Marshall PED-L90008 Stompware Pedal
Made for the MGFX Series Marshals with Built in Effects, this 4
button footswitch gives the MGFX user control over the Channel,
overdrive, tap tempo and tuner switches on the front panel or 4
completely independent presets. Switch between Clean/Crunch,
stomp the Overdrive to give your setting a volume boost, adjust
the speed of your delay or modulation effects with the Tap Tempo
switch and tap into the built-in tuner right at your feet so you
can get back to playing.