Hi Joost and welcome here. Costs - that is relative, as you know. You probably have the two masterlinked! The 9000 has an A.aux-in, where you can connect basicly anything, that produces sound…..from a iPhone, another smartphone, a bluetooth device, an Airplay device, a Chromecast dongle (there are many small devices with several options built-in), a B&O compatible device like those that OneRemote make or even a Core. However, you will not have the ease of controlling/changing stations like you are/were used to with the 9000 radio part. So it depends on, what you want to spend and on what you need - do you have a smartphone (could even be an older one) and are you willing to use that etc etc? MM

Thanks. The 2 BeoLab 8000's are connected with the loudspeaker ports, the BeoLab 2000 uses the BeoLink connection. Leaves open the auxiliary port on the BeoSound 9000. Can I connect a bluetooth device like Logitech bluetooth audio adapter to the '9000' via the aux-port and then stream anything from iPhone/iPad? What cable do I need for that, since probably the Logitech device may not have the necessary cable fitting the AUX-port? Even better would be a device I can stream over AirPlay. Any? These solutions have the intelligence in the iPhone/iPad. I believe BeoSound Core has the intelligence in itself, right? The BeoSound Core is connected to the internet, wireless and is managed from an internet connection, the iPhone i.e., right? Are there solutions like that other than Core? I guess the BeoSound 9000 connects with the AUX-connected devices via the A-AUX button on its control panel, correct? How to bring the 'auxiliarised' sound to the BeoLab 2000, since there is no AUX-button on its control stick and neither my Beo4 remote control has anything called AUX. The remote has ATAPE and AV, no idea if that can help.