No need to turn it off - and actually not possible. All signals that enter the BL5 are processed similarly, once upscaled to 24/96.

But don't get confused by that.Get a surround processor of the type that measures in-room acoustics and adjusts accordingly, you can just send the appropriate signals to your various speakers. Make sure the processor makes it possible to send the LFE signal to the BL5s. Some processors output a processed digital signal, you might want to send that to the BL5s. Otherwise, just go with the line-out from the processor to the line-in on the BL5s, and reserve the digital s/pdif in for your two-channel music. (I'm doing that, works a treat.)

Can't you simply replace the BV4 plasma display with the Pioneer plasma but still keep the BeoSystem 3 processor?  I'm pretty sure the BS3 can work with Pioneer displays, including the on/off signal via infrared.  

 -- Paul 

Yes, although it depends on the model. I would personally keep the BeoSystem 3 - it's a very good processor!

I don't suppose you've read about the new sound processor in the BeoSystem 3? It hasn't yet officially been unveiled, but it looks very interesting!

Which processor is that?  Are you referring to a 'new' BS 3? What about the one inside the BV 7 mk III?  How's the processor in that one?

Dario 

Not much information is available at the moment, but it will be soon. My advice would be to hold off on your decision!

You are talking about a new BS3 - but my BS3 is still the "old" one 🤔

And if B&O have done a big modd. on the BS3 its proberly not just a softwear opgrade but a complet new BS3 i would have tog get the new opgrade😕