6" middle / 12" overall is correct. I'm not sure why I had 5.5" but the difference would be basically negligible either way.
Hey Matt, I was thinking that it would be cool if you made an update to the line. Like a Nexus Pro model in the WTMW and the towers where you use higher quality drivers. The center reminds of an affordable diy version of the Arendal 1528 center 8. Making a version that plays lower and has greater dynamic range would be cool! What do you think Matt?
I glued this egg-crate foam in, but I'm wondering if this looks under-damped. I could add some more polyfill at the back with a screen to keep it in place and away from the front end of the port?