Subwoofers
Error codes, troubleshooting, and maintenance information for subwoofers.
Last updated: 2026-02-25
Troubleshooting
View all →Common Failure Modes
Plate amplifiers fail more often than the driver itself due to heat and vibration. Surround foam can rot after many years of use.
Maintenance
View all →Check driver cone and surround
Inspect the woofer cone and rubber surround every 6 months for cracks, tears, or foam deterioration. Degrading surrounds cause rattling and air leaks that reduce bass output significantly.
Clean port tube and cabinet
Vacuum the port opening and surrounding area monthly. Ported subwoofers collect dust inside the cabinet that can rattle at high volumes. Wipe the cabinet with a damp cloth to prevent buildup.
Re-calibrate crossover and placement
Run room correction software annually or after any room changes. Optimal placement is typically corner-loaded or along a wall. Re-check phase alignment with main speakers for best integration.
Tighten Screws
Deep bass vibrations loosen the screws holding the driver to the cabinet. Retightening prevents rattling.
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