Corrective maintenance
2.
Visually inspect the diaphragm and the voice coil.
If any damage is visible, replace the diaphragm.
3.
Clean the air gap thoroughly.
Use double-face adhesive tape to remove any particles.
4.
Perform the diaphragm reassembly procedure.
Pay close attention to the number of shims and the position of the diaphragm.
Apply the recommended torque.
5.
Repeat the listening test.
If a buzzing sound is still audible, it might be necessary to add an extra shim on the air gap.
If the problem persists, replace the driver.
K1 user manual (EN) version 6.0
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