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FOOTSWITCH USE
Two foot-control devices can be used with Rumble Studio 40/Stage 800 ampliers—the MGT-4 Footswitch
and the EXP-1 Expression Pedal.
The four-button MGT-4 Footswitch comes with Rumble Stage 800 and is optional for Rumble Studio 40. It
enables convenient remote foot control of several functions, including the built-in tuner, amp preset selec-
tion, Setlist preset selection, Quick Access preset selection, eects bypass, 60-second looper and more. The
EXP-1 Expression Pedal, optional for Rumble Studio 40 and Rumble Stage 800, is a dual-mode digital pedal
that controls Rumble Studio 40/Stage 800 volume and amp/eect parameters.
Each pedal can be used individually by connecting to the “FOOTSWITCH” jack on the amp’s rear panel, or
both pedals can be used simultaneously by “chaining” them together (instruction on how to do this are
found on the bottom of the EXP-1 Expression Pedal).
The MGT-4 Footswitch layout consists of four buttons—a MODE button at far left, and three numbered
FUNCTION buttons. Four MODE LEDs are at far left (one directly above the MODE button and three below
and left of it), with three other FUNCTION LEDs along the top (one above each FUNCTION button) and one
more FUNCTION LED in the center just below the DISPLAY WINDOW.
A. MODE BUTTON: Used to select among four modes: QUICK ACCESS (“QA”), PRESETS, EFFECTS and LOOPER.
B. FUNCTION BUTTONS: These three numbered buttons enable foot control of several Rumble Studio 40/
Stage 800 functions, depending on the footswitch mode in use.
C. DISPLAY WINDOW: Displays the footswitch function currently in use.
D. MODE LEDS: These four LEDs at far left indicate which of four modes is in use—QUICK ACCESS (“QA,”
red), PRESETS (red), EFFECTS (green) and LOOPER (amber). Top MODE LED also serves as a FUNCTION LED
(E) in some instances.
E. FUNCTION LEDS: Series of red LEDs along top of footswitch and a single green LED just below the
DISPLAY WINDOW (C) that indicate various functions in use. Top far-left MODE LED (D) also serves as a
FUNCTION LED in some instances.
MGT-4 FOOTSWITCH FEATURES
1
FX 1
REC/DUB
PRESETS
EFFECTS
LOOPER
2
FX 2
PLAY/STOP
3
FX 3
UNDO
BANK DOWN
QA
MODE
HOLD
TUNER
BANK UP
MGT-4
ASSY. P/N 7710238000