Compressed Air
Soldering Iron
Solder
Sharp utility knife
Masking Tape
Double sided tape
Sharp scraping tool or Chisel
Two Component Epoxy or Rubber Type glue
Plastic Shims
Small weigh

http://www.bcspeakers.com/PDF/reconing.pdf - http://www.bcspeakers.com/PDF/reconing.pdf

 

 

 

Supplies and Tools Required:

- Screw driver

- Masking Tape

- Compressed air source

Step 1: Loosen the screws, remove the cap of the driver, holding the membrane firmly in place by the terminals.

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Step 2: Blow the entire area where the membrane sits, delicately with compressed air, in order to eliminate any metallic dust or fine grit

Step 3: Remove the defective membrane; pay attention that there is NOT a plastic shim between the diaphragm and the plate. If there is a shim, it is very important that this same shim be re-used when you replace the new membrane

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Step 4: Visually inspect the gap and make sure it is clean: if not, use a piece of masking tape to carefully clean all particles from the gap. This step is extremely important. The gap must be 100% free of any and all foreign matter

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Step 5: Place the new membrane in its center using the same shim you removed in step 3, when you disassembled the driver

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Step 6: Re-position the rear cap and tighten the screws

It is advisable, at this point, to do an acoustic test, to verify that you have installed the diaphragm properly:

Hook up the driver to an oscillator and an amplifier.
Conduct a sweep test from 200 Hz to 1000 Hz, applying 3 – 4 V rms. During the test you should not hear any noise or strange vibration; instead, you should hear a "clean" sweep sound. If not, it is possible that some particles of foreign matter were left in the gap. In that case return to step 4, and repeat the operation.