I built the fusion quad 4's and displayed the crossovers in the same way,,I used an led on those and I'll likely get around to doing it on these 1099'sGreat job! The 1099's look great along with the xo board exposed on the bottom. Have you ever thought about putting a low voltage led light on the bottom so when it's dark the bottom xo board would light up. That would look cool. I seen that on a speaker at Axpona.