Wallmount panel

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Deepdark

Well-known member
Joined
May 19, 2013
Messages
1,321
Location
Quebec, Canada
Hi all

I'm building a wallmount panel between my booth and the control room. So, one side is 16 female XLR and the other side is 16 male XLR (pretty basic I know). I also put 2 headphone connectors (2x TRS jack on each side) and 2 instrument jack. I just picked some encased TRS jack for the instrument and headphone jacks (all the same one). Is it ok to plug an instrument cable (TS) into the TRS jack (my understanding is that there will be no contact through the ring so the signal will be carried as TS). Is it ok?

Second one, regarding to linking both side of the wall panel, is it better to buy some high quality XLR cabling and just cut the required lenght and solder each side to the connectors? I guess it's better due to the shielding around the cables? Same thing with TRS? Do I have to ground the chassis (the faceplate are aluminium)? Because, it's like I was just passing a cable through a wall between a microphone and my soundcard. The only difference is that I have a panel to make things a little more elegant haha. I see the wall panel as a continuity of the cable, so I don't really need to groudn the case, since the ground will end up in my soundcard connectors, which are gorunded.

Thank you all folks :)
 
Yes, you should ground the panel. However if you use uninsulated TRS jacks, the panel with connect to the TRS sleeve. Better to use insulated TRS jacks, and run a ground wire back to your system ground. If you don't want to do that, earth the panel to one of the mike line shields. Then it will get earthed via that shield. Use good twin sheilded cable. You can use the TRS circuits for TS as well.
 
Question #1 - Yes, The 3 conductor wire connecting the two TRS jacks should have a shield around the 3 wires.
Question #2 - Yes, a good quality shielded mic cable connected to both jacks.
                      The wall plate doesn't need to be grounded. the cable will carry the shieldthrough to both jacks.
You should stagger the wall plates. One above or below each other on each side of the wall. That way you won't have a straight thru hole in your wall that sound can travel thru. If it's new construction you could frame mount staggered wooden boxs in each side to mount the panels in. Or frame a box on the outside of the drywall, that way there would only be a small hole in the wall for the wires to pass through.
 
Deepdark said:
Is it ok to plug an instrument cable (TS) into the TRS jack (my understanding is that there will be no contact through the ring so the signal will be carried as TS). Is it ok?
Thank you all folks :)

When you connect a TS plug into a TRS jack, the "Ring" gets shorted to the "Sleeve".
 
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