The VSS4 TS For film work, multiple mono reverbs may often be more useful than pre-configured structures for stereo, 5.1, 6.1 etc. The VSS™4 TS algorithm gives you 2 discrete mono reverbs that you can be use completely independently. You can use VSS4 TS reverbs in multiple mono configurations, where the effect has to end up in predictable places, or combined to cover arbitrary multichannel configurations. Reverb responses may be correlated or de-correlated as you see fit.