Soundbars Buying Guide: How to Choose the Right Audio Upgrade for Your TV

Upgrading your television audio can make dialogue easier to follow and films more engaging, but choosing between soundbars is not simply a matter of selecting the highest wattage. Some products use impressive numbers to suggest stronger performance, while overlooking room size, connection standards or the practical limits of virtual surround sound.

Three common buying traps are worth avoiding:

• Treating wattage as a complete measure of sound quality: RMS power indicates electrical output, but it does not describe dialogue balance, driver design or bass control.
• Assuming every “wireless soundbar” is cable-free: Bluetooth or Wi-Fi may remove the audio cable to your television, but a wireless subwoofer still needs its own power connection.
• Expecting Dolby Atmos to work equally well in every room: Up-firing drivers need a suitable ceiling and sensible placement. Very high, vaulted or heavily absorbent ceilings may reduce the height effect.

The right choice depends on your television, room layout, viewing habits and tolerance for additional speakers.

Soundbar specifications that matter

1. Channel configuration and speaker placement

Channel numbers describe the intended audio layout. A 2.0 channel soundbar generally provides left and right audio in one enclosure, while a 2.1 channel soundbar adds a separate bass channel, usually through a subwoofer. This can suit smaller living rooms where stronger low-frequency output is wanted without rear speakers.

A 3.1.2 channel soundbar adds a dedicated centre channel for dialogue and two height channels, usually delivered through upward-firing drivers. A 5.1.2 channel soundbar provides more surround information, while systems such as a 9.1.4 channel soundbar or 11.1.4 channel soundbar typically include rear speakers, a subwoofer and multiple height channels.

More channels can create a broader listening field, but they also require more space and careful positioning. Check whether rear speakers are included, rather than assuming the channel description means a complete multi-speaker package.

2. Dolby Atmos, DTS and HDMI eARC

A Dolby Atmos soundbar can process compatible object-based soundtracks, but the television, streaming service, disc player or games console must also deliver a suitable signal. HDMI eARC is the most flexible connection for modern home cinema because it can carry higher-bandwidth audio formats between compatible devices.

Standard HDMI ARC may be sufficient for many compressed formats, while optical connections have more limited format support. Before buying, check that your TV has the required port and that your console or streaming device can pass audio through correctly. HDMI eARC also commonly supports CEC, allowing one compatible remote to control volume.

3. Dimensions, power and room suitability

Measure the gap beneath your screen before ordering. A soundbar that is too tall may obstruct the television’s lower edge or remote sensor. Also check the width: a compact model may look more balanced with a smaller TV, while a wider bar can suit a large screen.

Power figures should be read alongside the full specification. For example, the Samsung HW-Q990F lists 756 W RMS and an 11.1.4-channel layout, while the LG SH5A lists 320 W total power in a 2.1 configuration. These are different system designs rather than directly comparable quality scores.

For UK households concerned about energy use, check standby consumption and whether the subwoofer enters standby automatically. The Samsung HW-Q990F specification lists 0.5 W standby consumption, while its subwoofer is separately rated at 48 W power consumption. Actual use varies with listening volume and operating mode.

Our Top Recommendations by listening profile

MATCH FOR: Budget-Conscious Starters

Samsung HW-C400/XU soundbar speaker Black 2.0 channels

Why This Fits Their Persona: A compact option for flats, bedrooms or smaller UK living rooms where simple TV improvement matters more than cinema-scale bass.

How It Avoids the Trap

Its 2.0 layout and built-in woofer make the absence of a separate subwoofer clear, avoiding misleading assumptions about a full surround package.

Key Advantage & Pros

40 W output, Bluetooth, USB playback, Voice Enhancement Mode and Night Mode in a compact 2.0 design.

MATCH FOR: Premium Quality Seekers

Bose Smart Ultra Soundbar Arctic White

Why This Fits Their Persona: Suitable for film viewers who want Dolby Atmos processing and streaming features in a single, discreet bar.

How It Avoids the Trap

The specification identifies Dolby Atmos, HDMI eARC and optical inputs separately, so buyers can match the connection to their television instead of relying on a vague “cinema” label.

Key Advantage & Pros

Nine internal transducers, two up-firing drivers, Wi-Fi, Bluetooth, AirPlay 2, Spotify Connect and Chromecast built-in.

MATCH FOR: Specific Use-Case/Heavy Users

Samsung HW-Q990F Black 11.1.4 channels 756 W

Why This Fits Their Persona: A substantial home cinema system for larger rooms, regular film nights and gamers who have space for rear speakers and a subwoofer.

How It Avoids the Trap

The 11.1.4 configuration is supported by 23 speakers, a wireless active subwoofer and wireless rear speakers, making the system layout explicit.

Key Advantage & Pros

756 W RMS, Dolby Atmos, DTS:X, HDMI eARC, Wi-Fi, Bluetooth 5.3, Game Mode Pro and room calibration.

MATCH FOR: TV Brand Loyalists and Gamers

LG USC9S 3.1.3 Channel Soundbar & Wireless Subwoofer

Why This Fits Their Persona: A practical match for compatible LG OLED C Series owners and console players using 4K gaming features.

How It Avoids the Trap

Its TV synergy bracket is specified for LG OLED C Series models, while HDMI eARC and 4K pass-through support are clearly listed for suitable setups.

Key Advantage & Pros

3.1.3 channels, 400 W total output, 220 W wireless subwoofer, Dolby Atmos, DTS:X, VRR and ALLM up to 120 Hz.

Setup checklist for UK homes

1. Place the soundbar centrally beneath the television, with its front grille and any upward-firing drivers unobstructed.
2. Connect an HDMI eARC soundbar to the TV’s eARC socket where available. Enable HDMI-CEC if you want volume control from the television remote.
3. Pair a wireless subwoofer according to the manufacturer’s instructions, remembering that it still requires a nearby mains socket.
4. Keep rear speakers at the sides or slightly behind the seating position, rather than directly beside the television.
5. For Bluetooth music streaming, check whether the soundbar supports the desired phone, tablet or streaming service. Bluetooth audio quality and control features vary between models.
6. Retain packaging, manuals and proof of purchase. Check the supplied UK power connection, warranty terms and retailer returns policy before installation.

Frequently asked questions

Are soundbars worth buying for a television?

They can be a practical upgrade when built-in TV speakers sound thin, lack bass or make speech difficult to follow. A compact 2.0 or 2.1 model may suit everyday viewing, while a multi-channel home cinema soundbar is more appropriate for films and gaming.

Do I need HDMI eARC for Dolby Atmos?

Not always. Some systems can receive selected Atmos formats through standard ARC or other connections, but HDMI eARC offers broader format support and is the safer choice for a modern TV, streaming device or games console. Confirm compatibility across every device in the signal chain.

How long should a soundbar last?

Lifespan depends on usage, ventilation, software support and the condition of the power supply. Avoid blocking vents or upward-firing drivers, keep liquids away and use a surge-protected mains connection where appropriate. A model with the required inputs and streaming features is less likely to become inconvenient as other equipment changes.