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Need help?Do you have a question about the JBL JBLMR18.3 and is the answer not in the manual?
General| Weatherproof | Yes |
|---|---|
| Peak Power | 180W |
| Power Handling (RMS) | 50W |
| Power Handling (Peak) | 180W |
| Impedance | 4 Ohms |
| Mounting Cutout Diameter | 3.0" (76mm) |
Verify red/yellow leads to 12V+, black ground wire, and fuse integrity.
Ensure battery voltage and check for loose/corroded ground connections.
Check voltage under load and test battery/power supply if voltage is inconsistent.
Inspect harness connections for looseness, especially while the vehicle is moving.
Check buttons for sticking and ensure knobs click properly.
Reset the radio and test the infrared eye for interference.
Inspect remote connections for corrosion and water intrusion.
Ensure amplified antenna connection, avoid coiling wire, check RFI/EMI proximity.
Inspect antenna for tears, avoid coiling wire, check RFI/EMI proximity.
Adjust balance settings and ensure AUX device volume is turned up.
Check speaker wire routing, insulation, and avoid combining wires.
Check for good ground and clean power connections at all points.
LED lighting can cause fluctuating FM/AM audio.
