Do powerline adaptors effect hi-fi sound quality?

Roger

Unless you learnt a different kind of arithmetic, or English comprehension perhaps, at your primary school I think you need to read the thread again more closely. And I haven't included Steve Hopkins who did admit to using PLAs as a temporary ethernet solution. So if nothing else this thread made him get his drill and reel of CAT5e cable out.

For me PLAs solved what would have been a difficult and costly cabling installation, they seem to work, are pretty reliable and I've not been convinced I need to do anything different.

Dave

Sums was never my strong point, Dave, and as for English... gave that up in the third year.

But I liked music 

Well since every one has an opinion here I decided to give mine as well. I connect my UQ2 with NAP100 to my music via uPnP over NetGear AV500's. I started a number, waited till it played, turned up the volume, paused the music and put my ear against the speakers.....

Nothing....
I'm not sure this is a good test for RFI, etc. but still the result gives me a very satisfying feeling

Unfortunately (particularly as it's a simple test to do), that will only test for one of the many possible effects of RFI (i.e. increasing the analogue noise floor).  Also by pausing the music, you're removing most of the traffic on the PLA link, so reducing the amount of RFI they generate.

But it still probably indicates that for the UQ2, RFI doesn't have a big effect on the analogue noise floor.

I think you could say the same thing about my system set-up. As well as the “turn-up the volume test”, which I described earlier, I have also conducted the AM radio test. The radio I used was mains rather than battery operated. I disabled the HomePlug wi-fi function and, yes, I could hear the data pulsing which disappeared when the plug was switched off. However, the noise level was no worse than other “crap” I could hear and was much reduced when tuned to a station which had reasonable signal strength.

Dave

Dave, if the radio was on MW or LW you should not have been able to hear anything from the PLA   other than perhaps very low level intermodulation sums and differences distortion. The PLAs don't transmit at these low frequencies, therefore what you heard would most likely have been by-products that would be very much attenuated from the main PLA carriers which usually start from around 3 MHz. This could be being done by low energy light bulbs, attached electronic appliances or the AM radio itself.

A short wave AM radio listening above 3 MHz would be direct reception and would normally be very loud unless perhaps you are lucky to have largely screened mains internal house wiring.

Simon