Its design uses a single push pull stage of amplification, the result of this is a signal that has no distortion or noise under all conditions.
The attack time of the unit is extremely fast - .50 microseconds (1/5000 of a second) and a release time of 3 to 25 seconds that provides real flexibility.
The unit can be used as a limiter or as a compressor.
A 2 to 1 ratio as a compressor or as a limiter with 30 to 1 ratio.
Of course you can operate it anywhere between these two.