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In the Forum: Horn-Loaded Speakers
In the Thread: The African compression electromagnet drivers?

Post Subject: HT vs. 2 channelPosted by Kerry Brown on: 11/20/2013

Paul,
The two channel system is separate from the HT system - the gigantic plywood folded horn subwoofers support the screen but that's the only connection to the HT audio system.
The HT system is three Orb Audio 8" powered subwoofers, 3 x Gallo Ref. Stradas for L,R&C and Orb Audio side and back surrounds on all on a Pioneer AVR.
The tweeters are obviously not physically time aligned - not sure that's especially important considering they are filtered at 5kHz but they are electronically time-aligned and phase corrected,
Don't feel any desire to mess with those diaphragms actually, happy with them as they are.
I don't know what Cogent's diaphragms are made of but they are probably still carbon fiber from what I have read online and from what Steve has told me.
I used to think JBL 375s were about the best thing going but the B&Cs are so much better it's ridiculous. As for compatibility, the geometry of the 375 is not optimized for fast opening horns like cones and tractrix designs, it sounds better on slower opening big exponential horns. Actually modern hockey puck style JBL drivers are better on rapid expansion horns.
My bass horns are weak at 500 Hz and so were the JBL375s, upper bass was barely there. The B&Cs are good to 400 Hz, the quality of upper bass/lower midrange is the best I have heard from any system.
Best Regards,
Kerry

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