Dave I need help...How to stop the pop?

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LP Freak

LP Freak

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I get a pop on my CCV when I turn on any of the FX on my board that have a button style switch. They're all powered by a Pedal Power 2 Plus. Delay and chorus are through the loop. Eveything else is through the front of the amp. Any ideas how to elimimate this before I go nuts?

Here's my board...pretty simple.

NeutrikJacks002.jpg
 
Does it also happen with your Randall midi switcher? Do you get the same sound when you engage/disengage the FX loop? Bright switches? Going to and from clean and dirty channels? Good luck.
 
I've had the same issues in the past. Normally, I use a 100 watt plexi with no master volume. Turning mechanical switches on and off in front of a loud amp with a decent amount of gain sometimes sounds like a gunshot. There are a couple of ways to eliminate this that have helped me:

1) Companies like Cusack Music and Jack Deville Effects sell kits that replace those mechanical switches with a momentary switch that controls a small board containing a relay. This is similar to how a switching rig works (Bradshaw, Voodoo Lab, RJM, etc). These kits are cheap and work really well. They cost around $20 and are easy to install if you know how to solder.

2) Use a Voodoo Lab Pedal Switcher. It's great if you only have a few pedals.

3) Sometimes there is stray DC that can build up. You can dissipate this by stepping on the switch a bunch of times until the popping goes away. The trick is to find the culprit in your chain that is leaking the DC. I've read that even the input stage of your amp can cause this in your pedals. I'm a total novice when it comes to circuits, however. If someone could verify this, I'd greatly appreciate it.

I've made loop boxes out of those relay kits that work really well. I'll put several pedals in the chain of the loop box and make "presets" before engaging the loop box. It's totally silent and lets me turn several pedals on and off with one button push. Basically a poor man's Bradshaw rig without the bad attitude and 14 month wait with zero return communication.
Yes. I had a bad experience.

I hope that helps or at least gives you some ideas to think about.
Good luck.
-mike
 
50MkII":1r4aazgn said:
Does it also happen with your Randall midi switcher? Do you get the same sound when you engage/disengage the FX loop? Bright switches? Going to and from clean and dirty channels? Good luck.
No, it's only on the FX.
 
Sounds like you can rule out anything coming from your amp. Where do you have your gain style, gain 1 and 2 dialed in on for the dirty channel? Do you get the same sound when running the chorus and delay through the front end? I am assuming you dissipate the built up energy as the previous poster suggested before stomping on the fx.
 
50MkII":2lacd14t said:
Sounds like you can rule out anything coming from your amp. Where do you have your gain style, gain 1 and 2 dialed in on for the dirty channel? Do you get the same sound when running the chorus and delay through the front end? I am assuming you dissipate the built up energy as the previous poster suggested before stomping on the fx.
I figured it out. It was the true bypass on the TC. :doh: I turned it off and the pop went away. I still get the pop on my tuner (only when tunring off) and Timmy though. Not sure if that's gonna go away.
 
It's nothing to do with the amp. It is just static discharge in the pedals. Click all the pedals on and off a few times when you turn the amp in standby with your guitar plugged in to the board. This usually does the trick. Will that tuner stay on while playing or does it mute when on? If you had something with a tuner out on it where the tuner didn't stay in the chain, that would probably kill it.

Steve
 
steve_k":hcmb0wi9 said:
It's nothing to do with the amp. It is just static discharge in the pedals. Click all the pedals on and off a few times when you turn the amp in standby with your guitar plugged in to the board. This usually does the trick. Will that tuner stay on while playing or does it mute when on? If you had something with a tuner out on it where the tuner didn't stay in the chain, that would probably kill it.

Steve
I tried the turning on/off thing and doesn't seem to work here. The tuner mutes when it's on so you have to turn it off.
 
Here is a link to a similar discussion. There are instructions for checking if your amp is the culprit for the stray DC that is causing your true bypass pedals to pop.

"A funky not-so-bitchin preamp tube can cause DC to leak out of the amplifier, creating the potential for some pedals to "pop" regardless of design practices observed. "Good" designs will pop given the right circumstances, "bad" designs will be quiet given the right circumstances."

https://www.thegearpage.net/board/archiv ... 77154.html

-mike
 
drburns73":20pqvsda said:
Here is a link to a similar discussion. There are instructions for checking if your amp is the culprit for the stray DC that is causing your true bypass pedals to pop.

"A funky not-so-bitchin preamp tube can cause DC to leak out of the amplifier, creating the potential for some pedals to "pop" regardless of design practices observed. "Good" designs will pop given the right circumstances, "bad" designs will be quiet given the right circumstances."

https://www.thegearpage.net/board/archiv ... 77154.html

-mike
Thanks for the info Mike. ;)
 
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