Speaker Cables

[Borgen]

For Devialet with SMPS which typically are noisy, I would expect Devialet engineers to have done a good job isolating the internals from noise, but perhaps not paid too much attention from stopping it from leaking out?

A small story on speaker cables, for your experiment if you like. I once had a mid-priced speaker cable that was a bit too long and lying around on the floor. Hence, I coiled it up behind the speaker to tidy the room (just a few turns). A few hours later a friend came by and immediately raised his eyebrows and asked what I had done to the sound, he claimed it sounded much thinner (i.e. a true blind-test).

I would be surprised if the designer did that, and I think one doesn't get a CE certification if kit radiates interference.

A coil of cable adds inductance, so changing the electrical characteristics of the cable. It has been advised against for decades.

Most refrigerators and washing machines generate lots of noise back on the grid and they still get their CE approval. Medical equipment has special filtering to remove noise and to protect equipment.

As for the "coil" issue, I was just trying to make the point that as long as your cable is curled behind your racks or situated next to other cables or equipment that may radiate then this might be coloring the sound (I was not recommending this as a good practise).