Here is my latest attempt @ a wooden horn. I wasn't happy with the size of the Yuichi A290 I built last year, so I scaled things down to fit the 1.5" driver. The finished dimensions are 17.5"x5.8"x9.75". These should be much easier to incorporate into a cabinet design than it's big brother.
I found a source of Tiger Wood 4"x4" material that machines well and is easy on the pocketbook. I used Ipe for the fins because of the contrasting color. Now, if they test out alright I can make use of my 2435HPL drivers.