Velodyne SubContractor SC-IF Installation Manual page 11

Step 10 -
Complete installation. Install the decorative grille and perform any other tasks needed to
complete the installation based on chosen woofer positioning. It is recommended to use
caulking to secure the decorative grille to prevent buzzing and rattling.
Figure 7: Finished installation with register
Step 11 -
Check for rattles and buzzes. Use aggressive bass material and check the subwoofer for buzzes
and rattles. These can come from inadequate use of the foam strips, or there may be
sympathetic vibration in the structure due to the powerful nature of the SC-IF/IC. In the latter
case, track down the rattle and secure it with caulking or other similar material.
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SC-IF/IC User's Manual