JBL 4756A

[lu13]

Hello,

Have someone a technical sheet of this cabinet, or know which
speaker were used in this cabinet? (or Fotos)
THX

Ludwig

[JBL 4645]

lu13


I’ve used Google and Google image under the heading “JBL 4756-A” nothing! Are you sure you got the numbers the right way around?

Because if the numbers where switched around I get this ”JBL 4675-A” which is THX approved!

http://www.hibino.co.jp/proaudiosales/product/jblpro/cinema/images/thumb/4675c.jpg

[lu13]

Hello,

No, the number is right.
Here some Fotos.

[JBL 4645]

Oh I see says the blind man. No wonder I couldn’t find a single picture on Google image. That does look nice…

VLF
LF
HF
VHF

Nice.:)

So you’d be looking for a pdf file to read the technical specifications on the JBL 4756A.

Found these other sites where there’s a discussion going about JBL loudspeakers and JBL 4756A.

http://translate.google.com/translate?hl=en&sl=zh-CN&u=http://www.bbs01.com/viewthread.php%3Ftid%3D4064%26page%3D1&sa=X&oi=translate&resnum=1&ct=result&prev=/search%3Fq%3DJBL%2B4756A%2Bpdf%2B%26hl%3Den (http://translate.google.com/translate?hl=en&sl=zh-CN&u=http://www.bbs01.com/viewthread.php%3Ftid%3D4064%26page%3D1&sa=X&oi=translate&resnum=1&ct=result&prev=/search%3Fq%3DJBL%2B4756A%2Bpdf%2B%26hl%3Den)

http://translate.google.com/translate?hl=en&sl=de&u=http://www.pa-forum.de/phpBB/viewtopic.php%3Fp%3D482429%26highlight%3D%26sid%3D 87fe09da77df8320a39b7a167152f7ba&sa=X&oi=translate&resnum=1&ct=result&prev=/search%3Fq%3DJBL%2B4756A%2B%26hl%3Den (http://translate.google.com/translate?hl=en&sl=de&u=http://www.pa-forum.de/phpBB/viewtopic.php%3Fp%3D482429%26highlight%3D%26sid%3D 87fe09da77df8320a39b7a167152f7ba&sa=X&oi=translate&resnum=1&ct=result&prev=/search%3Fq%3DJBL%2B4756A%2B%26hl%3Den)
(http://translate.google.com/translate?hl=en&sl=de&u=http://www.pa-forum.de/phpBB/viewtopic.php%3Fp%3D482429%26highlight%3D%26sid%3D 87fe09da77df8320a39b7a167152f7ba&sa=X&oi=translate&resnum=1&ct=result&prev=/search%3Fq%3DJBL%2B4756A%2B%26hl%3Den)

[Hoerninger]

It seems to be a variant of a JBL4755A with two additional tweeters.
http://www.jblproservice.com/pdf/Sound%20Power%204700%20Series/4755A.pdf
The wiring diagram points out that the crossover is provided for two JBL2404H but they are not supplied.

The speakers are:

2 x 2206H (12 inch)
1 x 2445J
2 x 2404H optional
____________
Peter