I own Eureka Aircraft, and manufacture Radio Control airplane kits.. http://www.eurekaaircraft.com
A guitar player, owned a music store till the mid 80's, sold a lot of PA gear, ran a lot of sound, and taught more bands to run sound than I can remember, along with repairing most of the gear in the area during that time. It came naturally to me since I built my first guitar amp back in 7th grade, and got my degree in electronics...
Got back into playing more lately, since we are in a very musically active tourist town. Helped on a small festival in June down the road from us (http://www.summerheritagefestival.com & fallheritagefestival.com) by doing sound, with borrowed Mackie 450's, and whatever I could come up with.. Everybody liked what they heard, I had great fun, even from borrowed equipment, and the couple days reminded me that running sound is what I am supposed to do

The next step was do start a small sound company, and started looking for cabinaets, etc.. Everything was easy except for the cabinets. I was very unimpressed by what I found out there, so started looking for cabinet plans.. That is when I found the BFM page

In the sound era I come from, horn loaded cabs were common, since big amps didn't exist like they do now. I was used to cabinets like the Sunn 115SR, and later Model 10's, 12's and 15's, and the incredible 412LH bass guitar cabs (Entwistle, Squire, etc), and its 212 brother. I already knew about the high efficiency, and superior sound produced, with common speakers, and wondered why I couldn't find any on the market. Bill said it best, manufacturers don't care about what they sell, just how much it costs, and a square box is a lot cheaper than a real cabinet to manufacture, and with big amps everywhere, who needs efficiency ;(
Going to have fun doing this, and hope to use the airplane kit cutting equipment to my advantage...
Don (EAC)