I would choose the BL4000s over the BL6000s as I see the BL6000s more as rear speakers in a surround sound setup as opposed to pure listening stereo speakers - even at lower volumes. The BL6000s might be ok to begin with but I don’t think they’ll satisfy you in the long term. Just my opinion though of course. Enjoy whichever you choose. Simon.

Sorry forgot to say that the BL8000s would also be a fantastic choice. I owned a pair for several years and was extremely happy their performance. The BL4000s have a more warmer tone which many like. The BL8000s are the higher performers but not quite as warm. Really depends what sound you are drawn to so a listening test where possible is best. Cheers.

Hi

The Beolab 6000 in my opinion is a great speaker, I think it would make an upgrade to a pair of Play 3’s. And in looks, it will be a very big upgrade.

I own both 4000, 6000 and 8000, they all have different sounds, but I like all of them.

/Allan

The Beolab 6000 is a pretty speaker.  It is *not* a great speaker.  But neither is a Sonos Play:3.

As a Sonos household, your comparison must be 6000's versus a "trade-up" of two Play:3's for a 15% discount on two Sonos Five's, instead of the Sonos Port that you must buy to drive the 6000's. (Sonos no longer brick the old speakers, so you'd pay $850 (USA) to add a new zone of Five's, or $382 on top of the price of the 6000's to add a Port.  The only bug would be that Five's require you to update to Sonos S2 if you haven't already, whereas the Port for your 6000's does not require that update.)  The Five's actually sound decent, and IMO, will have better midrange & bass than the 6000's -- especially if you Sonos "TruePlay" them for your room, which you can't do with the Port and 6000's.  (That Darko fellow will soon do a review of the Sonos Five, if you put any credence in that sort of thing.)

OK, OK, OK, sure: In fact the 6000 is a *beautiful* speaker, so you should buy 6000's regardless of whether they sound worse than Sonos Five's.  If you are in the EU, 6000's are reasonably priced (there may even be plenty in mint condition).  As an American, I wouldn't consider it because even used are stupidly expensive here.  But in the EU it's de rigueur that you buy the 6000's, whether or not you own a Kay Bojesen monkey,  They will make you smile every time you walk into the room, which I guarantee your Play:3's do not.  The only question is if you will smile more from the sound of the Five's.  But background music?  Nah.