Skip to Content

Denon Subwoofer Not Working (How To Reset)

Black subwoofer on the floor

Designed to create low-frequency sounds while playing music, Denon subwoofers are of various types. And like any other electronic devices, they’re prone to failure. When your Denon subwoofer fails to function, try to understand the problem and see if you can solve it before visiting an electrician. Some common causes are power outages, damaged sockets and cables, blown fuse, short circuits, faulty driver magnet, and cone seal failure.

If your Denon subwoofer isn’t working, check the power supply, ensure that the cables are good and connected to the correct ports and that the socket has current. If all is fine, check the other parts that could be the culprit, like the fuse and driver magnet, and replace whichever part is faulty.

Power outage is the common issue with a Denon woofer not working and the most straightforward issue to solve. Always inspect your cables, sockets, and wire to see if they’re in good condition before you progress to check whether you’ve got a blown fuse, faulty driver magnet, or short-circuit hindering the signal from reaching your device if the whole subwoofers has blown out.

For any part needing replacement, ensure you follow the manufacturer’s instructions carefully to avoid further damage. Whenever you’re not sure or can’t figure out the problem, call a technician for professional help.

Denon Subwoofer Not Active

Black subwoofer on the floor

Denon subwoofers may become inactive for various reasons, the main one being blown subwoofers due to issues like too high volume and irregular power supply, i.e., too high or too little power. You can fix the issue by following the recommended steps. Before troubleshooting, ensure you have the appropriate tools, such as a multimeter, screwdriver, and glue.

If your Denon subwoofer is inactive, examine the voice coil for any damage. Then check if the speaker cone is in good condition, separate the speaker and scrutinize for defects, replace damaged parts into their accurate positions, then return the frame and test your subwoofer.

Use a multimeter to check the voice coil. If the voice coil resists, it’s in good condition, but if you don’t see any resistance on the multimeter, the voice coil of your subwoofer is damaged. For the speaker cone, test it by pushing it alongside the edges. If it sinks back, your speaker cone is fine, but if it remains unyielding, it needs to be fixed or replaced.

The troubleshooting steps should solve your issue. But if you complete the steps and the issue isn’t solved, professional service may be required. 

Denon Subwoofer Not Turning On

Black subwoofer on the floor

Having a Denon subwoofer that won’t turn on is as good as not having one; it just won’t serve you in any way. Once you face this problem, you need to figure out the root before you solve it and bring your speaker back to life. The causes of your speaker not turning on may range from simple power problems to having your whole subwoofer damaged.

If your Denon subwoofer fails to turn on, try changing the socket and power cables in case of a problem. If you fix all that and your device fails to function, the problem doesn’t involve the power supply alone. Try examining your whole subwoofer, including the cone seal, for any hitches.

Copyright protected content owner: and was initially posted on July 18, 2022.

A cone seal is required to allow air circulation at the right frequency in the subwoofer. With a failed cone seal, the air inside the subwoofer fails to circulate in all parts, thus causing lots of collisions. Collision destroys other parts and stops them from functioning, leading to issues like no power, low volume, not pairing, or even your subwoofer not starting.

When your whole subwoofer is destroyed, it automatically won’t function. Call an electrician to help you define the problem. Once it’s confirmed that your device is damaged beyond repair, consider replacing it with a high-quality one that’s strong enough to withstand any damage and last longer.

This article and its contents are owned by Ready To DIY and was first published on 07/18/2022.

Denon Subwoofer No Sound

Black subwoofer on the floor

If your Denon subwoofer fails to sound, there could be many causes. However, the main culprits you should be quick to look at are whether your subwoofer has gone on standby mode, the driver magnet is damaged, or a nearby interfering electronic device.

With a Denon subwoofer that has no sound, connect it to your receiver and increase the volume gradually while playing back some audio. That should wake your subwoofer from standby mode and give the sound. If not, examine it for a damaged driver magnet or switch off nearby electronic devices.

Some subwoofers have an auto-standby function that makes them switch on as soon as they receive a strong bass signal. If no or only a very weak signal is received after some time, the device spontaneously switches to standby mode, although the LED can still be on.

