SergeModular

--- In SergeModular@y..., "Kirk Degiorgio" <opart@d...> wrote:

>
> This grounding issue stuff really baffles me.
>
> I use a Kenton Pro2000 Midi-CV interface which recieves Midi
> from my sequencer and outputs CV into my Serge via the CVI

interface module.

>
> V/Oct tuning is rock-solid, gates & triggers and Midi clock all

work 100%. I

> haven't done
> anything to ground them to each other. No ground hum issues... and

nothing

> is grounded to any 'mixer'
> (the audio outs of the serge just go into a regular patchbay).
>
> I'm getting a rack of MOTM stuff next month and have been advised

by Paul S

> to ground them to
> the Serge PS using the STS supplied banana plug/grounding plug.
>
> Could somebody simply and easily explain why these things need to be
> grounded and what happens when they're not
> as in the case of my Kenton.???
>
> KD
>
>
> >
> > In a message dated 4/13/02 10:40:15 AM, mbw@c... writes:
> >
> > << then simply plug an
> > expressionist output into any input on your mixer to establish

proper

> > ground. try this and let me know if you are then getting the

correct

> > 1v/oct voltages. >>
> >
> > Wouldn't plugging any Expressionist output into a Serge CV

interface do

> the
> > same thing??... if not that might explain some of the tuning

problems I've

> > been having lately useing my MAQ through the expressionist to a

STS CV

> > interface. The MAQ is grounded to a Serge power supply and of

course all

> that
> > is grounded to my mixer but the Expressionist is not......

hmmmmm....

> > comments???
> > KInd regards
> > John DuVal
> >
> >
> > Hi Kirk

I'm not very technical , certaqinly no EE , but from my
understanding , sometimes you will get hum from having no earth
connection between the synth & power supply . Also , I believe it has
something to do with the stability of the system tuning wise etc.
Rex would give you a technical answer II'm sure.
In the USA I've noticed it will cause hum if not earthed more
easily , but the U.S. electrical system is less sturdy than here -
especially in (dis)regard to earthing .
When I connect my Fenix up , I earth that to the Serge power supply
& it has always been fine . I guess it depends what earthing & earth
loops your studio has already.
regards
Sonic