The pack includes 58 reverb impulses obtained from the 11 algorithms of the A+ Live V.2 reverb pedal. The impulses have the following formats:
- 96k@32bit WAV stereo
- 88.2k@24bit WAV stereo
- 48k@24bit WAV stereo
- 44.1k@24bit WAV stereo
Each of the pedal's algorithms is presented by several impulses with different DECAY knob positions. The number in the impulse's name roughly corresponds to the DECAY knob position.
EXAMPLE: CATH_000 has the DECAY knob fully CCW, while in CATH_100 it's turned up to the max. CATH: cathedral reverb. Five space options with a resonant peak at around 1kHz. Resonance increases with the DECAY knob's position.
CAVE: cave reverb. Five "dark" space options with prominent reflections. The amount and saturation of the reflections increase with the DECAY knob's position.
CRISP: a generative space with bright reflections and a resonant peak in the upper midrange. Saturation and resonance increase with the DECAY knob's position.
DRIP: various spring reverb options. The five spring reverb emulations range from short slapback echo to long and saturated reverb.
HALL: a large room reverb with five size and damping options. Damping is decreased and size is increased with the DECAY knob's position.
OCTA: octave reverb. The five impulses don't actually add the octave effect, but they retain the algorithm's character and saturation. Saturation increases with the DECAY knob's position.
PART: particle reverb. In each of the five impulses for this reverb/delay algorithm, delay time and reverb saturation increase with the DECAY knob's position. Delay times are different between the two channels and aren't bound to any particular tempo, which works great for ambient pads.
PLATE: various plate reverb options. The five plate reverb emulations range from smaller, simpler reverbs to complex structures with multiple "perception points". The size and upper-midrange resonance increase with the DECAY knob's position.
ROOM: a small room with prominent echoes. The five impulses simulate a poorly damped room with weird reflections, ranging from short and clear echoes to slightly larger reverb spaces. This algorithm works best for creating "close reflections", as well as for damping the sound of string instruments and beefing up the drums. Reflection character and room size change with the DECAY knob's position.
SHIM: shimmer reverb. The impulses provide five reverb options with a resonance sweep. The artifact which happens while capturing the shimmer reverb impulse results in a relatively rare reverb feature: a bright resonant peak at around 10–12kHz. Reverb saturation increases with the DECAY knob's position.
SLAP: a short delay. The eight impulses include five stereo delay options (ranging from 30ms to 250ms), two generative delay options (SLAP_1000, SLAP_2000), and a sweep impulse which was obtained by turning the DECAY knob while recording. Fixed-time delay might not be the most common impulse variety, but it's certainly nice to have, as the algorithm introduces extra filtering along with all-pass filters for early reflections.
Except for the SLAP group, none of the impulses feature any pre-delay.