I looked at the Westra SPL/frequency response graph on the PE web site and selected a crossover point of 2,500 hz to minimize the effects of the Westra's uneven, peaky response above 4 khz. I purchased a finished two-way crossover by Dayton Loudspeaker Co. from PE. I imagine that a custom crossover to deal with baffle effects, etc. would be desirable, but this is only my third speaker project (the first two projects were passive subs) and I haven't gotten into crossover design yet.

I included a 50-watt mono L-pad between the crossover and the two tweeters so that I could adjust the tweeter output level, since to my limited knowledge the D2W is a novel center channel design, essentially sporting an "extra" tweeter compared to an MTM design. I thought the speaker might sound too "bright" and require adjustment.