How do I properly wire a patch panel for guitar effect pedals and recorders?

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Discussion Overview

The discussion revolves around the wiring of a patch panel for guitar effect pedals and recorders, focusing on the configuration and connections needed for effective signal routing. Participants explore various wiring strategies, the use of jacks, and practical considerations for studio setups.

Discussion Character

  • Technical explanation
  • Conceptual clarification
  • Debate/contested
  • Experimental/applied

Main Points Raised

  • One participant describes a plan to rewire an old telephone switchboard with 1/4'' TRS connectors for use with multiple guitar effect pedals and recorders, outlining a proposed layout for IN and OUT jacks.
  • Another participant suggests placing all IN jacks in the top row and their corresponding OUT jacks below, recommending the use of patch cables to connect effects in series.
  • There is a discussion about the absence of normal-switched jacks and the implications for wiring, with one participant noting the potential for distortion if diodes are used incorrectly.
  • A participant shares their experience of consulting a Physics professor, who echoed the advice given in the thread, indicating a shared understanding of the wiring approach.
  • Questions arise regarding the practicality of having separate patch panels for different configurations, such as fan-outs versus a simple IN to OUT setup.
  • Participants discuss the choice of wire gauge and type, with one noting the use of 20 gauge stranded audio wire and questioning its appropriateness.
  • Another participant reassures that any wire will suffice due to low current flow and low impedance outputs, suggesting that shielding may not be necessary.

Areas of Agreement / Disagreement

Participants express varying opinions on the best wiring strategy and configurations, with no consensus reached on a single approach. Some agree on the general layout and use of patch cables, while others explore different setups and wire choices.

Contextual Notes

Participants highlight the limitations of their setups, including the lack of normal-switched jacks and the potential for distortion with certain wiring methods. The discussion also reflects uncertainty regarding the optimal configuration for specific studio needs.

Who May Find This Useful

Individuals interested in audio engineering, guitar effects, and studio setups may find this discussion relevant, particularly those looking to wire patch panels for similar applications.

ShaneXavier
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I have an old telephone switchboard with standard 1/4'' TRS connectors that I am planning to rewire for use with my many many many guitar effect pedals and recorders and things. The switchboard has 4 panels, each panel has two rows of 26 jacks.

Let the 'o' be jacks and the '|' symbols are not there they are just imaginary to help group what I plan to do. I was planning on wiring the panel like this:

___________________________________________
[ 1 2 3 4 5
[ o o | o o o | o o | o o o | o o o o o ...
[ o o | o o o | o o | o o o | o o o o o ...
[___________________________________________

IN1 | OUT1 | IN2 | OUT2 | etc ...

so that the first four jacks (columns 1 and 2) have six outputs (columns 3 4 5) and this process will be repeated for the next group of 5 columns until there is a single column which I am not going to worry about. These in/out groups will all be separate from one another.

Now these are simple normally closed jacks with only the signal and ground leads. How exactly do I wire this? At first I assumed that I wire all the outs in series and all the ins in series and then throw a diode in there connecting the ins and outs. But then I realized that after a couple of gain stages I will get some wicked distortion from that diode and I need my audio fidelity.

Maybe I am just over-thinking this. Any help guys? I desire to learn!
 
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First I would put all the IN's in the top row, with their partner OUT's below them. That's the way I've wired studio panels anyway. Then, since you don't seem to have normal-switched jacks, just wire each box to its own set of IN/OUT jacks. Then you can use patch cables to build up a series of effects. If you had "normaled" jacks, which have a connection for a signal that is broken when you plug something in, you could wire the panel to have a "normal" connection, say each box in a series OUT to next-IN. Then you could dispense with all the patch cords until you wanted to change something.

I would also wire some sets of jacks together so you can split a signal to go to more than one input. To combine outputs you should use a mixer, rather than just plugging them together. You could make a _very_ simple mixer with a group of pots and resistors and put them on the panel too. Getting too fancy? Don't forget to wire you telephone to a jack so you can record off of it...heh...
 
Excellent information! Thanks a whole bunch. Yeah I realized I was probably trying to do something that did not make a whole lot of sense, especially since I don't have those nifty switch jacks. I asked one of my Physics professors and he basically said the same thing. I came to report the news in case anyone else was interested but I saw that you replied all too swift.

I did actually make a simple mixer and excellent that you say wire my telephone to one of the jacks because that was one of my first recording projects. Hands down telephone mouthpieces make some of the coolest microphones, like the Coachwhips does it:



Another quick question since you have done some studio stuff, would I have say a single patch panel devoted to the series of say a bunch of 4 jack fan-outs and then have another panel devoted to the one in (top) to one out (bottom) setup? I am merely interested in practical studio setup.
 
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Also, what wire (gage/solid or stranded) do you normally use to connect these? I was just using like 20 gage stranded audio wire. I'm sure it doesn't matter, just curious.
 
If you have patch panel strips to spare, by all means use a separate one for the multi's. IIRC there's about 25 jacks across a 19" rack, if you've got more than 10 effects boxes you're going pretty crazy...

Any wire will do. Not much current flowing. And most outputs are very low impedance, they won't have trouble with noise so shielding is not really required...