Devialet phantom 1 disaster.

[Ebro]

I had an electrician do a check on my system and there is nothing abnormal with it... also all my other electronics are working perfect. i am also testing a power strip that switches off if there is a power peak that could overload the system.( it did not turn of).

An electrician will check your power circuits at a certain point in time.  What I suspect you have is a spike caused by something internally or externally.  Hence, my suggestion for a power monitoring box.

i could try a power conditioner but they are €250+. so that is a pricey test.
What do you mean by affect the sound? that they would play less loud? or less quality?

Have found some power conditioners affect the dynamics of a system (tested by playing something with a fast beat). However, other people are happy to accept that. 

A power conditioner may filter out the power issue causing your problem???

I there a possibility that is has something to do with the optical/toslink connection?

at this moment i lost hope. i saved up to finally buy this system and i got 2 years of problems...
I can't belive that a €6000 system has so much problems.

Unlikely to be optical.

I am surprised you have lasted this long! Maybe ask for money back from Devialet because they know about issue?
---
Have you tried the Phantoms in another house?

I will ask around for a power monitoring box, it sound like a good test.

I have asked for a refund but they are not willing to do that. also they told me that my warranty is running out. so i think the help from the support will stop after this exchange.

i have tried the phantoms in another house 1 time. but that is not a good test. sometimes i can watch 3 or 4 movies with no problems.