Daisy chain BL2

8 replies

Due to my current configuration, with equipment cables in walls, I’d like to daisy chain a BL2 sub to a pair of BL1s from a BS9000, with the sub being the last speaker in the chain. Is this possible, in spite of the BL2 guide suggesting the sub should be first in the chain?

Don’t do it

Hyponx's answer is right - but I thought that I'd add one small comment.

It's possible (with an unknown probability) that, if you have a pair of "main" loudspeakers (in this case, your BeoLab 1s) in parallel with a subwoofer (your BeoLab 2s) it could result in LESS instead of MORE bass. This is because it's possible (especially in cases where ports and slave drivers are present) that the phase responses of the loudspeakers (in conjunction with loudspeaker & listener placement and room acoustics) cause the signals to negatively interfere with each other - resulting in cancellation.

Note that, in cases where this does happen, it would typically only happen in a specific frequency band - not the entire bass. So you can have situations where you get a bump and a dip (or bumps and dips) in the magnitude response due to the various loudspeakers "cutting each others' grass".

Cheers
-geoff

PLEASE READ before sending me a Personal Message. If you have questions about or problems with B&O equipment, these should be directed through your dealer and/or B&O's Customer Service department. I cannot be a "short circuit", bypassing these communication channels. Thanks -geoff

Thanks everyone for the advice. Will have to buy a longer cable and do some reconfiguration. B&O knows best...

Actually, one more (related) question: Is 5 pin din cable sufficient to connect the BL2 to the BS9000? Or do I need the full 8 pin version?

And another (possibly stupid) question. The BL1s are currently daisy chained. Could I simply connect the BL2 to one of the powerlink sockets on the BS9000 to achieve the same effect as putting the sub first in the chain? Or would this be mixing methods?

Thanks Geoff, I hadn't thought of that but it makes complete sense!

I'm going to defer commenting on the cable to some of the other folks here with more expertise (Steve must be around here somewhere)

The desired affect of the subwoofer when connected to the BS9000 will only be achieved if the connections are in this order: BS9000 --> BL2 --> BL1's. So no the second variation you proposed also wouldn't work

As an aside what you are describing (Using one plug on the BS9000 for the BL2, and the other plug on the BS9000 for the BL1's) could be possible with a Beosystem or a Beovision television as they have more sophisticated crossover controls, but not the BS9000.

Cheers!

Hyponx wrote:

Thanks Geoff, I hadn't thought of that but it makes complete sense!

I'm going to defer commenting on the cable to some of the other folks here with more expertise (Steve must be around here somewhere)

The desired affect of the subwoofer when connected to the BS9000 will only be achieved if the connections are in this order: BS9000 --> BL2 --> BL1's. So no the second variation you proposed also wouldn't work

As an aside what you are describing (Using one plug on the BS9000 for the BL2, and the other plug on the BS9000 for the BL1's) could be possible with a Beosystem or a Beovision television as they have more sophisticated crossover controls, but not the BS9000.

Cheers!

Hi,

You could put your Bl2s in parallel with your BL1s by either

  • using a Powerlink splitter (one output for the sub, the other for the main loudspeakers)
  • daisy-chaining all three with the two BL1s coming first.

However, as I said, both of these solutions are probably a bad idea... :-)

Cheers
-Geoff 

 

PLEASE READ before sending me a Personal Message. If you have questions about or problems with B&O equipment, these should be directed through your dealer and/or B&O's Customer Service department. I cannot be a "short circuit", bypassing these communication channels. Thanks -geoff
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