I have one of these cabinets too!
Found it for $50 bucks on Craiglist, and posted the question "What would YOU do with this cabinet?" on diyaudio.com. Two weeks later, and 11 pages in, I'm listening to it now with a JBL 2220A 15" woofer, a QSC 10" x 14" Waveguide horn with a Selenium driver and an Econowave crossover. It sounds wonderful, and I haven't even moved it into the corner yet--it's smack in the middle of the living room and filling it with more big clean sound than I ever expected.
My original idea was a 50's vintage mono mid-fi system, powered by a Heathkit A7. But this thing is definitely not mid-fi, it's fi is very hi. I'm thinking of taking it to a cabinet maker to have it replicated for stereo.
The discussion can be found here: http://www.diyaudio.com/forums/multi...o-cabinet.html
This thread was referenced today in that thread. This is my first post here, but I have been scavenging info at this site for a long time. I'm old school, JBL and Altec are audio comfort food to me.
These cabs are awesome. It's amusing that Jensen's name for it was a "compact back loading folded horn." OK, compared to the refrigerator in their tech bulletin no. 1 maybe, but it's a big, beefy cabinet, and sounds just like it should, and I haven't even put it in the corner yet.
Welcome to Lansing heritage Wilberforce!
I read your thread on diyaudio and hope to have my horns up and running in the fall.\
Too many other projects to do first.
Regards, Ron
May the Force be with you, Wilber!
Great to read of your DIY journey with this design. Having two of these babies, I hope you'll go for broke and get a good cabinet maker to build you another. Or...might you try it yourself?
The horizontal shelf bracing reduces cabinet wall resonances, but never having heard this design without it, I can't comment on the improvement. The horn walls are large and if you play some bass heavy music and place your palm on the outside of the wall, I'm sure you'll feel some vibration. Hook up a signal generator to your amp and sweep the low end and you can identify the cabinet wall resonant frequencies with the "palm test."
On the other hand...if you love the sound, just sit back and enjoy!