Dave Smith Instruments Sequential PROPHET X User Manual page 22

All factory programs have a "B" layer, even if that layer isn't currently enabled.
To hear Layer B in isolation, press the
active) by turning off the
time enables Layer A again.
Press to enable
Layer B editing
Button is lit when
split is active
Split and Stack buttons
Stacked Programs
Stacking two programs allows you to create extra complex sounds, since
you can have two completely different programs layered on top of each
other.
Polyphony is halved in Stack mode, so your 8-voice Prophet X, func-
tions as a 4-voice because it uses two voices for each key played. If you
want to increase polyphony, press the 16-
Prophet X into 16-voice mono mode. Polyphony doubled, but the stereo
filter signal path is converted to mono. Digital effects remain in stereo,
however.
Enabling 16-voice mono mode
10 Chapter 1: Getting Started
edit layer b
button or
stack split
Button is lit when
stack is active
Press to enable
16-voice
mono mode
button and disable stack or split (if
button. Pressing
edit layer b
button. This switches the
voice
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a second