Peavey DPM V3 Owner's Manual page 56

4.1 ABOUT SIGNAL PROCESSING
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4.1a Effects Structure
Single Effects
Reverb:
produces the type of ambient effects found in rooms and concert halls
Delay:
produces echo unit effects, where a sound is repeated on a regular basis
EQ: equalization; a type of tone control used to alter frequency response
Dual Effects (these include two of the above single effects)
4.1