HDMI cable for ARC and eARC (Ultra High Speed)
One HDMI cable from the TV's ARC or eARC port to the soundbar carries the sound, and lets the TV remote control the soundbar's volume.
See the Belkin 8K HDMI 2.1 Cable (2 m) on AmazonHow can I make my TV sound better?
Last checked November 14, 2026
Short answer
Add a soundbar. Thin TVs have small speakers, and a soundbar gives clearer speech and fuller sound. One with HDMI eARC connects with a single HDMI cable and works with your TV remote.
Best matchSoundbar with HDMI eARC
See the Sonos Beam Gen 2 (Black) on AmazonYou also need
These go with the Soundbar with HDMI eARC.
How to connect it
- Check your TV has an HDMI port marked ARC or eARC.
- Choose a soundbar with HDMI eARC (or ARC). For clearer voices, pick one with a centre channel (3.1 or more).
- Connect them with an HDMI cable and turn on HDMI-CEC in the TV's settings.
Check this first
- Look for HDMI eARC (or at least ARC) on the soundbar, and check your TV has an HDMI port marked ARC or eARC.
- For Dolby Atmos, choose a soundbar that lists Atmos and connect it with HDMI, not optical.
- A separate subwoofer adds deep bass for films; a 3.1 or larger soundbar has a centre speaker that makes voices clearer.
- It also needs an HDMI cable, unless one comes in the box.
Questions people ask
Do I need a subwoofer?
Not for clear speech. A subwoofer adds deep bass, which makes films and games feel bigger.
What about Dolby Atmos?
Pick a soundbar that lists Atmos and connect it with HDMI ARC or eARC. Optical cannot carry Atmos.
Not your setup?
Tap what you have and we will find the right part.