'Correct' way to wire a XLR -> TRS cable for reamping

[jangoux]

Guys,

I 'have' a Radial X-Amp (it is not actually, it is from the place I work...) and for some reason I cant get it not to hum. Tried like a dozen cables, made one this afternoon myself and the thing hums like a motherfucker when the TRS end is hooked to anything.

Anyone?

 

[egan.]

That sounds like a ground loop issue, not a wiring issue.
Here you go anyway:

Pin 1 and sleeve should be the ground wire.

 

[jangoux]

Exactly what is there. I actually used this image to make my cable. Btw, ground lift improves the matter a little bit, but not much. It still hums

 

[guitarguru777]

Definitely a ground loop issue then. You need to get all the items you are using and anything hooked up to them on the same power conditioner / outlet

 

[jangoux]

So, amp, interface, reamp box, computer, tubescreamer , everything on the same power conditioner?

 

[heshian46]

Either that or you go through one by one and test which is creating the hum

 

[greyskull]

are you going through a patch bay?

 

[jangoux]

nope

 

[Skaldir]

nope

Have you tried running the tubescreamer with batterys and not with psu?

 

[nickbb]

I have never reamped but when my laptop is plugged into the same power strip as my 6505 it hums like biatch... so maybe its the computer?