Before you decide to remove and replace a supposedly bad subwoofer, run through these quick steps (similar to when a stereo system stops making sound) to diagnose and fix the problem. What’s the worst case scenario? You might be shopping for a new speaker system.
Amplifier turns on but produces no sound – CAR AUDIO TIP!!
Before you begin, make sure all of your equipment is turned off, including the subwoofer. You never want to plug or unplug any cables while something is running, or you could accidentally damage something.
Check connections and speaker wires. Starting at the subwoofer, check all wires and connection points that run to amplifiers, receivers, or speakers. Make sure the wires are securely connected and plugged into the correct locations.
The inputs on the back of the subwoofer are generally connected to the subwoofer outputs on the back of receivers or amplifiers. If the subwoofer is connected to speaker outputs on the receiver or amplifier, check the entire length of the wire connections for defects. If any of the wires appear frayed, torn, or damaged, replace those wires before attempting to use the equipment again. Perform a quick test on the wires to make sure they are working.