> Do Ethernet cables have an effect on sound quality? Yes. Particularly when connected to a streamer. We did a lot of listening with various streaming devices, and every time changing the connection to the streamer made a big difference. We also experimented with the connection between router and hard drive, and yes this bought improvements, but the most important connection is the one to the streamer. This difference was noticeable regardless of whether we were running the cable directly to a router or via a pre-installed Ethernet cable network or a system where the Ethernet signal is carried over the mains.

This bit appears to break UK advertising regations about legal decent honest and truthful. So if anyone wants they could send a letter to the regulators of adverts (and websites count) in the UK - the Advertising Standards Authority.