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oldsiralan
03-08-2013, 03:37 PM
I have a pair of 2440's used in a PA system for some years. At some point one of the bolts holding the back cover was lost and replaced with a hardware store bolt.

I'm assuming that the only place to find these, if they exist, will be at JBLpro? I can take hardware store bolts and turn the head down fairly easily.

I also have a pair of 375's with the original diaphragm; the 2440's have 2441, probably aftermarket, diaphragms (pleated surround).

Mike Squires

Lee in Montreal
03-08-2013, 05:02 PM
Phillips Fillister #10-32 UNF x 2"

Depending on the supplier, you may have to slightly grind the head

oldsiralan
03-08-2013, 07:57 PM
Thanks for the info.

Mike Squires