2; and B&O’s Adaptive Room Compensation.

Adaptive Room Compensation uses a combination of built-in amplification and digital sound processing to evaluate the environment the speaker is in – room size, furniture placement etc. – and adjusts output accordingly, delivering the optimal aural experience for that particular space.


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One-point music system and contemporary design icon with powerful sound and customizable design.

A formula for life

Here in the words of Øivind Alexander Slaatto, the designer who created Beoplay A9:

“With the A9 I wanted to make a timeless classic something which is beautiful from all angles in all times. A9 was inspired by sound and by music. The shape is a circle and the reason why I choose a circle is because the sound travels in circles. The A9 is made out of very few elements which are used as much as possible and crafted in the best materials; high quality wood high quality plastics high quality aluminium and a very good fabric.”

Connect Beoplay A9 into your home speaker system

Play different music in different rooms – or let one song play on all your speakers throughout your home. Beoplay A9 is a multiroom speaker that seamlessly supports both Chromecast built-in, AirPlay 2, Bluetooth and connects with any speakers supporting these formats.

Fill any space with iconic sound

Beoplay A9 fills any room with detailed Bang & Olufsen Signature Sound thanks to its powerful 480-watt digital amplifier system. Built-in room adaptation adjusts the sound perfectly to its surroundings, so you can experience your music the way the artists intended.

Like a piece of furniture design

The days of hiding your stereo are over. We designed Beoplay A9 like a beautiful piece of furniture — with carefully selected Materials and uncompromising attention to detail. The result is an iconic piece of music design you can put on display anywhere.

B&O X Kvadrat

The gorgeous wool-blend speaker covers for Beoplay A9 are made in collaboration with renowned textile brand, Kvadrat. The Danish design company has produced a series of covers in a wide variety of colours that will make your speaker pop or blend in with your home decor.

Get more done with just your voice

Beoplay A9 with the Google Assistant. You can easily enjoy music at home just with your voice; you can play your favorite music, control volume and find information about the song that you are listening to, hands-free. 

You can also plan your day, set alarms and control smart devices around your home – just by using your voice.

  • The Google Assistant is available only in specific countries and languages.
  • Google is a trademark of Google LLC
Many ways to place your music

Designed to change with your own lifestyle. You are free to place Beoplay A9 in a corner, out in a room or hang it on a wall with the optional wall bracket. Naturally, the built-in room adaption switch ensures that your speaker always sounds as good as it looks.

  • Front cover
  • 3 x wooden legs 
  • Mains cable
  • Quick start guide