JBL 2445J Polarity

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Pro studio recording equipment and music production/industry.

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I just bought a pair of 2445j drivers and I'm not sure if the diaphragms are original or not. My question is, (if anyone can help me) Is there a way to check polarity on horn drivers like placing a nine volt on a woofer and seeing if it moves in or out? I know JBL is black for positive on these models, but if the diaphragm has been replaced(or even if its orig)it has a red positive on the diaphragm itself, is that actually positve or what? Thanks for any help you can give me.
PJ

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Topic - JBL 2445J Polarity - pjdrummer 18:43:30 07/17/03 (4)

this is from JBL's website... - gonefishin 13:38:12 08/01/03 (0)

Only with a microscope. - Bill Fitzmaurice 12:00:57 07/18/03 (0)

Re: JBL 2445J Polarity - Centauri 06:32:55 07/18/03 (1)

Re: JBL 2445J Polarity--Polarity - Speaker Repair of California 10:24:13 10/26/03 (0)

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