Roland Jupiter-8 With NEA Pyxis Aftertouch System
This video shows a Roland Jupiter 8 with the New England Analog Pyxis aftertouch system.
The purpose of this particular video is to show how you can disable the lower 4 voices on the JP8 so that aftertouch wont affect them. However, using the aftertouch sensor on the lower half of the keyboard can still affect how the aftertouch modulates the upper 4 voices. This creates some interesting effects. Using “whole” mode with the lower 4 voices disabled will produce a sound much like a CS80 or something with polyphonic aftertouch.
On this particular Jupiter, there are two separate disable switches; one for disabling filter and VCA effects from Pyxis on lower 4 voices, and another for disabling Pyxis control of VCOs.