Fix for SRH440 mechanical noise

Date Updated: April 2, 2019 FAQ #4680

1) One SRH440 owner reported success in eliminating a "creak" by spraying silicone lubrication (sold at hardware stores) on the moving joint.  Do not use oil of any type as oil can attack/soften/dissolve plastic.

2) Another SRH440 owner added felt pads to the ear cups.  See the photos below.