[eprokos]

Hi!!

I am trying to connect the Beosound Theatre to the Beolab 18 with cables.

Got from B&O some powerlink cables and after discusion with the local service agent we agreed to connect it from one side straight to the Theatre and cut the other end of the cable to connect it to a wall socket from ABB (the powerlink cable which I run through a wall tube). From there run another b&o 3 meter beolink cable to the speakers.

The problem is that no matter how well I do the connections in the wall socket, I always here noise from the Beolab 18

Any thoughts or tips?

Thank you

[Anonymous]

Hi,

first of all why do you cut the b&o cable?

they sell them in different lenght with rj45 connector on side

same on both theatre to wall and from another wall outlet to speaker

and about the cables and connectors in the walls need to be shielded otherwise you get the problem you describe

 

 

 

 

[eprokos]

I have a tube inside the wall from which I run the cable

That is why I cut it. To connect it to the wall socket from behind and then run a new cable from the beolab 18 to the wall socket

do you have noise? what wall outlet did you use or how did you mount the cable to the wall socket? you have a photo?

[Severed_hand_of_skywalker]

Im guessing it’s the wall socket? Perhaps it’s not grounded of poor quality. You need to use really high quality Cat7 SHIELDED cables and make sure they don’t run along with power lines in the wall.

[eprokos]

the cables running in the wall are from b&o original powerlink. I just cut the one side and connected to the wall socket from behind.

what type of wall sockets are you using? I am guessing it is the wall socket

[Anonymous]

Do you have a picture of your wallsocket?

it need to be shielded! (Metal connector)

most wallsocket are plastic and cannot be used

if you cut cable where do you connect the shield

in the cable to?

[eprokos]

bellow find attached the wall socket

is there any socket that anyone has tested and knows it works?

I am open to whatever wall outlet works

 

[Tignum]

Hello Eprokos, when used properly, your socket should be good.

Is the white/brown wire not missing on PIN 7? The back of the terminal is missing (here the braided shield is connected to the housing. The braided shield should not be close to where the colored wires are punched in, you risk shorts. Have a look at this: https://www.youtube.com/watch?v=TlU2P12gDso

From the Beolink handbook 1.9, this should be the wiring schedule for PowerLink cabling:

To me it looks like you should carefully redo the wiring. Best is to use solid wire core wires. Between two wall sockets (or patch panels) you can also use good quality standard CAT7 S/FTP wiring in 568-B pinout configuration (see the top color scheme in your socket).

Regards, Johan

 

[eprokos]

thank you for the reply

I re-did all the wiring. bellow I am attaching new photo of the wiring. is like the video you send.

still noise..

maybe because one side is straight to original plug and the other one to a wall socket?

 

[Tignum]

Hi eprokos, two suggestions:

– when you connect the Beolab 18 directly to the Theatre, all is good?

– you could obtain a little tester (as below) to check correct continuity of all connections

I expect that the colored wires in the Powerlink cable are flexible, and the copper core inside consists of many fine strands. The ABB terminal expects one thick solid copper core inside each wire (as you have with in wall ethernet cables). The little ‘knives’ cut the isolating plastic and ‘bite’ into the solid copper core of ethernet cables. With the flexible wires of the Powerlink cable this might not work so well.

In my home I have the exact same RJ45 terminals: one close to the speaker, one close to the audio device, connected in wall with CAT7 solid core installation cable. Between the terminal and the speaker/audio device, I use a Powerlink cable. Works very well.

Hope this helps, regards, Johan

[eprokos]

I had the exact same thought. Actually I was kind of afraid that the speaker had a problem. Connect it straight and no noise at all.

I ordered a cat7 s/ftp and another wall socket. So I can run from the theatre to the socket with a new powerlink and from the other socket to the 18s again with powerlink.

 

 

[Tignum]

Maybe add a tester to the order! (+ battery) They are cheap, and will give you confidence that the cabling job is good. Regards, J.

[eprokos]

It is amazing what happened. Finally fixed it.

After like 10 hours of crimping. Buying new cables. New wall sockets. Cable tester…etc..

the problem was the original B&O powerlink 1.5 meter from the wall socket to the speaker.. the ground on the cable was not working 🙁

changed the cable and suddenly no noise!!

already called service to send me a replacement cable

thank you all!!

[Tignum]

Great that you got it working! I know the frustration it can give. Enjoy the result. J.

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