What to do if woofer is not working?
Emily Sparks
Published Mar 19, 2026
What to do if woofer is not working?
What to Do When the Subwoofer Isn’t Working Properly
- Check connections and speaker wires.
- Check outlets, power cable, and fuse.
- Check system and menu settings.
- Verify connections, turn on the subwoofer, and set the volume.
What should I do if my subwoofer is not working?
Set the volume on the back of the active subwoofer to the middle position. If the subwoofer has a cut off frequency adjustment, set it to the maximum position to pass all low frequencies to the subwoofer. If your subwoofer has a standby function, turn it off.
How can I tell if my Sony subwoofer is still on?
In this case, set the sound field setting to A.F.D. AUTO or a another sound field. Sony® receivers will send a simulated LFE signal to the subwoofer and the SW indicator will light up. Verify the subwoofer power cord is plugged into an active AC outlet and that the subwoofer is powered on.
Why do I not get thumping sound from my subwoofer?
If you do not hear a thumping sound then there is a possible service issue with the subwoofer. Connect the other end of the subwoofer cable to the subwoofer audio output connector on the back of the receiver. NOTE: Some receiver models may have two outputs to drive two subwoofers.
How do you turn off an Active Subwoofer?
In that case, you will need to purchase an active subwoofer. Set the volume on the back of the active subwoofer to the middle position. If the subwoofer has a cut off frequency adjustment, set it to the maximum position to pass all low frequencies to the subwoofer. If your subwoofer has a standby function, turn it off.
What do I do if my subwoofer won’t turn on?
If your subwoofer has a standby function, turn it off. Connect one end of the audio cable to the subwoofer audio input connector. Very lightly tap on the center conductor of the other end of the cable. If the subwoofer is powered on and adjusted properly, you should be able to hear a thumping sound on the subwoofer.
In this case, set the sound field setting to A.F.D. AUTO or a another sound field. Sony® receivers will send a simulated LFE signal to the subwoofer and the SW indicator will light up. Verify the subwoofer power cord is plugged into an active AC outlet and that the subwoofer is powered on.
If you do not hear a thumping sound then there is a possible service issue with the subwoofer. Connect the other end of the subwoofer cable to the subwoofer audio output connector on the back of the receiver. NOTE: Some receiver models may have two outputs to drive two subwoofers.
Do you need a power cord for a subwoofer?
Verify the subwoofer power cord is plugged into an active AC outlet and that the subwoofer is powered on. If the subwoofer does not have a power cord, then it is a passive subwoofer. In that case, you will need to purchase an active subwoofer. Set the volume on the back of the active subwoofer to the middle position.