The VMG-01 is a sample-accurate delay and delay measuring device for the Propellerheads Reason Rack. It can be used to induce delays as short as one sample and as long as 10,000 samples to any stereo signal flow while operating in true stereo. It also features a test signal output and a measuring input to test devices for their inherent latency.

Using these features you can use it to effectively compensate for latencies in your signal flow while mixing. The sample accurate delay is also very useful for precise comb filtering and haas effect type stereo imaging effects.