Devialet 120

[Axel]

The faint pulse is still there, but I have to listen hard for it (music off and volume up). This is both with- and without the wifi control app on my iPhone.

As long as the "pulse" is not doing any damage to the LS50 Metas, then it is of little consequence. The sound and clarity off the Supex is a step up from all I have used in the past. I can hear fine detail in the background I did not realise existed.

Incidentally, the amp is set up with firmware 7.1.1

I did try a power cable I made up, which seemed to remove a smidgeon of haze. However, the plug was too large for the back plate to fit. I have ordered a Furutech FI-C15(G) Slimline IEC plug. These fit.

As a matter of curiosity, do Ferrite Core rings have any place here?

Regards from Perth

Derek

Welcome Derek 🙂. I think @thumb5 is on the right track. Are you using the Configurator to  turn Auto Wi-Fi Standby ON here:    
 as Ian suggested? Or turning off Wi-Fi if you’re not using it? 
I don’t think a small flutter like that will do your speakers any harm, but it can be a bit off-putting when listening to quiet passages of music. 
I hope you enjoy your first forays into Devialet territory. I think you’re in for a treat!