How To Test Fusion® Speakers with a Digital Multimeter

When troubleshooting a Fusion® speaker or subwoofer, resistance may need to be tested to check for shorts or connection issues with the speaker. This will require a multimeter.

1. Turn off to the Fusion system including power the stereo and any external amplifiers
2. Disconnect the speaker or subwoofer from the stereo or external amplifier
3. Set the digital multimeter to measure resistance, or Ω Ohms
4. Touch the negative and positive probes directly to the speaker or subwoofer terminals
5. Allow the multimeter to read and settle on a steady reading

The result should be within range of the speaker or subwoofer specified resistance. For 4Ω speakers this would range between approximately 3.4Ω - 4Ω, for 2Ω speakers this would range between approximately 1.7Ω - 2Ω. If the reading is drastically outside of these ranges, or the digital multimeter reads an Open Line, that would indicate either a short (reading too low) or broken connection (reading too high) within the speaker or subwoofer. In either of these cases the speaker or subwoofer will need to be replaced.