Darkmoebius,
Thanks for the details. Helpful info!
I bought some of scan speaks higher end woofers for the inside. Redo all the wiring. Isolation to the cabinet of both the crossover and the mids, tweeter pack. Tons of resonance control among some other tweaks. I would still think the db level would be about the same.
I do plan on using a sub.
Thanks everyone for your feedback. I have checked all these units out.