Box is 18mm Baltic Birch with mitered corners, and the baffle is 18mm IKEA bamboo with a 3/4″ roundover. Except for some minor splintering, the box looks good and does not require a veneer. I plan to clear coat the baffle, and use Java Gel Stain on the box.
On my first listening test, I was really disappointed. Tweeter output was weak and uneven. I thought I had made a mistake wiring the crossover but everything looked good. After playing music for several hours, these speakers improved greatly and are now excellent. The 830874 mid-range is outstanding, and I really like the 27TDFC sound.
Thank you again for the informative emails, and for making your Cardinal-TA plans available. This speaker is as good or better than many much more expensive commercial products.