Fix LG Soundbar Subwoofer Cutting Out Issue – (It’s Easier Than You Think!)

If your LG soundbar subwoofer cutting out, we have found the guaranteed-to-work solution!

The persistent disruptions in the LG subwoofer’s bass output are often caused by an unstable soundbar connection or audio misconfiguration.

This guide will help you uncover the exact causes of the problem and restore the proper functionality of the subwoofer in under 5 minutes.

If the LG subwoofer is cutting out persistently, move it closer to the soundbar, perform a hard reset on both devices and re-pair the subwoofer.

If the problem persists, eliminate existing wireless interference and factory reset the soundbar.

There’s much more, so stay until the end!

Why is My LG Soundbar Wireless Subwoofer Cutting Out?

Here’s what can cause the LG subwoofer’s bass to persistently cut out:

Let’s fix the problem, shall we?

LG Soundbar Subwoofer Cutting Out – [Solved in 6 Steps]

Quick Tip: Try playing different songs/media to check whether the cutting out will stop!

1. Shorten the Wireless Proximity

The first step is to shorten the distance between the soundbar and the subwoofer to improve the subwoofer reception and strengthen the connection.

So, placing the subwoofer outside or on the edge of the soundbar’s Bluetooth radius may cause the device to cut out persistently or unpair.

What is the Best Wireless Distance?

For an optimal connection, the LG subwoofer should be within 8–10 ft (2.4m–3.0m) away from the soundbar at all times.

You can place the subwoofer anywhere within that range, as long as there are no physical obstructions or potentially interfering devices that may interrupt the signal.

To test the subwoofer’s connection, ensure it is paired to the soundbar and slowly start moving it away.

Then, pick a position for the subwoofer where the audio output is smooth and doesn’t cut.

If the cutting-out continues, keep reading…

2. Hard Reset the Subwoofer Setup

You can address faults with the LG equipment’s audio broadcast by performing a hard reset on both the soundbar and subwoofer.

You can achieve the hard reset of any electronic device by suspending the hardware’s power supply for a prolonged period and then reconnecting it back.

Let’s start with a hard reset on the LG subwoofer first!

How to Hard Reset the LG Subwoofer Unit?

1. Unplug the supplying cord from the back of the subwoofer.
2. Next, disconnect the other end from the electrical wall outlet.
3. Wait for 60 seconds and reconnect the cable on both ends.
4. Finally, check if the subwoofer will reconnect to the soundbar.

How to Hard Reset the LG Soundbar Unit?

1. Hold the “Power” button on the top of the LG soundbar.
2. After the soundbar powers off, unplug it from the power.
3. Wait for 45–60 seconds while the LG unit is discharging.
4. Reinstall the power cord on both ends and test the device.

You can track the LG soundbar power state through the LED indicator on the top or front panel.

Once the soundbar is ready to connect, the display will show a “READY” message to confirm it.

Tip: Cycle through the LG soundbar’s modes if you wish to convert to a wired connection!

3. Eliminate Any Wireless Interference

The subwoofer’s signal may be actively suppressed by a nearby interference source, causing persistent cuts in the bass output.

Although the Bluetooth wavelength is a radio frequency, the LG subwoofer’s signal may also be susceptible to infrared interference in particular situations.

Here’s how to solve wireless interference caught up by the subwoofer:

• Position network devices (routers, modems) away from the subwoofer.
• Verify no nearby Bluetooth devices are transmitting radio wave signals.
• Devices emitting cellular signals or functioning on a similar wavelength.

Now, let’s review the difference between IR interference and RF interference!

What Causes IR (Infrared) Interference?

• Strong light sources, such as ambient, sunlight or bright indoor light.
• Solid obstacles, such as furniture, walls, or mirrors can reflect the IR.
• Electromagnetic interference, is caused by other electronic appliances.

What Causes RF (Radio Frequency) Interference?

• Ovens or microwaves, emit electromagnetic radiation.
• Wi-Fi routers or modems close to the LG subwoofer unit.
• Cordless phones or baby phones, emit an RF signal.

If no interfering sources are near your subwoofer, but the audio keeps cutting out, keep reading!

4. Reprogram the Subwoofer to the Soundbar

If the LG soundbar subwoofer keeps cutting out after making sure there is no interference, your next step is to re-pair the subwoofer.

All LG subwoofers are designed to connect automatically with the registered soundbar by default, but this can be done manually, which is more effective.

How to Enable Subwoofer “Pairing” Mode?

If the subwoofer is already paired to the soundbar, the LED indicator on the front should be solid green.

So, to unpair the device, unplug it from power or press the “PAIRING” button on the back once, until the rear LED goes off or flashes once.

To activate the pairing mode, hold the “PAIRING” button for 5 seconds until the indicator on the front light starts flashing green rapidly.

Next, wait until the soundbar is connected automatically.

Note: The devices will pair automatically as long as they are within wireless range!

5. Change the Wi-Fi Frequency Channel

The subwoofer signal can also be congested by an improper selection of the 2.4 GHz or 5 GHz wireless channel specified in the GUI settings of the router.

Hence, the next step is to alter the frequency channel broadcasting the Wi-Fi and check if your subwoofer’s reception will improve.

Let’s first learn how to access the network router’s GUI settings!

How to Access the Router GUI Settings?

1. Find the router’s default gateway value on the bottom panel.
2. Next, connect a PC or mobile device over Ethernet or Wi-Fi.
3. Paste the default gateway into the browser and then search.
4. At the login page, use “admin” for username and password.
5. Once signed in to the GUI, navigate to “Network” or “Home.”

How to Change Router’s Wi-Fi Frequency?

1. Navigate to the “Network” or “Advanced” tab in the settings.
2. Find the menu allowing you to change the “Wi-Fi Frequency”.
3. Set your network to 2.4 GHz and reconnect your LG devices.

Note: If you already have 2.4 GHz Wi-Fi, connect your audio equipment to it, without making changes in the router’s settings.

6. Reset Your LG Soundbar to Default

If your LG subwoofer is cutting-out the problem might be coming from the soundbar, so the next step is to perform a factory reset.

Well, restoring the soundbar to factory settings will erase all manually applied wireless and audio configurations, prompting you to set up the device initially.

Note: The subwoofer will unpair from the soundbar after completing the reset!

How to Factory Reset LG Soundbar With Remote?

1. First, ensure the LG soundbar is plugged in and powered on.
2. Hold the “Volume Down” and “Sound Effect” remote buttons.
3. After the “BT READY” prompt shows up, unplug the soundbar.
4. Then, wait for up to 45 seconds and reconnect the power cord.
5. Press the “PAIR” button on the subwoofer to reconnect the unit.

How to Factory Reset LG Soundbar Without Remote?

1. Hold the soundbar’s “Power” button for 10–15 seconds.
2. Unplug the soundbar’s power cable from both connectors.
3. Disconnect all external devices from the soundbar’s rear.
4. Wait for 3–4 minutes while the soundbar finishes resetting.
5. Reconnect your device power cable and all external cables.

Warning: None of the LG soundbar or subwoofer’s data will persist through the factory reset!

Quick Recap

You can fix the LG soundbar subwoofer cutting out problem by moving both devices closer to each other, performing a hard reset, and completing the pairing process from scratch.

If the fault persists, reconnect the setup to the 2.4 GHz Wi-Fi or factory reset the LG soundbar.

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