Yamaha PSR-550 Owner's Manual - Page 132

About the Digital Effects (Reverb/Chorus/DSP) q Reverb (System effect) Reverb effect type/depth can be set by panel operation. When you select a different style, the appropriate reverb type will be selected accordingly. q Chorus (System effect) Chorus effect type/depth can be set by panel operation. When you select a different style, the appropriate chorus type will be selected accordingly. q DSP (System/Insertion effect) DSP effect on/off status, type and depth can be set by panel operation. DSP effect will function as either System or Insertion effect. Whether DSP effect is System or Insertion depends on the selected type. DSP effect configuration will differ between System and Insertion effects as follows: • Although not all the effect settings cannot be made by operating the PSR-550 panel manually, some of them may be accessible through MIDI. Refer to the MIDI data format for details. When DSP type is selected as an Insertion effect Dry VOICE R1 DSP effect Rev Send Cho Send DSP Send VOICE R2 Dry Rev Send Cho Send DSP Send VOICE L Dry Rev Send Cho Send DSP Send STYLE Dry Rev Send Cho Send DSP Send DRY LINE REVERB Reverb Return CHORUS Chorus Return OUT DSP DSP Return When DSP type is selected as a System effect 132 140