Function Switching a.k.a. Controlling Your Amp
The Rack Gizmo has the ability to control footswitchable features on many amps. This could be channel switching,
reverb, tremolo, etc. – anything that is controlled by the amp’s footswitch. RJM Music sells a wide variety of interface
cables that connect the Amp 1 and Amp 2 jacks to the footswitch jack of many popular amplifiers. Once the connection
is made, the Function Switch buttons on the Rack Gizmo will operate like the amp’s footswitch buttons. You can use the
Function Switch buttons to program which channel (boost, reverb, etc.) turns on for each preset on your MIDI
controller.
Please visit the RJM Music website to see a list of amps the Rack Gizmo supports. If your amp is not listed there, please
contact technical support – we may still be able to find a solution for you.
Loops 5 through 8 can also be used for function switching purposes. To use one or more of these loops for this purpose,
connect a standard ¼” guitar cable from the Out jack of the loop. Make sure nothing is connected to the In, Send or
Return jacks of the loop. Connect the other end of your cable to the footswitch jack of the amp. Pressing the loop
button on the Rack Gizmo should now control the same channel or function that your footswitch did. You can save the
state of this channel or function for every patch, just like you can for the other audio loops.
Stereo Loops
Loops 5 through 8 on the Rack Gizmo are stereo capable. If you plug a stereo or TRS (tip-ring-sleeve) cable into these
loops, you can switch stereo unbalanced signals or mono balanced signals. Although they are stereo capable, these
loops can always be used for standard mono signals – just be sure to use mono cables.
If you need to connect to equipment that has separate left and right inputs and outputs, you will need to use insert
cables to connect it to the Rack Gizmo. These cables have a stereo connector on one end and split the stereo signal to
separate left and right connectors.
The Rack Gizmo can also be special ordered with all loops upgraded to stereo capable. Please contact RJM Music for
details.
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