Considering this, why did my subs suddenly stop working?
The most common cause of speaker failure is short-circuiting. A short circuit in the wires providing the signal will prevent the signal from ever reaching the subwoofer. A short circuit at the terminals on the subwoofer will also prevent electrical current and signal from reaching the subwoofer.
Subsequently, question is, how can you tell if a sub is blown? Test the sound at a low volume to listen for whether your sub has been blown. If it is distorted, you have a partially blown subwoofer, and if there is no sound at all, it is completely blown. If the subwoofer is receiving its signal via a cable, then check the cable before rushing to conclusions.
Furthermore, why did my subs turn off?
If this is the case, set the Power Save switch to the OFF position to prevent the subwoofer from turning off by itself. Check the cables or speaker wires for proper connection between the subwoofer and the main unit. If the speaker size setting is incorrect, the subwoofer may not be receiving any signal.
Why is my car Sub not working?
If the remote turn-on wire doesn't have power, your amp won't turn on. If it doesn't, you'll want to check for any inline fuses and verify that the wire isn't loose, corroded, or shorted out somewhere. If the remote and power wires both check out okay, the next thing to look for is continuity on the ground wire.
