Hi Gryph,

Thanks for the update, it shouldn't be a ground issue as the Beolab speakers aren't grounded (they use a 2-core mains lead without a ground wire).  The results from the Line In sockets of the TV are best ignored, as these are likely to give spurious noises if the speakers are connected directly to these sockets in most situations.

Please can you try a good pair of headphones in the TV Audio Out socket to see if they also produce the high-frequency whine?

Kind regards, Steve.

Hi Steve, 

Still new to this so a little research may have pointed me wrong!

Just double checked - there's definitely no high-pitched tone going from the TV -> Sennheisers. It returns as soon as the Beolab 6000's are plugged back in, and both in Audio out (Variable) and Headphone modes.

Kind regards and all the best

Gryph

Post now edited with a video upload - let me know if you've got any ideas! 

Still having this ongoing problem - have tried various configurations, headphones, active speakers off the PC, and it's only the 6000's that are producing this whine when connected to the TV. It's something that I absolutely won't be able to live long term. 

Any suggestions welcome as admittedly I'm running out of ideas.

Part of the shine looking at Bang and Olufsen was that they were active speakers not requiring a separate receiver. If the only solution to clear this up is going down that route, I'd be tempted to just throw these on ebay and go back to British with B&W for the same sort of cost and better long term upgrade path. 

The headhone out on tv's are never a good match for quality audio. Especially on the sony's, they all have mayor ground issues. You could try a ground-loop seperator, also check for 4G disturbance. As the tv does not ground certain pairs in the powerlink cable they could pick up noise.

The hub of bang and olufsen that uses the optical output is the best bet. 

Gryph wrote:

Still enjoying the 6000's but can already see upgrading to a set of Beolab 8000's in the future. Design and build quality are as important as audio and I do think they look timeless. Give it a little while, but for now these will do fantastically.

Hi Gryph,

I'm sorry to hear that you are having problems. TV headphone outputs often work well for direct connection of Beolab speakers, but some TVs do result in issues like this occurring.  One simple and cost-effective solution that avoids any need for a receiver is to add B&O's S8 Connection Hub (around £149 GBP from B&O stores) between the TV and the speakers.

You can then use an optical cable from the TV to the Hub: link

Please connect the nearest speaker to the Hub with an RJ45 to Powerlink cable: link

You can now link the two speakers with a standard Powerlink cable: