Polkaudio AMC‑PSW505U is a 12″ powered subwoofer featuring a 300 W RMS amplifier and a slot‑loaded enclosure designed to reduce port turbulence. Common failure points for this class of unit include blown speaker drivers, overheating or tripped power supply fuses, and degraded crossover components due to moisture ingress. First‑check diagnostics: verify the 120 V/240 V input is present and stable; inspect the internal amplifier board for burnt capacitors or signs of heat damage; visually examine the woofer cone and surround for cracks or excessive wear, and test the output terminals with a multimeter for continuity.[oss-gpt-20b] |
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Polkaudio AMC-PSW505U Powered SubwooferIndustrial Electronic Repair
145 Rockwell Place Ct
Tobaccoville, NC 27050
🚑 Rush repair shipments only — no walk-ins.
Industrial Electronic Repair
931-E S. Main St #204
Kernersville, NC 27284
📦 Mailing Address (for invoices or shipped repairs)
No walk-ins accepted.