Connect the Subwoofer to your Samsung Soundbar

Experience high-quality cinematic sound using the Subwoofer of your Samsung Soundbar. Your Subwoofer automatically connects to your Soundbar. If it does not appear so, you can also connect the Subwoofer manually. Follow the steps below to learn more. 

Image of HW-Q990C soundbar

Information Icon Please Note: The information on this page is for Australian products only. Models, sequences or settings will vary depending on location and/or where the product had been purchased. To be redirected to your local support page please click here.

How to Connect the Soundbar Power and Units

The Subwoofer is automatically connected to the Soundbar when it is turned on. Use the power cord to connect the Subwoofer and Soundbar to an electrical outlet in the following order. For more information about the required electrical power and power consumption, refer to the label attached to the product (usually located at the rear of the Soundbar).

Follow the steps below to learn how to connect your Subwoofer and Soundbar.

1 Connect the power cord to the Subwoofer
subwoofer power connect1
2 Then connect the power cord to the Soundbar
Connect power to soundbar

Note: Place the AC/DC adaptor on a flat surface such as a floor or table.

3 Turn on the Soundbar. The Subwoofer will be automatically connected
Connect soundbar to power
4 Check if the blue LED on the back of the Subwoofer lights up in solid blue. This means that the connection has been successfully established.

Note: If the automatic connection doesn’t work, follow the steps below to manually connect the units.

Subwoofer and Surround Speakers are automatically connected

For optimal listening performance, the following speaker layout is recommended. It is recommended that the areas around the wireless Subwoofer and surround speakers (available with selected models) locations are clear of any obstructions.

Speaker Layout

If you are having troubles with the automatic connection above, you can also manually connect the Subwoofers to your Soundbar. Follow the steps below to learn how.

1 Turn off the power of the Soundbar.
2 Press and hold ID SET on the rear of the Subwoofer for at least 5 seconds
rear subwoofer
3 Press the Up button on the remote control for 5 seconds
  • The ID SET message appears on the display of the Soundbar for a moment, and then it disappears.
  • The Soundbar will automatically power on when ID SET is complete.
Press ID Se
4 Check if the LINK LED is solid blue (connection complete). The LINK LED indicator stops blinking and glows a solid blue when a connection is established between the Soundbar and the Wireless Subwoofer, surround speakers.
Subwoofer and Surround Speakers are automatically connected
1 If there is no sound from the Subwoofer speaker:
  • If the volume of the Soundbar is too low or muted, adjust the volume.
  • When any external device (STB, Bluetooth device, mobile device, etc.) is connected, adjust the volume of the external device.
  • For the sound output of the TV, select Soundbar (Samsung TV: Settings → Sound → Sound Output → Select Soundbar).
  • The cable connection to the Soundbar must not be loose. Remove the cable and securely connect it again.
  • Remove the power cord completely, reconnect it and turn the power on.
  • Initialise the product and try again.  
2 The Subwoofer volume is too low:
  • The original volume of the content you are playing may be low. Try adjusting the Subwoofer level using the Soundbar remote.
  • Bring the Subwoofer speaker within 3 metres of the Soundbar. Some Subwoofer speakers may not have a strong enough signal to work far from the Soundbar.
  • Note: Subwoofers are a type of speaker that boost the lowest frequencies (base) in the audio you listen to.
3 Sound jitter, delays or noise from the Subwoofer:
  • If there are any objects between the Soundbar and Subwoofer speaker, it could cause a problem. Please reposition these to a place without such an object.
  • There may be sound jitter or delays when the Subwoofer and Surround Speaker are far away from the Soundbar. Please place them near the Soundbar.
  • There may be sound jitters or delays when the Soundbar is near an instrument or electrical device that can cause radio interference. Place the Soundbar far away from such devices that can cause radio interference (e.g. wireless router).
  • Change the TV network connection status from wireless to wired. 

Troubleshooting by LED Indicator Lights

Troubleshooting by LED Indicator Lights





Blue light on LINK Indicator


Successfully connected

(normal operation)



Recovering the connection

Check to ensure that the power cable that is attached to the main soundbar unit is connected properly or wait about 5 minutes. If the blinking persists, try manually connecting the subwoofer.

Red light on STANDBY Indicator


Standby (with the soundbar main unit turned off)

Check if the power cable that is attached to the main Soundbar unit is connected properly.

Connection failed

Connect again. See the instructions for manual connection.

Red and blue light on LINK and STANDBY indicator



See the contact information for the Samsung Service Centre.

For further assistance, please contact our Chat Support or technical experts on 1300 362 603. To find your Samsung product's User Manual, head to Manuals & Downloads.