The fastest way: HDMI ARC or eARC
Most Vizio soundbars connect to your TV through a single HDMI cable plugged into the HDMI ARC port on your TV. ARC stands for Audio Return Channel — it sends sound from the TV back to the soundbar through the same cable that carries picture to the TV. This is the simplest setup because you use one cable instead of two, and the soundbar controls volume from your TV remote.
Find the HDMI ARC port on your TV first. On most Vizio TVs made in the last five years, it is labeled HDMI 3 or HDMI 4, and the label says "ARC" or "eARC" next to it. Plug one end of an HDMI cable into that port and the other end into the HDMI input on the back of your soundbar. Power on both devices. The soundbar should light up and show it is connected within a few seconds.
If your TV remote does not control the soundbar volume after you plug it in, go into your TV's settings menu, find Audio or Sound, and look for an option called HDMI ARC or CEC. Turn it on. This tells your TV to send commands to the soundbar through the HDMI cable.
Key Takeaways
- HDMI ARC is the easiest connection method and uses a single cable from your TV's ARC port to the soundbar's HDMI input.
- If HDMI ARC does not work, check that your TV's HDMI ARC setting is turned on in the audio or sound menu.
- Optical cable is the backup option if your TV has no HDMI ARC port or the HDMI connection fails.
- Bluetooth pairing works for wireless connection but requires manual volume control and may drop the signal if you move the soundbar far from the TV.
- After connecting, test the sound by playing a show or movie to confirm audio is coming from the soundbar, not the TV speakers.
Using an optical cable if HDMI ARC is not available
If your TV does not have an HDMI ARC port, or if HDMI ARC is not working after you turn on CEC, use an optical cable instead. This is a thin cable with a small square connector on each end. Plug one end into the optical audio output on your TV (usually labeled S/PDIF or Optical Out) and the other end into the optical input on the back of the soundbar.
Optical cables carry sound only, not picture, so you still need an HDMI cable from your cable box or streaming device to your TV. The soundbar will power on and begin playing sound from the TV within a few seconds. Volume control from your TV remote will not work with an optical connection — you will need to use the soundbar's remote or the Vizio remote app on your phone to adjust volume.
Connecting by Bluetooth if you prefer wireless
Vizio soundbars can pair with your TV over Bluetooth, though this is less reliable than HDMI or optical because the signal can drop if you move the soundbar too far away or if other wireless devices interfere. Use Bluetooth only if your TV has no HDMI ARC port and no optical output, or if you want to use the soundbar in a different room.
To pair, press and hold the Bluetooth button on the soundbar (usually on the back or side) until the light blinks blue. On your TV, go to Settings, then Sound or Audio, then Bluetooth, and select the soundbar from the list of available devices. The light should turn solid blue when pairing is complete. You will need the soundbar remote to control volume because your TV remote cannot send commands over Bluetooth.
Turning off TV speakers so you hear only the soundbar
After you connect the soundbar, your TV speakers may still play sound at the same time, creating an echo or muddled audio. Go into your TV's Settings menu, find Sound or Audio, and look for Speaker or TV Speaker. Change it to Off or External Speaker. This tells the TV to send all sound to the soundbar and silence the built-in speakers.
If you cannot find this setting, try going to Settings, then Audio, then Audio Output, and select Soundbar or HDMI ARC from the dropdown menu. The exact name and location of this setting varies by TV model and year, but it is always in the audio section of settings.
Testing the connection and troubleshooting common problems
Play a show or movie on your TV and listen for sound coming from the soundbar, not from the TV itself. If you hear nothing from the soundbar, check that the cable is plugged in firmly on both ends. Unplug it, wait five seconds, and plug it back in. Power off both the TV and soundbar, wait 30 seconds, and turn them back on.
If the soundbar still does not play sound, try a different HDMI cable. Some cables are damaged or do not support ARC even though they look normal. If a different cable works, the original cable is the problem. If the soundbar still does not work with a new cable, switch to an optical cable instead — optical is more forgiving of connection problems and works on almost every TV.
If the soundbar plays sound but your TV remote does not control the volume, go back to Settings and make sure HDMI CEC or ARC is turned on. If it is already on, turn it off, wait 10 seconds, and turn it back on. This resets the connection between the TV and soundbar.
Connecting a Vizio soundbar to a non-Vizio TV
Vizio soundbars work with any TV brand — Samsung, LG, Sony, TCL, and others — as long as the TV has an HDMI ARC port or an optical audio output. The connection steps are identical. The only difference is that your TV remote will not control the soundbar volume unless your TV supports HDMI CEC, which most modern TVs do.
If your TV is older than 2015 and has no HDMI ARC port and no optical output, you can still use the soundbar with Bluetooth, but you will lose the ability to control volume from your TV remote. In this case, consider upgrading to a newer TV or using a streaming device like a Roku or Apple TV that has optical or HDMI ARC output.
Frequently Asked Questions
Can I use the soundbar with a cable box or streaming device instead of the TV?
Yes. Plug an HDMI cable from your cable box or streaming device directly into the soundbar's HDMI input, then plug another HDMI cable from the soundbar's HDMI output into your TV. This way, the soundbar sits between your device and your TV and controls all the audio. Not all Vizio soundbars have HDMI output, so check your model's manual first.
Why is there a delay between the picture and the sound?
This is called lip-sync delay and usually happens with optical cables or Bluetooth. Go to your TV's Settings, find Audio or Sound, and look for Lip Sync Delay or Audio Delay. Increase the number by small amounts (usually 50 to 100 milliseconds at a time) until the sound matches the picture. HDMI ARC rarely has this problem.
Do I need a special HDMI cable for ARC?
No. Any standard HDMI cable works for ARC. You do not need to buy an expensive "ARC cable" — a basic cable costs a few dollars and works just as well. The only requirement is that both your TV and soundbar have HDMI ARC ports.
What if my soundbar has no HDMI input?
Older Vizio soundbars may have only optical and Bluetooth inputs. Use an optical cable from your TV to the soundbar, or pair the soundbar over Bluetooth. Both methods work, but optical is more stable and does not drain the soundbar's battery if it has one.
Can I connect two soundbars to one TV?
No. Your TV can send audio to only one device at a time through HDMI ARC or optical. If you want sound in multiple rooms, use Bluetooth to pair a second soundbar, but only one will play at a time — you will have to switch which device is connected.