Crossover: IIR or FIR?

[thumb5]

It seems to me that Devialet had a choice of how to present this capability in the configurator: they could have provided a "crossover" black box with a couple of parameters (cross-over frequency, filter order, ...) which would have been easier to use. Instead they chose to expose the underlying filters, which gives more flexibility for those who want or need it - the disadvantage being that it requires a bit more knowledge from the user. IIRC the default filter configuration is second order in which case it naturally "does the right thing", doesn't it?