"The Swiss army knife of splitter and mixer rack effect modules"



The Mixer routing rack effect module allows splitting and/or mixing signals.  Bass players can split their dry signal, sending some to an effects loop, then mixing the wet and dry signals to taste.



We know that spending money on modules that just route your signal from Point A to Point B isn't very exciting.  It's a lot more interesting to get new effects instead.  When we design routing and utility circuits, we try to add some "extras" so that the result isn't a one-trick pony that's trick may not always be useful.  The Mixer module is an example of a multi-purpose module.

It has a single input.  That input gets split and sent to two loops, A and B.  The returns of the two loops are then blended together with an adjustable mix ration and volume and an optional phase correction is applied before sending the combined result to the single output.  The whole thing is switched or bypassed together, with an override option to keep it always on without using up a footswitch.

You can use it for multiple purposes.  You can use it as an A/B splitter.  You can use it as an A/B Mixer.  You can use the splitter and mixer separately.  You can use it to mix the input signal with a copy of the input signal that has gone out to a loop and come back.  That is particularly interesting to bass players, as it allows you to mix some dry signal with an effect signal.  Maybe you have an effect that doesn't sound so great with bass.  Perhaps if you mix a little of the effected signal with some dry signal it will sound much better.  That is what some guitar pedals do for their "bass version".  Sometimes when you mix something with an effected version of itself, some effect in the loop might change the phase of the signal, causing the mix to sound bad.  The Mixer has a phase switch that can remedy that situation.  Those are some of the options.  The Mixer User Manual details the operation of the module and how it can be used.



  • Mixer - a GT original design, but there's probably some boutique mixer pedal that does something similar



Send and Return of both loops are buffered.  The Send buffers are the same as Input buffers for the module.





Front Panel

  • Mix control
  • Volume control
  • Phase switch


Rear Panel

  • Audio In
  • Send A
  • Return A
  • Send B
  • Return B
  • Audio Out
  • On/Off Footswitch
  • On/Off Override
  • DC Power
  • DC Power LED


Module Width

  • 2"
  • left and right wings not currently available


Power Consumption (aprox)

20 - 24mA


Base Configurations

Part # Description List Price
MOD-MIXER Mixer module $199



Part # Description List Price
MPT-MIXER-CA Replacement pot, switch, jack, LED cable assembly $19
MPT-MIXER-KNB Replacement control knob $2
MPT-MIXER-PB Replacement power board $29
MPT-MIXER-SB Replacement switching board $29