Just a curiosity question, but this driver sticks out to me when sorting through the spreadsheet again and again. I'm not planning on building anything with it (though the 8cx looks useful for wedges)- but it has my curiosity up. What the heck is it good for? (Say it again yall) The ABSOLUTE SMALLEST configuration it appears to go in is 18ft^3 for B2 sealed. This appears to mean that its intended for an infinite baffle cabinet, but with a Qtc of .54 - it'd be a bit on the weak side. The coax tweeter implies to me that it's meant for some kind of professional sound reinforcement, but that stuff is usually optimized on size, unless it's built in.