No, the programs are for sale. But I think they have some evaluation versions available. It used to be that you downloaded them but now it looks like you request an evaluation CD. One thing I think is cool, is that you can draw a schematic and the system will model it. You can print a copy of the schematic and build a prototype to confirm the model. Then when you are satisfied with the circuit, you can have a circuit board layed out. All this on one suite of programs on the same software platform. It's really pretty slick.

Wayne

P.S. Here are a PSpice model I had done for an active crossover based on Steve Bench's circuit. It provides CD equalization for my loudspeakers similar to what the π passive crossovers provide.

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