There are three effects: Space (reverb), Chorus (ensemble) and Delay. All are send effects common to all voices; the amount depends on each voice level and its send amount.
NOTE The three send amounts and the HP filter cutoff stay with the part when you change its engine. See Section 2.4. Your effects balance survives an engine switch on stage.
6.1 Space
The Space engine is not only a reverb but also improves the stereo image of the dry signal. Send amount is set per voice with SHIFT + FILTER. The size and low-pass of the reverb are set over MIDI (CC 40 and 41).
6.2 Chorus
The chorus is applied per voice. Send amount is set with SHIFT + MORPH when the high-pass filter option is off. Turn on the high-pass filter option and SHIFT + MORPH becomes the per-voice HP cutoff. The chorus send is then not available.
6.3 Delay
Turn on Delay in the options ring (LED 8). SHIFT + TIMBRE then becomes the per-voice delay send (it replaces the noise level). Delay time, feedback, spread and low-pass are set over MIDI (CC 44 to 47).
6.4 High-Pass Filter
As an alternative to the chorus, a per-voice stereo high-pass filter can help Coral sit in a mix. Turn it on in the options ring (LED 7); SHIFT + MORPH then controls the HP cutoff. Over MIDI the HP cutoff is CC 20.