Soundbar Setup with Roku Stick: Step-by-Step

Connecting a soundbar to your Roku Streaming Stick gives you clearer dialogue, deeper bass, and a more immersive TV experience without the complexity of a full AV receiver. This guide walks you through the physical connections, audio settings, and common pitfalls so you can get sound from your soundbar in about ten minutes.

What You’ll Need

Your soundbar with its power cable
The soundbar’s remote (or the buttons on the bar itself)
An HDMI cable (if your soundbar has HDMI ARC/eARC)
An optical cable (if your soundbar lacks HDMI ARC)
Your Roku Streaming Stick (HDMI model)
A TV with an HDMI port labeled “ARC” or “eARC” (for the best setup)
Wi-Fi network name and password (for initial Roku setup if not already done)

Step-by-Step

Identify your TV’s HDMI ARC port. Look on the back or side of your TV for an HDMI port labeled “ARC” or “eARC.” This is the port that can send audio back to the soundbar. If your TV doesn’t have ARC, you’ll use the optical connection instead.
Connect the soundbar to power. Plug the soundbar’s power cable into a wall outlet (not a power strip that’s already overloaded). Turn on the soundbar using its remote or the power button on the bar.
Choose your connection method:
- HDMI ARC (preferred): Plug one end of the HDMI cable into the soundbar’s HDMI OUT (or ARC) port, and the other end into the TV’s ARC-labeled HDMI port.
- Optical (no ARC): Plug one end of the optical cable into the soundbar’s OPTICAL IN port, and the other end into the TV’s OPTICAL OUT port. Remove the protective caps from the cable ends first.
Set the TV’s audio output. Using your TV’s remote, go to Settings → Audio (or Sound) → Output. Select “External Speakers” or “Audio System” if you used HDMI ARC. If you used optical, select “Optical” or “Digital Audio Out.” If you’re not sure, choose “Auto” if available.
Enable HDMI ARC (if applicable). On some TVs, you need to turn on “HDMI ARC” or “Anynet+ (CEC)” in the TV’s settings. This allows the TV remote to control the soundbar volume and lets the TV send audio to the soundbar. Look for CEC, SimpLink, or Bravia Sync—these are brand names for the same feature.
Plug in the Roku Streaming Stick. Insert the Roku Stick into any available HDMI port on the TV (not the ARC port, unless you have no other choice). If your TV has a USB port, you can power the Roku Stick from it, but a wall adapter is more reliable. If the Roku Stick is already plugged in, skip this step.
Set the Roku’s audio output. Turn on your TV and Roku. Go to Roku’s home screen → Settings → Audio → Audio output. Choose “Auto” or “Dolby Digital” if your soundbar supports it. For most setups, “Auto” works best. If you have a basic soundbar, choose “Stereo” to avoid audio dropouts.
Test the sound. Play a show or movie on Roku. You should hear audio from the soundbar. If not, check the TV’s volume is not muted and that the soundbar is set to the correct input (HDMI or Optical).
Adjust the soundbar settings. Use the soundbar’s remote to set the bass, treble, and any sound modes (e.g., “Movie,” “Music”) to your preference. If you used HDMI ARC, the TV remote should now control the soundbar volume. If not, re-check the CEC setting.

Common Mistakes

Plugging the Roku Stick into the ARC port. The ARC port is meant for the soundbar, not the streaming stick. If you plug the Roku into the ARC port, you may not get sound from the soundbar.
Not enabling CEC/ARC on the TV. Even if the HDMI cable is connected, the TV might not send audio to the soundbar until you turn on the ARC/CEC feature in the TV’s settings.
Using the wrong optical port. Some TVs have both optical in and out. Make sure you’re using the one labeled “OUT.”
Forgetting to change the TV’s audio output. If the TV is still set to “Internal Speakers,” you’ll hear sound from the TV, not the soundbar.
Leaving the soundbar on the wrong input. After connecting, cycle through the soundbar’s inputs (HDMI, Optical, Bluetooth) until you find the one that’s active.