Nearby electronic devices may impede the sound transmission frequency, hence interfering with sound production. Turn off these electronics and test whether there’s a sound produced from your subwoofer.

 If the magnet attached to the cone is damaged, the magnetic poles linked to the electromagnet keep your Denon subwoofer from producing sound.

This article and its contents are owned by Ready To DIY and was first published on 07/18/2022.

Denon Subwoofer Not Pairing

Black subwoofer on the floor

The pairing procedure of your subwoofer and sound bar is usually at the factory. But if the communication is interjected, you can follow a few steps to get the pairing redone. If the pairing doesn’t go through, there could be an electrical problem.

Copyright article owner is for this article. This post was first published on July 18, 2022.

Whenever your Denon subwoofer isn’t pairing, check for an electrical connection hitch, start with all wires from the subwoofer to the socket, and tighten the loosely connected ones. Also, check if all cables are connected to the correct spots; if not, reattach them to their correct plugs.

Once you verify these connections, turn on your subwoofer and check the volume level. Starting at a low volume, gradually increase the volume to see whether the subwoofer is working.

Denon Subwoofer Cuts Out

Black subwoofer on the floor

An abrupt interruption on your Denon receiver may cut out the sound from the Denon subwoofer, and the interruption should be immediately fixed to avoid destructing the system. Receiver sound cut out can crop from problems like faulty wire connections, cables blow out, energy-saving function, overheating, or incorrect speaker size setting that may hinder the subwoofer from receiving signal.

To resolve the issue of a Denon subwoofer cut out, check if there’s any fault on your receiver connections and ensure your device is connected to a functioning AC outlet. You may also set off the power saving switch and fix the correct speaker size setting from the main unit’s set-up menu.

The energy-saving feature on your subwoofer powers off the amplifier if there’s no signal after a definite amount of time. If it’s the case, set off the power save switch to prevent the device from switching off by itself. If you’re using an active subwoofer, see that it’s connected to a functioning AC outlet. Avoid connecting it to an extension cord or power strip to decrease the possibility of an electrical short.

Overheating can interfere with the sound transmitted to the speaker, thus cutting off the produced sound. Turn off your device before the whole system gets damaged and try to troubleshoot the problem. Also, ensure you always have enough ventilation to eliminate any excess heat.

This article and its contents are owned by Ready To DIY and was first published on 07/18/2022.

Denon Subwoofer Humming

Black subwoofer on the floor

One of the annoying issues that can crop up in your Denom subwoofer is humming. The voltage difference between the subwoofer electrical ground and the equipment ground can cause the humming sound due to irregular current flow in the audio cable. Also, turning the volume too high can lead to a problem.

To solve a Denon subwoofer humming issue, check if it’s plugged into its outlet and plug it into an outlet shared by the other components. Disconnect the component cables one by one until it stops. If nothing helps, disconnect all subwoofers’ audio cables, then leave it plugged in and switched on.

A ground loop is an electric potential variation between different ground points in the system. Idyllically, all ground points consist of zero volts among them.

When there’s a ground loop problem, a low-frequency hum occurs as you plug any video or audio components, including the subwoofers, into an electric outlet. The hum comes from ground voltage, possible differences in system components, audio/video cables, and power cords.

While some people try to use a power conditioner to stop subwoofer hum, it mainly doesn’t help. Instead, try out the outlined steps to stop subwoofer hum.

How to Reset Denon Subwoofer

Black subwoofer on the floor

There comes a time when you experience a problem with your Denon subwoofer, which can only be solved by clearing all the current settings and resetting it back to factory settings. You just need to follow a few steps to reset your subwoofer.

When you want to reset your subwoofer, press the power button to turn on the soundbar. Press and hold down the power button while pressing the Input button and the volume button simultaneously until you see RESET on the front panel display, then unplug the power cord for about 30 seconds.

For HEOS by Denon woofers, there are two versions — HS1 (first generation) and HS2 (second generation). Each subwoofer is reset differently. So you first need to check which version you have. For HS1, there’s a reset button near the adapter connection, while HS2 has a Bluetooth button, which you identify by the Bluetooth logo.

ReadyToDIY is the owner of this article. This post was published on July 18, 2022.

Related Articles

Denon Soundbar Not Working (How To Fix/Reset)