Soundbar Guide in 2026: How to Choose the Best One for Your TV

Soundbar Guide in 2026: How to Choose the Best One for Your TV

A good soundbar is the quickest way to improve movies, TV shows, football, and games: clearer dialogue , impactful bass, and a "cinema sound" feel—without installing speakers all over the room.

But to avoid mistakes, you need to choose based on how you use the TV (streaming, console, Blu-ray), the size of the room , and above all, the correct connections (HDMI and eARC/ARC) .

1) Is a soundbar worth it? Yes — if you want 3 things

  1. Clearer dialogue (voice / dedicated center on 3.1+ models)

  2. Real bass (subwoofer)

  3. Immersive sound (surround sound and, if you want, Dolby Atmos)

If you turn up the volume today and still "don't understand what they're saying," a soundbar with a center channel (3.1) usually solves the problem much better than just "more power."

2) What do the numbers 2.1, 3.1, and 5.1.2 mean?

These numbers explain the "architecture" of the system (channels and subwoofer).

  • 2.1 : two channels (left/right) + 1 subwoofer (bass).

  • 3.1 : Adds a central channel (dialogue's best friend).

  • 5.1 / 7.1 : attempts to create a fuller surround sound (sometimes with rear speakers).

  • 5.1.2 / 7.1.2 : includes “ .2 ” height (Atmos), for vertical feel.

To understand the logic of the “.2” (height), Dolby uses the 5.1.2 example as input for immersive audio: 5 surround channels, 1 subwoofer, and 2 height channels.

Quick selection by profile:

  • Small bedroom/living room → 2.1 (simple and effective)

  • Medium-sized room + focus on dialogue → 3.1

  • Movies + true immersion → 5.1.2 (ideal with subwoofer + rear speakers, if possible)

3) The most important point: HDMI eARC vs ARC (don't ignore this)

If you want "plug & play" and better audio quality, the ideal solution is to connect the soundbar to the TV via HDMI eARC .

  • eARC allows you to send high-quality audio from your TV to your soundbar/receiver using a single HDMI cable .

  • Sony explains that eARC has greater bandwidth and can carry more detailed audio, including formats such as Dolby Atmos and DTS:X , while ARC is more limited.

Rule of thumb:
If your TV has an HDMI eARC port, prioritize a soundbar with HDMI eARC . If you only have ARC, it still works, but you may be limited in formats/quality.

4) Dolby Atmos: when it makes sense (and when it's just marketing)

Dolby Atmos adds a "vertical layer" to sound (height), increasing immersion in movies and games.

Atmos is worth paying for when:

  • You watch many movies/series with immersive audio;

  • Your room has a "normal" ceiling (not too high) and decent positioning;

  • You accept that, in soundbars, part of the effect can be virtualized (it depends on the model).

If your priority is dialogue and everyday TV, sometimes a good 3.1 setup delivers better results than "basic Atmos".

5) Subwoofer: the upgrade that changes everything

Even "good" soundbars on their own have bass limitations. A subwoofer (wireless or wired) delivers:

  • impact on explosions, music and environment

  • "Movie theater" feeling

If you live in an apartment, you can choose a subwoofer with good volume control and use night modes.

6) DTS:X and passthrough: an important detail for Blu-ray and some setups.

If you watch a lot of Blu-rays or use external devices (e.g., Android box/console), it may be important to know if your TV supports passthrough of certain formats to the soundbar via eARC.

RTINGS, for example, measures the ability of TVs to pass surround sound and cites cases such as DTS:X via DTS-HD MA passthrough via eARC , something that is usually relevant mainly in Blu-rays.

Practical tip:
If your TV doesn't play a certain format, many soundbars have HDMI IN : you connect the source (set-top box/player) to the soundbar and send video to the TV — reducing passthrough limitations.

7) Correct installation in 5 steps (for it to work "right away")

  1. Connect to the HDMI (eARC/ARC) port on the TV (usually identified).

  2. Activate eARC/ARC + CEC in your TV settings (controlled via HDMI). Sony emphasizes that ARC/eARC works via HDMI and simplifies the connection without extra optical cables.

  3. In the TV's sound menu, select HDMI output (eARC/ARC) and, if available, Pass-through/Bitstream .

  4. Position the soundbar without obstructions (not "closed" inside the furniture).

  5. Perform calibration/adjustments (if the model has them) and activate voice/dialogue mode.

8) Which soundbar to buy for each type of room?

  • Small room (up to ~15–20 m²) : 2.1 or 3.1 (dialogue + subtitles)

  • Medium-sized room (20–30 m²) : 3.1.2 or 5.1 (ideal with subwoofer)

  • Large room / “home theater” : 5.1.2+ with background and good eARC connectivity.

If you play a lot, it's also worth looking at the number of HDMI ports and compatibility with your streaming setup (console + TV + eARC).

FAQ

What is the difference between HDMI ARC and eARC?
eARC has greater capabilities and allows for higher quality audio/more advanced formats; ARC is more limited.

Do I need eARC for Dolby Atmos?
It depends on the content and your setup, but eARC makes it easier to transport fuller, higher bitrate audio formats with fewer limitations.

2.1 or 3.1: which is better for understanding dialogues?
3.1 generally helps more because it adds a center channel (voice). (And 2.1 is "2 channels + subwoofer").

Can a soundbar replace a home theater system with speakers?
For most people, yes (simplicity). For maximum immersion, dedicated speakers may still be superior — but a soundbar with a subwoofer and rear speakers comes very close in real-world use.

Does my TV stream DTS:X to the soundbar?
Not always — and this may depend on the passthrough via eARC. There are specific passthrough tests on TVs that show differences.