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Subject: Re: [motm] How to connect balanced signals to the MOTM

From: Charles Stella <cstella@...>
Date: 2006-03-30

Right you are Chris! Just checked I had assumed the Ring was grounded
since I have never had any problems with either type of cable. Thanks,
Charles.


On Mar 29, 2006, at 11:39 AM, xamboldt wrote:

> Actually the Ring connector floats in MOTM jacks - it's not connected 
> to anything. Some other 1/4 jacks connect the ring to ground, but not 
> Switchcraft 112A.
>
> That being said, I don't recall having any problems using TRS cables 
> coming from balanced equipment to my MOTM, and vice versa.
>
> -Chris
>
> On Mar 29, 2006, at 5:00 PM, Charles Stella wrote:
>
> > In my practical experience it does not matter if the cables are 
> > balanced or unbalanced. Most modern active balanced I/O's can 
> > tolerate being unbalanced without a problem and usually with no 
> > signal loss. The proper way to unbalance a balanced line is not to 
> > drop ground but to tie Pin 3 (XLR) or the Ring (TRS) to ground. 
> > When you plug a balanced TRS cable into your MOTM the Ring 
> > connector is automatically grounded so there's no need to make a 
> > special cable. This has worked fine for me with many different DAW 
> > interfaces (Digi , Apogee, RME , Metric Halo etc. )
> >
> > Best, Charles.
> >
> >
> > On Mar 29, 2006, at 7:03 AM, chad_kettering wrote:
> >
> >> Hello,
> >>
> >>  I have a few MOTM filters that I plan to use to process various 
> >> sounds
> >>  from my DAW. How do I connect the balanced outputs from the DAW 
> >> to the
> >>  MOTM modules, and then return that signal back into the balanced
> >>  inputs of the DAW for recording?
> >>
> >>  Do I need to build cables where one side is balanced and the 
> >> other is
> >>  unblanced ( the ground is lifted on the unbalanced end to avoid 
> >> ground
> >>  loops )?
> >>
> >>  Or should I use a line level transformer to change the signal 
> >> back and
> >>  forth to the MOTM?
> >>
> >>  Thanks and look forward to your experience with this!!
> >>
> >>  Chad
> >>
> >>
> >>
> >>
> >>
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