Nothing will be compromised with a 3" mid in the a-pillar. It sounds great.Probably putting the tweets in the A-Pillar or with the Midrange in the Kick panels. A-Pillars are not that large, width wise.
I would really like to put both Mid and tweets in the a pillar but I'm guessing the SQ will be compromised with a 3" Mid
You know you can order one with a smaller flange, right?The OW1 is a delightful tweeter, but its tough to land on the pillar. There's no way to trim the size of the flange as the magnet assembly is nearly as wide (think: kinda hockey puck shaped). Hard to beat the Scan's sizeerformance balance.