I would do something drastic for a pair of those tall boy largers.
The construction you see on those was the same on the Original Subwoofer, which had one 12" active and one down firing 15" passive. When I started working for Brian in the 80s it was in the garage of the home he had with his first wife only a few blocks from his last home. "Two guys in a garage" as Brian used to call us.
The 3/4" horizontal edges of the top panels and base panels on those early woofer cabinets (look at the tall boy image) were bare. We had melt-on rolls of 3/4" wide strips of real oak and walnut veneer. We used a regular clothing iron and melt on the veneer strips, smelling up the garage with melted glue.
You never knew if Brian was making stuff up or telling the truth. His first wife used to come home after work, drive up, they'd kiss, they talked in German, she'd go in the house, we carry on, etc.
One time Brian, while soldering, breaks the silence and tells me his wife has absolutely no idea what Brian does for a living. Of course I presume he exaggerates. But he insists she has absolutely no idea, so I finally believe him.
His first wife spoke at Brian's memorial, and she indeed seemed to have total knowledge of Brian's passion. Brian got me again. I'm no good at poker, as you can tell.