Here is a picture hammr7 sent of the Karlson cabinets -
the cutout is for 12 inch drivers, and yes, there are backs for the cabinets ...
I have a pair of JBL 2214 woofers I will probably try in them first ...
I have a pair of blonde wood cabinets they are currently in that I use as pedestals and "helper woofers"
for a pair of UREI 809As that sit on top of them as "front Mains" in the TV room.
(I have another pair of 809As as side surrounds in that room)
I also have a 3rd pair of spare UREI drivers, meant to be backups for the UREI 809As,
and spare crossovers that are "supposed" to be for them (but look nothing like the crossovers actually in the 809As ...)
The UREI 809A drivers are cool - basically a JBL 2214 12" woofer with a concentric horn on the front and a JBL compression driver that screws onto the back.
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