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The GigRig Humdinger

Split your signal, correct phase & kill hum.

Great for DI, reamping, wet/dry and plenty more besides.

The HumDinger was designed to eliminate earth loops in audio equipment by isolating the second output with a high quality audio transformer. Earth loops are a common complaint. As soon as the ground on your gear has more than one main route to earth, you have the potential for an earth loop. The best and safest way to get rid of an earth loop is to isolate the ground that is causing the hum. 

Using the HumDinger to get rid of earth loops is easy. If you use 2 amps all you need to do is stick the HumDinger at the end of your effects chain. Your main (buffered) output goes to one amp and the isolated output goes to the other. Your earth is consistent through the main output but isolated through the isolated output. 

Using a mains powered effects pedal, simply place the HumDinger in the chain after the mains powered effect. The Mains powered effect is your main ground and the ground from the amp is isolated.


POWER - 9V / 100mA
OUTPUTS - 1 x buffered, 1 x transformer isolated/phase reversible 
DIMENSIONS - 5.2cm x 2.6cm x 10.2cm / 20.5" x 1.02" x 4.02"
WEIGHT - 0.25kg / 0.6lbs

20 Reviews Hide Reviews Show Reviews

  • 5

    Posted by Isai Garces on May 29th 2020

    Quality, compact, solid
    Love the way it works no problem adding to my pedalboard and the wet dry rig is just perfect. Achievable thanks to the gig rig humdinger

  • 5

    Posted by Hunter Hartley on Dec 20th 2019

    I had no idea how amazing a wed/dry rig would be until I heard one on That Pedal Show! I knew from then on...i needed a wet dry rig! thanks guys for making my dreams come true!

  • 5
    A must need for a wet/dry rig

    Posted by Edd on Aug 26th 2019


  • 5

    Posted by Eric Roberts on Aug 16th 2019

    I got this to experiment with Wet/Dry after watching the gents on That Pedal Show . The Humdinger works perfectly and the sounds I'm getting are beyond inspiring.

  • 5

    Posted by Bernhard Penzias on Jul 15th 2019

    Like all GigRig products, this one delivers in spades. It is small, so it fits onto (or underneath) pretty much any pedalboard. Highly recommended!

  • 5

    Posted by Unknown on May 2nd 2019

    Works perfectly.

  • 5

    Posted by Jim Kranz on Apr 9th 2019

    As others have said, I bought this for Isolated output for a dry out in a wet/dry rig that I am putting together now. Always wanted too and thanks to Dan and Mike sharing in detail how they do theirs, I was motivated to do mine as well. This unit is small and made really well. It does exactly as they said it would. Thank you.

  • 5
    Exactly as advertised

    Posted by Mason H on Mar 20th 2019

    Isolated output for a dry out in a wet/dry rig works as exactly Dan and Pete described (when they made me need the extravagance of a wet/dry multi-amp rig in the first place). So, well done you bastards.