Tips

Use a wall adapter for the Roku Stick. Powering the stick from the TV’s USB port can cause intermittent reboots, especially if the TV’s USB port doesn’t supply enough power.
Place the soundbar at ear level. Ideally, the soundbar should be directly below or above the TV, not inside a cabinet or behind a sofa. This improves dialogue clarity.
Update the Roku’s firmware. Go to Settings → System → System update to ensure your Roku has the latest audio fixes.
Use the soundbar’s remote for initial setup. Once everything is connected, you can often program the TV remote to control the soundbar, but it’s easier to use the soundbar’s own remote for the first test.
Try a different HDMI cable. Some older HDMI cables don’t support ARC. If you have issues, try a newer cable that says “High Speed” or “Premium.”

Troubleshooting

No sound from the soundbar at all.

Check that the soundbar is powered on and not muted.
Verify the correct input is selected on the soundbar (HDMI vs Optical).
On the TV, go to Settings → Audio → Output and select “External Speakers” or “Audio System.”
If using HDMI ARC, confirm the cable is in the port labeled ARC on the TV, and that CEC/ARC is enabled in TV settings.

Sound cuts out or is intermittent.

In Roku Settings → Audio, change the output from “Dolby Digital” to “Stereo.” This fixes most dropouts with older soundbars.
Try a different HDMI cable or a shorter optical cable.
Make sure the soundbar’s firmware is updated (check the manufacturer’s app or website).

TV remote doesn’t control soundbar volume.

Enable CEC on the TV (look for “Anynet+” on Samsung, “Bravia Sync” on Sony, “SimpLink” on LG).
On the soundbar, look for a setting called “TV remote control” or “HDMI control” and turn it on.
If using optical, the TV remote cannot control the soundbar volume; you’ll need to use the soundbar’s remote.

Roku Stick doesn’t turn on or keeps rebooting.

Use the included USB power adapter and plug it into a wall outlet.
Try a different HDMI port on the TV.
Check that the Roku Stick is fully inserted.

Soundbar works with TV apps but not with Roku.

This is rare, but it can happen if the Roku’s audio settings are set to “Auto” and the soundbar doesn’t support the format. Change Roku’s audio output to “Stereo” or “Dolby Digital” (whichever your soundbar supports).
Make sure the Roku Stick is not plugged into the ARC port.

Frequently Asked Questions

Q: Do I need the soundbar to support 4K or HDR?
A: No. The soundbar only handles audio. The video signal goes directly from the Roku Stick to the TV. As long as your TV supports 4K/HDR, you’re fine.

Q: Can I use Bluetooth instead of HDMI or optical?
A: Yes, but it’s not recommended. Bluetooth adds a slight audio delay (lip-sync issues) and may not support surround sound. Wired connections are more reliable.

Q: Why does my soundbar have an HDMI port that says “OUT”?
A: That’s the ARC (Audio Return Channel) port. It’s designed to receive audio from the TV. You connect it to the TV’s ARC port.

Q: What if my TV doesn’t have an ARC port?
A: Use an optical cable instead. It carries digital audio and works well, though you won’t be able to control the soundbar volume with the TV remote.

Q: Can I connect the Roku Stick to the soundbar instead of the TV?
A: Only if your soundbar has an HDMI input (not just ARC). Some soundbars have a pass-through port. If so, connect the Roku to the soundbar’s HDMI IN, then the soundbar to the TV’s ARC port. Check your soundbar’s manual.

Q: Why is the sound out of sync with the picture?
A: This is usually caused by the TV’s audio processing. On the TV, look for an “Audio Delay” or “Lip Sync” setting and adjust it. On the soundbar, try a different sound mode.

General steps for current mainstream versions; menus can differ by device and version. See the disclaimer or report an error.

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