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I take it the JBL drivers are the compression drivers? Got pics?
Sorry, no way to post pictures right now
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I take it the JBL drivers are the compression drivers? Got pics?
Introduced in 1984, first "theater" speaker from JBL, first JBL's to receive THX certification. They have a solid place in the history of audio. One of their first installations was in The Motion Picture Academy.Yep, I've become partial to my 4675's now... I've heard a lot of JBL speakers, but these are the most dynamic and enjoyable JBL's I've owned...
OK, how about Sid Harman selling HII(which included JBL, Tannoy, and Ortofon) to Beatrice Foods in 1977 when he became Under-Secretary of Commerce under Jimmy Carter?Sounds like a book I need to get... and believe it or not.. Yes I knew about him and his work with Altec.. They weren't known as Altec Lansing, just because they liked his name
And cause I learned stuff like that here and from you and Zilch previously.. :thmbsp:
Here's the sheet for the 4675A which is what I have with the 2225H woofers.. .I like this sheet.. Nice parts breakdown, and I like noting that yes, mine has the rubber rings on the woofers too. I'm sure a lot of those are long gone..
I'm sure though you would be hard pressed to hear the difference between the A and C versions.. .and also, mine does not have the factory crossovers or networks shown. I'm sure that was an option that wasn't bought. Appears to be no where they were ever mounted.
Also. mine has the 2445J horn drivers, which are 16ohm, so probably a little easier to drive than the H (8 ohm) on the C version speakers
http://www.jblproservice.com/pdf/Theatre Series/4675A.pdf
Ya know.. after looking at that schematic for the crossover network, I wonder how hard it would be to get all the parts.. and better yet.. how expensive... not real sure about those coils I'm seeing ..
Another edit.. eewww... I didn't realize the bottom end was wired to 4 ohm either.. damn, I'm really diggin my AudioSource amp now hearing how well it drives a 4 ohm load and isn't really made to do that with..
one version: http://www.jblpro.com/catalog/general/product.aspx?PId=77&MId=1
another: http://www.jblpro.com/catalog/support/getfile.aspx?docid=634&doctype=3
Note that these are later revisions and do not use the same woofer as Simi's.
I actually run a pair of those 2035's in my VOT's, wish i could find more as they have some "special" qualities.
Put your meter on them to be sure.Another edit.. eewww... I didn't realize the bottom end was wired to 4 ohm either.. damn, I'm really diggin my AudioSource amp now hearing how well it drives a 4 ohm load and isn't really made to do that with..
I was thinking you had some recones in there which can present other possibilities. Remember, they don't change the label when they re-cone with a different impedance kit.They are 2225H and from everything I've read says H is 8 ohm, (J = 16) so figure half that in parallel... I like your idea better though to be positive..
EDIT.. Yeah, 4 ohm.. need to get them on a proper amp..
FWIW, proper recones are not at all a bad thing. Good sound contractors will recone/replace drivers on a schedule in applications where continuous or hard use is the norm. A theater typically puts a LOT more hours on sound equipment than a touring sound company before it's replaced, and some theaters run em pretty hard.:yes:and they all look so close I would guess they are all recones,
Nice thread indeed. Yup, several.. for example, below are the bargain 4311’s I've got last summer. Just had to find new midranges, 2105’s in there now, and they deserve a repaint. Have had 4312’s L/R before, and still have 4310’s w/ walnut veneer also waiting for a slight cabinet overhaul this winter – I just can't resist to white woofers.Time to resurrect this thread - anybody got any new JBL pics they wish to share?

