The SIFT algorithms mentioned above are fantastic for pads. I’d like to add that any reverb algorithm works nicely for pads with INF, FREEZE, or extremely long Decay options, and these can be faded in & out with an expression pedal / MIDI.
You’ll only need one H90 for this; perhaps just 1/2 of one. All of the mixing options are there to ensure the right balance between dry & effect, at both the Program & Preset levels.
