using TRS cable for FX loop send/rtn?

[sixstringking713]

do any of you guys use a TRS cable for FX loop send/rtn? (to save the bulk of having 2 separate cables run to/from your amp?)

I already have a patchbay on my pedalboard, could wire a TRS jack to split the signals off in the patchbay to 2 separate 1/4" TS outputs..

I have 3 cables that run to/from my amp usually..
1) pedalboard->amp (before preamp)
2) amp_fxsend->pedalboard
3) pedalboard->Amp_FX_RTN
entertaining ideas of making a "snake" or something to reduce the amount of connections I have to make every gig. ideas?

was maybe thinking of using Mogami W2549 (mic cable) and wiring a 1/4" TRS on one end to plug into my pedalboard patchbay, then on the other end wire 2 1/4" TS connectors.. Use that for the FX loop send/rtn from the amp. that would save 2 connections setup/teardown. the internal connectors are almost the same AWG as the 2524 cable so the ohmic loss is similar. I noticed the capacitance is actually slightly less than the 2524 cable but the inductance is higher. I might just wire it up and try it and see if I notice a difference in sound or not. Since it's the FX loop I doubt itd have a big impact on sound since it's already past the preamp stage; if I used the 2549 on the connection to the input of the amp, it'd probably be more apparent if there's a difference in sound.

My existing way is I just use 3x 25' mogami 2524 cables. I might just wrap them in a flex tubing and call it done. idk

 

[Dave L]

Yeah, I don´t see why not, but like you almost said there isn´t that much point to it either - and you´d probably end up having to carry a TRS-2xTS as backup as well.

 

[JMMP]

The only problem I could see happening is a ground loop, but that depends on how you wire your patchbay and the amp side connector. Basically, just make sure ground is only connected on the input side or the output side, or at worst, you could transformer isolate one side as well. Same thing on the pedalboard end. If you can make a closed loop with just your ground wire, you are at risk for ground loops, and because of the shared ground on each side of the cable, you need to isolate in two different spots.

 

[sixstringking713]

The only problem I could see happening is a ground loop, but that depends on how you wire your patchbay and the amp side connector. Basically, just make sure ground is only connected on the input side or the output side, or at worst, you could transformer isolate one side as well. Same thing on the pedalboard end. If you can make a closed loop with just your ground wire, you are at risk for ground loops, and because of the shared ground on each side of the cable, you need to isolate in two different spots.

When I used a multimeter it read the that ground on both send/RTN are the same connection.. So I'm not sure I understand what you're saying