Alesis QuadraSynth Plus manual

Editing Effects: Chapter 7

reverberant sound with much less high end (treble) than a room with hard surfaces. This reverb type can easily simulate both examples and many, many more.

Hall. Much larger than a room, Halls are characterized by their high ceilings, irregular shapes, and generally uniform density of reflections.

Large. Much larger than a hall, this reverb type emulates large ambient spaces such as amphitheaters, gymnasiums, etc.

QuadraSynth Plus Piano Reference Manual 148