4th-gen Beoplay A9 upgrades include Google Assistant and AirPlay 2 multi-room
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.