Which pedal is the problem?

Discussion in 'The Stomp Box' started by David Meiland, Jul 15, 2021.

  1. David Meiland

    David Meiland Tele-Meister Silver Supporter

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    Wondering if someone knows the answer to this before I take everything apart for trial-and-error investigation.

    Signal chain is Boss tuner-->MXR compressor-->Empress para eq-->Strymon Mobius-->Keeley Caverns reverb/delay-->JHS Morning glory drive-->TC Electronics looper-->A/B switch-->amps.

    The Keeley is new to me. When I switch it on, it makes a hideous noise. If I switch on the Mobius, the noise stops.

    My assumption is that the Mobius does something in bypass mode that bothers the Keeley. The Mobius and other Strymon pedals have previously played nice with other reverb/delay pedals.
     
  2. Fiesta Red

    Fiesta Red Poster Extraordinaire

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    I was going to say the chorus pedal, no matter what the problem was, but that won’t work since you didn’t list a dedicated chorus pedal…I know the Mobius has chorus, but it does other things.

    I hate chorus.
     
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  3. Bluego1

    Bluego1 Tele-Afflicted

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    Try the buffered bypass option on the mobius?
     
  4. honeycreek

    honeycreek Tele-Afflicted

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    Sounds like a power problem to me.
     
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  5. Killing Floor

    Killing Floor Friend of Leo's

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    What isolated power supply are you using? If none, that's where I'd start. What cables are you using? If they are homemade or $3 that's the next place I'd look. Try revising the order of your pedals. This can be personal preference. Some pedals need a buffer and some pedals hate a buffer. But I would try the drive earlier in your chain, at least before the reverb, that's subjective, not a law. The Keeley Caverns does not have a level/volume control, just a blend control. But it is possible something upstream is too hot, the drive before the verb might help that. There is no rule with pedal order, just working with what you have and finding what sounds best.
    Isolate and experiment with order. Good luck.
     
  6. northernguitar

    northernguitar Friend of Leo's

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    Any power daisy-chaining going on?
     
  7. GreatDaneRock

    GreatDaneRock Tele-Holic

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    Put your drive before your modulation and time-based, this is very common knowledge, and unless you want some really chaotic sounding results, this is the way.
     
  8. richey88

    richey88 Friend of Leo's

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    I was thinking the same thing.....
     
  9. Tele-beeb

    Tele-beeb Friend of Leo's

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    Not really a problem, but… I’d love to have an Empress Paraeq in my effect loop
     
  10. David Meiland

    David Meiland Tele-Meister Silver Supporter

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    Thanks for the input on this. The power to all pedals is from an MXR Iso-Brick. I rearranged things to Mobius-->Morning Glory-->Caverns and that solved the noise, but based on comments above it sounds like it should be Morning Glory-->Mobius-->Caverns, and that would presumably make the problem re-occur. Maybe try a different reverb/delay? I'm trying this one because it's one less pedal than having separate reverb and delay, but maybe that isn't going to work out.
     
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  11. David Meiland

    David Meiland Tele-Meister Silver Supporter

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    It's a nice pedal...
     
  12. Bluego1

    Bluego1 Tele-Afflicted

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    Just curious if you tried switching the bypass on the mobius since you mentioned you were wondering about the bypass maybe being a problem in your op.
    [​IMG]
     
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  13. David Meiland

    David Meiland Tele-Meister Silver Supporter

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    OK, changed that setting (to buffered) and it made a major difference. Thanks for pointing it out. I have yet to dig into the pedal much, so far just have some presets I like.
     
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  14. Mark the Moose

    Mark the Moose Tele-Afflicted

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    I’m no expert but what I’ve read and experienced is that sometimes a digital pedal can bleed clock noise to analog pedals downstream which don’t have the necessary filtering to eliminate it. Sometimes changing up the power supply can help as can changing the pedal order.
     
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  15. northernguitar

    northernguitar Friend of Leo's

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    I’d try using a separate power supply for your digital pedals.
     
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  16. Dobbin

    Dobbin TDPRI Member

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    Common knowledge? Common knowledge that it is the generic recommendation but not an actual rule. Modulation before drive can be very sweet and is more common than the internet thinks it is. Ever tremolo your signal into a drive? Or consider what a wah pedal is and that they come early in the chain? Or that forever folks have blasted all sorts of pedals into a driving amp?

    YouTube is full of videos comparing pedal order and they all usually end with, "Drive before modulation is the usual advice but it isn't really a rule."
     
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  17. GreatDaneRock

    GreatDaneRock Tele-Holic

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    Mainly referring to time-based effects like delay and reverb ( in this order btw). I agree with modulation before od can be great, my phaser is always before od, but not chorus.
     
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  18. Dobbin

    Dobbin TDPRI Member

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    OK, but you did specifically state modulation as well.
     
  19. arlum

    arlum Tele-Holic Platinum Supporter

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    Try moving the Morning Glory Drive to just after the compressor and then try the chain without the A/B switcher in it.
     
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  20. cousinpaul

    cousinpaul Friend of Leo's

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    Although there are no rules, there's another reason for putting drive, boost, and compression first in your chain. If you place your gain pedals later in the the chain, you're going to boost the hiss and hum from everything that you've put in front of them. It's basic signal flow.
     
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