Guitar signal through 3.5mm cable

[gutsofgold]

Would guitar signal suffer (noticeably) through 3.5mm (1/8") headphone cable? 5 - 6 feet of cable, roughly 24 awg.

I'm doing a "breakout" box for this weird synth that I found and need to make two I/O's. I originally thought of doing two 1/4" stereo runs but it's heavily amplified and modulated and I thought I would get cross-noise if I had the input and output that close to each other. Which method would you say is preferably? Or am I "ok" with either? I know ideally I should run four 1/4" cables but there is not enough room.

[GibsonGM]

"RCA" type cable for each signal might be a better choice, IMO.  You'll probably get noise, balanced headphone (2-conductor) cable not being shielded.  Sort of depends on the signal level, and SNR, though.  You could try it, or just go ahead with shielded cables...

[Ripthorn]

Be aware that parasitic capacitance will be different from regular cables and any longer runs of it might start to change your tone as opposed to regular cables.  Of course, 5 or 6 feet probably won't matter much.

[gutsofgold]

"RCA" type cable for each signal might be a better choice, IMO.  You'll probably get noise, balanced headphone (2-conductor) cable not being shielded.  Sort of depends on the signal level, and SNR, though.  You could try it, or just go ahead with shielded cables...

I was not aware of this. Why is there a ground connection then on headphone cable?

RCA is a good idea too, but at that point I wonder if I should run the input and outputs together in a stereo 1/4"