Korg m50-73 User Guide

This lets you vary the volume relative to the note you 
play.

 is used by most programs to 

decrease the volume of softly played notes and 
increase the volume of strongly played notes, and the 
Amp Modulation parameter adjusts the depth of this 
control.

Normally you will set Amp Modulation to positive (+) 
values

. As this setting is increased, there will be greater 

volume difference between softly played and strongly 
played notes.

Specifies how the LFO’s will produce cyclic changes in 
volume (tremolo effect).

The volume will be affected by the LFO(s) for which 
you set an LFO1 Intensity, LFO2 Intensity value.

(AMS Intensity) adjusts the depth by which 

the tremolo effect produced by the LFO will be affected 
when you assign an AMS (LFO1 AMS, LFO2 AMS). 

For example, if you set AMS to JS-Y: CC #02, tremolo 
will be applied when you push the M50’s joystick 
down (toward yourself), or when CC#02 is received.

The Amp EG lets you control how the volume changes 
over the course of a note.

Every instrument has its own characteristic volume 
envelope. This is part of what gives each instrument its 
identifiable character.

Conversely, by changing the volume contour–for 
instance, applying a string-like Amp EG curve to an 
organ multisample– you can produce interesting and 
unusual sounds.

The Drive circuit adds saturation and overdrive to the 
sound, for everything from subtle fattening to drastic 
distortion. Unlike an overdrive effect, Drive processes 
each voice individually, so the timbre stays the same 
regardless of how many voices are being played.

The two main parameters, Drive and Low Boost, work 
together to create the overall effect. 

 controls the amount of edge and bite in the 

timbre. Low settings will produce mild saturation, and 
higher settings create more obvious distortion. 

Often, it’s useful to increase the Low Boost along with 
the Drive.

even when the Drive amount is set to 0, the 

circuit still affects the timbre. If your goal is a 

completely pristine sound, use the Bypass control 
instead.

 is a special low-frequency EQ which 

controls the body character of the sound. The specific 
EQ frequencies affected will change with the Drive 
setting.

Higher amounts increase the bass boost, and will also 
intensify the effect of the Drive parameter.

Piano

Organ

Strings