how can i open 2440 drivers ????

[MatthiasA]

Hello!

yesterday i got 2 2440 mounted on 2380A Horns + two E140 drivers

one of the 2440 souns not clearly enough ........
now i tried to open this 2 " driver...
i opend the 4 screws back but i cannot open this thing ?????

greetings mathias

[Alex Lancaster]

Make sure the bolts are out all the way, gently tapping the back cover with a plastic or rubber mallet (sideways), and prying with a sharp knife should do it, I hope.

[MatthiasA]

ok thanks a lot i opened it !

[Maron Horonzakz]

That looks like a 2441 diaphram.

[Earl K]

That looks like a 2441 diaphram.

Yep, it sure does .

- MatthiasA, don't leave that back cover off for too long. That magnet is so strong , it'll attract dust-borne metallic particles onto the top-plate . Plus, accidents do happen .

- You've been advised in the past to watch screw-drivers in the magnet area. It's worth repeating again . The 2440 magnet is way stronger than the 2426 / so watch the screw-driver , it can swing right into that diaphragm with a dendulum motion , if you don't watch your grip. And a replacement diaphragm from JBL must be worth around $300.00 in Europe . Ouch !

<> EarlK

[John]

Looking at the face of the dome makes me want to agree that it is a 2441? But looking at the double solid brass colored material below the plastic dia. frame makes me wonder??? I thought all the 2441 dia. had a square washer below every mounting screw and the 2445 had the solid metal bands below the plastic frame????