I really dig the mid-century flair of your cabinets. Also, really enjoy the use of SP-12's. Ive been curious about them for years, and thought they'd be fun to play with - sans those old Karlson cab configs.
My friend's father had built a pair in the 60's, (like so many others) and later when he bought AR3a's, well you know. Last I heard, my friend still has them in his basement. Along with the Eico amp he built to power them.
*Edit typo SP-12...
So far the Sp12-Bs are surprising me. They are nicely sensitive and seem to be good performers. I will say that I believe I have a very, very, very nice pair that sure seem like they have 'low mileage' on them.
Thank you, I like their look as well. I borrowed heavily from @je2a3 posts on his blog about his Emilar bowtie adventures.
Hope it's ok to link to it from here:
(Re)building a Hi-Fi Room
If I build a 'fancy' set of cabinets for these, I would use the same walnut plywood I used to build a friend a big desk and bookshelves. Trim it in solid walnut. Or even maple ply with thick solid walnut trim..... hmm...