With the VSS™ SR (surround) algorithm, you get a unique room simulator for matrixed surround production. The diffused field of the simulation is turned into an Lt/Rt signal with separate decay, level and pre-delay parameters for front and rear.

The output of the simulator is compatible with both mono, stereo and matrixed surround reproductions. When used for surround productions, you don't need a surround encoder, but you should use a Dolby ProLogic™ compatible decoding system for monitoring, though.