(11-Mar-2015, 09:58)knud0 Wrote: Hi,

just got my new Devialet 120 and found the following problem:

When not playing, or in standby or even if turned off the amp makes a permanent noise that
one can hear standing up to two meters away.

Is comparable to the noise of a mini hardisk running (e.g. in IPods classic) or the noise of
a cooling fan of a notebook.

Of course, neither a harddisk nor a cooling fan in built in! If a remove the amp from power, the
noise stops. So this has certainly to do with the power supply.

Is this normal? Do I have to worry about this? What can I do to minimize this noise?

Kind regards,

Knud

(11-Mar-2015, 11:25)Mohmm Wrote:

(11-Mar-2015, 09:58)knud0 Wrote: Hi,

just got my new Devialet 120 and found the following problem:

When not playing, or in standby or even if turned off the amp makes a permanent noise that
one can hear standing up to two meters away.

Is comparable to the noise of a mini hardisk running (e.g. in IPods classic) or the noise of
a cooling fan of a notebook.

Of course, neither a harddisk nor a cooling fan in built in! If a remove the amp from power, the
noise stops. So this has certainly to do with the power supply.

Is this normal? Do I have to worry about this? What can I do to minimize this noise?

Kind regards,

Knud

Do you connect your D directly to the wall power outlet or do you use some power treatment or power conditioner. Sometime ago I found power conditioners to introduce a noise in an amp, though not the D.

(01-May-2015, 23:42)Hifi_swlon Wrote: I'm glad someone else posted this comment. I was very surprised that I could hear this noise too on my D200. A hard noise to describe, I thought of it almost as the 'chattering' of a computer CPU or whatever.
I do think I've got sensitive hearing but mine's audible enough to hear a few metres away (although very faintly), and noticeably with my ear a few inches away. I don't think it will distract from music, but it's a shame I understood the device would be silent. There's actually more noise coming from the chattering of the unit than there is as noise out of the tweeter, which is virtually non existent.

(02-May-2015, 07:58)runlonger Wrote: Hi

We have discussed this topic in a previous thread:
http://devialetchat.com/showthread.php?tid=444&page=3

In the meantime I've heard nothing back from Devialet and I had the opportunity to hear 4 additional Devialets: two 200 (purchased in 2015), one 120 (purchased in 2015) and an old non-upgraded D-Premier (from ?). They all have it, the D-Premier was the worst. I have yet to see a completely silent Devialet in person. Until I do, I do not really believe they exist anymore or have ever existed. Maybe there was once a series of perfect power supplies, but not anymore.

I have also another theory. Some people simply are not able to hear it as I've experienced it with a friend, while I clearly did. So I'm certainly more sensitive.

There is nothing you can do about the noise except unplugging your Devialet...