Lab 5 wiring

20 replies

I may be missing something, but when I tried something similar (PL to BL5 from one B&O unit; s/pdif to BL5 from another), I did not get PL control of tone and balance on the BL5s. In fact, the setup didn't "understand" what I was trying to do.

I read your answer as dealing with output from the BeoSound 9000 alone - while the OP wants to use PL from BV7 and s/pdif from BS9000. 

More than willing to stand corrected on this one! 

I think we've gotten a little turned around here with people answering 2 different questions.  So, we go back to the OP first:

 

Thanks for the hand-off Trip.  Here we go back ot the OP question.

BS-9000 to BV-7 via ML.

BS-9000 to BL-5 via copper S/PDIF, and the speakers daisy chained.

BV-7 to BL-5 via fully wired PL.

NO 'crossover/synch' cable needed.

In this case the BeoLab 5's "see" the volume and source information coming down the data/display leads in the PL cable, for example "CD 3 Vol 42"  In just the way that a BeoLab Penta used the data to drive its display.  There is no need for the synch cable because the volume data is sent as a discreet data set, not just as  'up/down'.  The 5's know that volume is set at '42'.  Similarly, when (and only when) they see 'CD' to they check the digital input, and then switch over.  There is in fact no tone control on the digital input. 

In a B&O 'audio only' setup, you would make PL and S/PDIF connections to the BR-2/BS-9000; you ought to also be able to do the S/PDIF connection to BG-CD 4500/5500/6500/7000, with PL to the BeoMaster.  Must always use fully wired PL.

 The 'synch' cable is only used with a non B&O audio source.  In this case a Beo4/5 issues vulume up/down commands and the 2 BL 5's negotiate with each other as to what 'number they should be on.

 Soundproof, what exact setup were you trying?

 

Russ

Off to buy some cable.

 

Thank you all.🙂 

Okay guys here is some questions for you..!

Have I understood it correct..?

1. st Question:

I have tried this on the Beolab 5:

The PL to Beomaster4500 - I have full tone control etc. option0

The analogue line-in from a non-B&O CD player - option1 and sync cable is in - No tone controls other than volume up/down and balance R/L

s/pdif line-in from and non-B&O CD player - option1 and sync cable is in - No tone control other than volume up/down and balance R/L

I have tried to turn the volume down to silent on both speakers and then used A.SETUP then GO and the S.STORE and go, but have can I make sure that the speaker is >0< left/right balance???

2. nd question.

With s/pdif signal from a non-B&O player I have no tone control but what If I used s/pdif on a BS9000 would this give me tone control?

I don't have any B&O Audio player with s/pdif now, but want to buy a BS9000 again; does all BS9000 mk1-3 have s/pdif? I hope I will end up with an mk3, because it also has the PIN code option.

Thanks

No, all the time the BeoLab 5s are running from the SPDIF input, there is no ability to control the tone. This is because the tone controls on the BeoSound 9000/BeoCenter 2 and other systems are sound circuits built into the units themselves. When you connect the BeoLab 5s via SPDIF, they completely bypass all the sound circuitry in other units and everything is done by the BeoLab 5 itself (which is a much, much smarter, and better way of doing it).

Thanks your reply Alex

Hi,

Alex is right - the philosophy being that the BL5s are perfectly neutral speakers, and that channeling s/pdif to them, from the source, then provides you with a very close approximation of what's actually on the CD.

I'm wondering about your set-up, though. Are you switching Option settings according to what you're using as a source?

I wouldn't bother with the analog out from your CD-player. Just send the digital to it - this will override whatever is coming from your B&O source, and you should then be able to be in Option 0, and still have the speakers accept the digital input from the CD-player.

I have a receiver feeding to LINE in on the BL5s and my rear speakers -- with the BL5s set to create a phantom centre (which the acoustic lenses do a brilliant job of - no need for a centre speaker, seriously.)

Then I have a CD-player feeding an s/pdif signal to the DIGITAL IN. 

The speakers switch between the sources without any trouble. I'm in Option 1, though. But I have tried a B&O source for Powerlink and analog line IN, while having another s/pdif source, and that worked without any trouble in Option 0. 

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