Look interesting... Was there a reason you didn't leave the mid-range with the low range and then time align the tweeter? Also, are they calculated time aligned or is it just styling. Are you having any phase issues with the two coupling up in/out of phase? What are you thinking for cross-over points? Also, are you selling them as Active or are you going to build a passive cross-over system for them? It wouldn’t be a bad idea to put some type of protection on that tweeter and mid-range with some low end shelving. What kind of padding are you running into running them all active, meaning how many "db" on input are you running down or are you running it all flat? One last thing, is there a reason you didn't go with a normal vented enclosure for the low range?