I am using 4 lg. monsoon planar panels from the mm-1000 model, as replacements for the emims in my infinity rs2.5's. I have a few more and was wondering if I could just ad them in parallel to create an array, without making any crossover changes????
No, you can't. You need to rearrange all of the monsoon drivers into a series/parallel combination that approximates the original impedance. This should help Series - Parallel Load Calculator
Andrew