The Korg EXP-2 is a foot controller from Korg that does two jobs with one housing. Korg describes it as "a lightweight and compact volume/expression pedal," meaning the same unit can sit in your signal chain as a volume pedal or connect to a keyboard, effects unit or MIDI-capable device as an expression pedal1.
Which mode you are in depends entirely on which jacks you use. For volume pedal duty, your instrument goes into INPUT-1 and OUTPUT-1 feeds your amplifier or the next pedal in the chain. For expression duty, you use OUTPUT-2, which sends a control signal to the expression input of the gear you want to control1.
Volume mode and expression mode
The two modes are set by the wiring, not by a switch:
| Mode | Connections | What it does | |
|---|---|---|---|
| Volume pedal | INPUT-1 and OUTPUT-1 | Controls the level of your instrument signal in the chain | |
| Expression pedal | OUTPUT-2 | Sends a control signal to an expression input on other gear | 1 |
In volume mode it behaves like any passive volume pedal: rock the treadle forward for more level, back for less. In expression mode it becomes a controller for parameters on keyboards, multi-effects units and other gear with an expression input, with the included stereo cable making the connection1.
Minimum volume setting
One control worth knowing about before you set the pedal up: the EXP-2 lets you set a minimum volume in a range from 0 to approximately 50%1. In volume pedal mode this means the heel-down position does not have to be full silence. Set it partway up and the pedal sweeps between your chosen floor level and full volume, which is useful for keeping a rhythm level underfoot while boosting for leads.
Size and weight
At 460 g (1.01 lbs.) and 87 x 200 x 91.5 mm, the EXP-2 is small and light enough to move between rigs or drop into a pedalboard without adding much bulk1. That portability is part of the design: Korg positions it as a lightweight and compact controller rather than a heavy steel volume pedal built to stay in one place1.
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Questions
Does the Korg EXP-2 come with a cable?
Yes. Korg includes a stereo cable for expression with the EXP-2, so it is ready to connect to an expression pedal input on a keyboard, effects unit or other gear without needing a separate TRS cable.
How much does the Korg EXP-2 weigh?
The EXP-2 weighs 460 g, or 1.01 lbs., and measures 87 x 200 x 91.5 mm (3.43 x 7.87 x 3.60 inches, width by depth by height). Korg describes it as a lightweight and compact foot controller.
Can the Korg EXP-2 be used as a volume pedal?
Yes. Connect your instrument to INPUT-1 and run OUTPUT-1 to your amp or next pedal, and the EXP-2 works as a volume pedal. Using OUTPUT-2 instead puts it in expression pedal mode for controlling keyboards and effects.