Alesis QuadraSynth Plus Reference Manual page 128

Editing Effects: Chapter 7
order to have your changes remembered and heard the same way in the future.
The actual arrangement of depth of reverb, delay time, etc., is saved as part of the
Effects Edit parameters when a Program is stored. It is possible for different
Mixes to share the same Effects Patch. So keep in mind that when you edit an
Effects Patch, it may affect the sound of any other Mixes that also use it.
QuadraSynth Plus Piano Reference Manual 129