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General| Brand | Pyramid |
|---|---|
| Model | Super Blue PB440X |
| Category | Car Amplifier |
| Language | English |
Check ground, remote DC terminal, battery power, and fuses for power issues.
Diagnose noise by disconnecting RCA inputs and testing components.
Check speaker leads for shorts and volume settings if Protection LED is on.
Verify speaker impedance, check for shorts, and ensure adequate airflow.
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