Early Size: Controls the distance or size of the early reflections.
Early Level (Early Level): Controls the effect that the Early Size control has on the overall sound of the reverb.
Size (Size): Increases the size of the reverb space, also having the effect of making the reverb tail last longer.
Width: Stereo width; at 0%, the reverb will be completely mono, losing all stereo information. At 100%, the reverb sounds as wide as possible in the stereo field.
Pre delay (Pre delay): The AR1 reverb response is delayed by the amount of pre-delay in milliseconds. This can create the effect of an even larger space or simply sound more natural. Sound reflections usually take some time to reach the ear. Adjust the exact amount with pre delay.
Bandwidth: Reduces the amount of high frequencies in the reverb. This makes the reverb sound "softer," like in a space with soft furniture and rugs, instead of, for example, a kitchen or bathroom with many hard surfaces.
Damping: Controls how quickly the high frequencies of the reverb dissipate over time. Higher damping will make the reverb sound softer and make the overall volume of the reverb appear to decrease more quickly. High damping means that the reverb is absorbed very quickly by the room and does not reverberate as much.
Modulation: Adds a little pitch modulation to the reverb tail.
Mix: Controls the amount of original audio that is mixed with the reverb. Set it to 100 to get only the AR1 reverb tail.

Technical specifications
MAC
OS X mac 10.14
Memory: 2 GB
Plugins: VST-2, VST-3, AU, AAX

WINDOWS
Windows 7
Memory: 2 GB
Plugins: VST-2, VST-3, AAX