This is a direct-feed (no effects/EQ added) recording of a sequencer demo entitled “KS Overture“ for the following Ensoniq synth family:
SQ-1 32-voice
SQ-2 32-voice
SQ-R 32-voice
KS-32
The demo apparently won’t work right with the earlier 21-voice versions of these synths and was recorded from an SQ-2 32-voice model. I’m not 100% sure if this demo was created by Ensoniq for in-store demoing, but such demos usually are created by the the name implies it was made for