We are using P2 units in our signal chain for digital broadcasting. When we change from one preset to another, a brief audible click is heard. Could you tell us why and if it can be eliminated?
The P2 and DB2 units only feature fast switching between the first 8 user ("Front Panel") presets. Try to copy the presets you're switching between into that location.
If you've already done that, you should also have the parameter Look Ahead delay set to 0.0. The limiter still has 0.8 ms of look-ahead, which should be enough.