Creative variation or bastardization?
Not sure if this qualifies for EWG project status, but here's what I did:
Took a pair of baffles I made a long time ago, mostly an excuse to learn to use a plunge router and circle jig. 3/4" MDF. Located a pair of high Qts 12" drivers (Stromberg-Carlson Slimline). Cut rectangles immediately above 12" hole to mount JBL wave guide. Results:
X2
Mounted waveguide and 12" drivers. Mounted Altec 902 drivers to adaptor flanges (too lazy to pull B&C DE250 off of Martinelli horns) and screwed to waveguide. Pushed them in place, roughly, in front of JBL cabs and Martinelli horns. It looked like this:
X2
Hooked up each driver to the crossover output I was using for my pseudo-4-Pi combo of JBL 2226 and HF horn.
Not surprisingly, the HF needed a LOT of attenuation to match the OB 12" (8 o'clock vs. 12:30 to match the 97db JBL 2226). Also needed more from the amp, not surprisingly. But with a little bass boost, it sounded pretty darn good! The LF was respectable, and probably would be slightly better with the baffles positioned with the edges against walls in a corner, and maybe with a stiffener/support member. Compared to most speaker systems, it is pleasingly free of the boxy colorations, of course.
For more low end, there is room under the 12" to add a high Qts 15", e.g. one of the console or organ drivers visible on the floor in one of the photos. That sort of fits with the idea of doing this on the cheap with the kind of drivers you can pick up endlessly for nothing.
Or I could recycle these by cutting the baffles into rectangles for use in a box... But as-is, these are kind of interesting eye-openers. With a subwoofer, I think a lot of people would find the sound impressive.
