By the way, if you have dimensions on those DiVinci woofers I might be interested for another project. You say they are 4.5", is that the cone diameter or the basket diameter? And how about across the screw holes, what's that dimension? And what is the depth? Thanks in advance.
The woofers are 4.5" mounting hole pattern, diagonal but I did have to use deadmat around the edges because the squarish basket edge had gaps around the sides. I still have some internal cabinet tweaking to do to improve bottom end response. So far, midbass is warm but kickdrums sound a bit weak because the cabinet is so huge compared to the woofer sizes...
The depth of the woofers I did not measure but the magnets on these 4.5's are rather huge. If you use modern large magnet drivers, you will have to swap locations, top to bottom with the original Mid/Highs since the cord compartment & amp board would interfere with the woofers when mounted in the bottom corners...
yeah, the chrome woofer cones look like the business to me too. Here's a couple of pics of the original woofers with a ruler to give you an idea of the mounting size:
