> Hi Dieter 
>
> Thanks for the advice,
>
> What I actually need is to build a case with a Doepfer PSU2 and
> connect a Mean Well S-40-5 (+5v) output switching power supply to
> add a powerful +5 to it , this is in order to use 3 x Metasonix
> r55 modules that suck a lot of +5v. I also wanted to have
> independent power switch for it (as they draw a lot of power ) so
> thought in a 3u case , BUT NOW i realized that one of the two
> back panels in a G6 case (the top one) can be removed and
> replaced with a a-100 b84p , that has the PSU2 already installed,
> then un-plug the top bus board and connect it to the top PSU2
> (the one that also has to be upgrade with the Mean Well +5 v .
> That way I can have a G6 case with two PSU each one with it's own
> power switch and fuses and it's own bus board. The top part for
> those tube modules. 
> I can ask a technician to do the job for me.

Yes, this should work. But do not forget to connect the GND of all power
supplies to obtain a common GND reference for all modules.

Best wishes
Dieter Doepfer