3 Attachment(s)
4688 TCB Monster Subwoofer
Triple Chamber Bandpass sub uses dual 18" drivers in "Push-push" configuration. Motors in center chamber.
Drawing shows center (red) and outer (blue) chamber details separately. Bracing comprising center chamber "port tubes" only shown.
[Oodles more bracing therein. :p ]
Tech note here: http://audioheritage.org/vbulletin/s...ead.php?t=6289
JBL Lit here: http://www.jblpro.com/pub/obsolete/4688.pdf
Yes, looks like a REAL sub...
Zilch,
I noticed this awhile back in your photo, and it got me thinking. "I bet I could build one of these IF I had some pictures and the plans for one. And here they are.
I wish I lived closer to you, so I could take a bunch of pictures, and take all measurements. I would love to build one of these monsters. I think it would be perfect for realistic pipe organ "power".
I could build this and install a couple of $29.95 "Super Woofers" that I could find in a surplus catalog somewhere, and I would be in heaven.:D
AND, than I could tell everybody that it was "genuine" JBL.:bs:
No, really I would like one to lay down and use it for a platform under a big screen TV. Talk about LF effects!
Richard C.