hello florian,

there is also no mechanical hum.
my psu2 is totally silent.

best wishes

ingo




--- In Doepfer_a100@yahoogroups.com , Florian Anwander
<Florian.Anwander@c...> wrote:

> Hi Ingo
>
> > psu2
> > ----
> > much better than the old one.
> > i always had problems with my a199 and hum induced
> > by the power supply. now that i've mounted my a199
> > inside a new frame with psu2, all the problems had
> > gone. no hum and buzz anymore.
> Also the mechanical hum of the PSU1 is gone
>
> Florian