Stanwal,
I would call Marchand if I was you. The owner has forgotten more about crossing over speakers than the collective brain trust here has ever known.
If he has made a crossover for your speakers before, he has a set of parameters worked up already. I think you will be surprised how simple it can be for Marchand to build something for you. Also, there can be several different modules they can suggest, very reasonably priced, to make adjustments.
I would call Marchand if I was you. The owner has forgotten more about crossing over speakers than the collective brain trust here has ever known.
If he has made a crossover for your speakers before, he has a set of parameters worked up already. I think you will be surprised how simple it can be for Marchand to build something for you. Also, there can be several different modules they can suggest, very reasonably priced, to make adjustments.