With the FabFilter Simplon VST 1.0 you have two multimode filters that provide all that is necessary for a live performance.
With the program you have low-pass, high-pass and band-pass responses and each of them have octave slopes of 12, 24 and 48 dB. The filters provided can be used in either a serial or a parallel mode. The two multimode filters also have three different characteristics for each one. These can be smooth filters, moderate to raw or even self-oscillating outrageousness.
The FabFilter Simplon also includes an interactive Midi learn feature, Smart Parameter Interpolation which ensures smooth transitions, SSE optimization and AltiVec. There are many presets that can be used and a sample accurate automation of all the parameters included in the program.
The interface is easy to understand and the interactive filter display is large. Filter curves are displayed clearly and you are able to drag and drop them to where you want them to be. The filters can be adjusted individually or at the same time.
If there are any problems using the FabFilter Simplon program, then there is a help file included. It is extensive and there are even interactive helping hints.