Sound and Character of the Dual Reverb Engine
The hall reverb and particle reverb run simultaneously rather than as separate effects, so both contribute to the same tail. Resonance Sound describes the particle engine as pitch-shifting from -12 to +12 semitones using two overlapping grains. Audio Damage says this approach is designed to avoid the metallic artifacts found in many shimmer reverbs.
Expanse selects one of three tuned room modes (Small, Medium, or Large). These modes shape the delay network and spatial character of the hall reverb, not only the decay time, which gives you a way to change the feel of the room itself.






