Today I received (as a gift), and old SWR 4x10 bass cabinet. It appears to be a Goliath II. It is in sorry shape, and the horn has been removed and the crossover gutted. I am going to rebuild it, and would like some info on a replacement crossover. I see that Eminence makes a 2-way 3,500HZ crossover - do any of you have experience with this ?