Crossover emulator
The crossover emulator (or auralizer) makes it possible to emulate the transfer function without the need to build the crossover, in short LspCAD acts as a crossover (with some help from the CPU in your PC), the crossover emulator is a powerful tool when one wish to test various crossver slopes and topologies.
The crossover emulator works with any audio card that has WDM or ASIO drivers.