How to Pick a Soundbar | Match Your TV First

Picking a soundbar starts with checking your TV’s HDMI ARC or eARC port, then matching channel count to your room.

The biggest mistake people make when picking a soundbar is choosing one before checking what their TV can actually connect to. A great soundbar does nothing if your TV can’t feed it audio properly. The good news: the decision gets simple once you verify one port and settle on a channel count that fits how you watch.

Verify Your TV’s ARC or eARC Port First

Before anything else, look at the back of your TV for an HDMI port labeled ARC or eARC. Sony’s support documentation says the most reliable setup is HDMI ARC/eARC when both the TV and soundbar support it. Samsung’s buying guide for US shoppers agrees: HDMI is preferred over optical because it delivers the highest-quality sound and the most seamless compatibility.

Here’s the catch most people miss: not every HDMI port does ARC. Only the labeled one usually works, and some TVs have just a single ARC-capable port. If your TV has no HDMI ARC/eARC and no optical output at all, Sony’s guidance is blunt — that TV is not recommended for soundbar connection.

Buying rule: if your TV lacks both ARC/eARC and optical, a soundbar is the wrong upgrade. You’d need a different TV or an external audio extractor instead.

Channel Count: Match It To Your Room And Habits

Channel count describes how many speakers a soundbar packs. A 2.0 bar has left and right channels. Add a wireless subwoofer and it becomes 2.1. Add a dedicated center channel for dialogue and it becomes 3.0 or 3.1.

• 2.0 or 2.1: enough for most people in small to medium rooms who want better TV sound than the built-in speakers.
• 3.0 or 3.1: the practical minimum if dialogue clarity is your priority — the center channel anchors voices to the screen.
• 5.1 or higher: only worth the money if you watch a lot of surround-encoded movies and have the room layout to place rear speakers properly.

For most viewers, a 3.1 or even a solid 2.1 system beats a pricier 5.1 bar squeezed into a room that can’t spread the sound out. A center channel improves dialogue more per dollar than almost any other feature.

Set It Up Correctly: ARC Steps And Placement

Once you own the right bar, the setup takes five steps. Sony’s official procedure for connecting a soundbar to a TV via HDMI ARC runs like this:

1. Connect the TV’s ARC/eARC HDMI port to the soundbar’s HDMI OUT (TV ARC/eARC) port.
2. Select the soundbar’s ARC/TV audio input mode using its remote or source button.
3. Set the TV speaker output to Audio System, Receiver, or External Speakers in the TV’s sound settings.
4. Enable HDMI-CEC (sometimes listed as Control for HDMI) so the TV remote controls soundbar volume.
5. Set eARC to Auto or On when the TV supports it.

If one device supports eARC and the other only ARC, Sony says the connection usually still works — just without full eARC capability. Optical is the fallback when ARC/eARC is unavailable, but it can’t carry the highest-quality audio formats.

Placement matters as much as wiring.

Once the system is running, most people notice the difference within minutes — dialog snaps into focus, and you stop reaching for the remote to rewind lines you couldn’t hear. If you’re shopping in the compact category, our tested roundup of the best 20 inch soundbar options covers models that fit smaller TVs and tighter shelves.

FAQs

Is optical or HDMI better for a soundbar?

HDMI ARC/eARC is the better connection when both devices support it. It carries higher-quality audio formats and enables volume control through a single remote. Optical works as a fallback for older TVs, but it lacks the bandwidth for advanced formats and often requires a second remote.

Will any HDMI cable work for eARC?

Standard high-speed HDMI cables generally handle eARC, but the labeled ports on both the TV and soundbar must be used. A cheap or damaged cable can cause dropouts. If audio cuts out, swap the cable before assuming the soundbar is faulty.

Do I need a subwoofer for a soundbar?

A subwoofer adds bass for movies and music, but it isn’t essential for dialogue-heavy TV watching. A 3.0 bar with a good center channel often satisfies casual viewers. If you watch action films or listen to music regularly, the added low-end weight of a 3.1 system is worth it.