Maybe try Steve at Sounds Heavenly at his sponsor link below ⬇

https://almando.com/almando-category/powerlink-switch.html https://www.ebay.com/itm/264427531661 Maybe these help?

Hi, Yes, I have these available with a choice of Twin RCA and 3.5mm minijack inputs:- Twin RCA Trigger: https://soundsheavenly.com/line-in-connection/101-459-singletwin-rca-to-beolab-2-7-10-28-and-2500-powered-trigger-kit.html#/2-length-1m Minijack Trigger: https://soundsheavenly.com/line-in-connection/102-438-minijack-to-beolab-2-7-10-28-and-2500-powered-trigger-kit.html#/2-length-1m These can be used to activate the majority of Beolab speakers via their Powerlink sockets (full list of compatible speakers can be found on the two links above.  Any questions, please ask! Kind regards, Steve.

Many thanks @Guy, @Mr10Percent and @Steve at Sounds Heavenly ! Very helpfull information. Just for my understanding ... Is it a matter of:

1. The PowerLink connector gets 5v continuously, and an incoming audio signal is the trigger
2. The PowerLink connector gets 5v as a short trigger (e.g. fraction of a second), caused by incoming audio.

  I try to understand how the trigger function works. E.g. If one takes the BeoLab 8000 and connects via the RCA input, the trigger is the audio signal coming in via the RCA.

No, that's part of the point of PowerLink: There is no audio-presence circuit required, thus no leading low-level passages are missed.  (An audio-presence circuit may also be included separately, which is how the RCA line-ins turn on the speaker -- eventually...) Power is applied to the pin continuously so long as the speaker is to remain powered up.  Calling it a "trigger" muddies the waters; it isn't.  I.e. there is no latching of the power/mute relay, the pin must be on 100% of the time. Note on some old B&O equipment the Power pin is distinct from the Mute pin, so that a speaker which requires time to turn on its amp can get a power signal first, then the mute signal closes the relay (before the audio is sent).

Thnx @trackbeo Ok, let's check if I understood correctly what you mentioned. This is what I took from it:

• So as soon as there is 5 volt on pin 4 of the Powerlink connector, the amplifier will switch from OFF to ON.
• As long as one wants to listen to music, the 5 volt power (to pin 4) should remain active.
• In this setup there is no automatic ON/OFF switching of the amplifier. The amplifier switches ON when the 5 volt power source (connected to pin 4) is put ON. And the amplifier will switch OFF when the 5 volt power source (connected to pin 4) is put OFF.

  Question

1. Are my points above correct?
2. If they are, how can I create a setup that automatically switches ON & OFF via a Powerlink input, when the audio source is non-B&O?

Something like this would probably do what you require: https://shop.oneremote.dk/shop/69116-powerlink-aux-adaptor/4154-powerlink-aux-expander/

1. I believe so, yes.
2. Previously answered, see above.

But if not the board's sponsor's product (why not, it's even reasonably priced!?) then perhaps Almando Powerlink-Switch or MultiPlay boxes, though they are probably more than you need.

Sounds Heavenly's products are great, no doubt. But (in this case) I am especially looking for something that works automatically: sound coming in, speaker switched on.