Soundbar for a Computer Monitor: What to Check

What to check before buying a soundbar for a monitor

A computer monitor's built-in speakers are often limited in output and clarity, which is why a soundbar is a popular upgrade. But a soundbar designed for a TV may not fit a desktop setup, so you need to check three things: inputs, size, and features.

Start with the connections your monitor offers. Most monitors lack HDMI ARC or eARC, so a soundbar with optical or 3.5 mm analog input may be more practical. Bluetooth is also a common option for streaming from a computer or phone.

Size matters because the soundbar will sit on your desk, often in front of or under the monitor. The width should not exceed the monitor's width for a clean look, and the height must not block the lower part of the screen. Finally, consider features that improve speech clarity and bass response at close range.

• Inputs: HDMI, optical, 3.5 mm, or Bluetooth.
• Size: width under the monitor, height below the screen.
• Features: dialogue enhancement, bass adjustment, subwoofer option.

Inputs: HDMI, optical, and 3.5 mm

Most computer monitors do not include HDMI ARC or eARC, which are common on TVs. If your monitor has an HDMI input but not the audio return channel, a soundbar with an HDMI input will not receive audio through it. Check your monitor's specifications first. If you have HDMI, look for a soundbar with HDMI input that supports the video passthrough if you route a console or other device through the bar.

Optical and 3.5 mm analog connections are more likely to be present on a monitor. Some soundbars include both, giving you flexibility. For example, you can connect the monitor's headphone jack to the soundbar's 3.5 mm input, or use an optical cable if the monitor has an optical output. These are simple, reliable connections that do not require HDMI negotiation.

Bluetooth is a wireless option that works with any computer that supports the Bluetooth Classic radio, which is the standard for audio streaming. The Bluetooth Classic radio uses 79 channels in the 2.4 GHz band and supports data rates up to 3 Mb/s with EDR, which is more than enough for stereo audio. You can check the Bluetooth overview page for details on the profile.

For a computer, the most important input is the one that carries audio from your desktop. If your monitor has a headphone jack, a 3.5 mm analog soundbar will work with zero configuration. If your monitor has optical, that can carry higher bitrate digital audio. If you use a desktop tower, you also have the option to connect directly from the PC's sound card via USB or 3.5 mm, bypassing the monitor entirely.

Size: match the monitor width and height

Placement is a key difference between a TV soundbar and a computer soundbar. On a desk, the soundbar usually sits directly below the monitor, either on the monitor stand or on a separate stand. The width of the soundbar should be close to the monitor's width, but not wider. A bar that is significantly wider can look out of place and may not fit on a narrow desk.

Height is just as important. If the soundbar is taller than the space between the desk and the bottom of the monitor, it will block the screen. Many monitors have a stand that raises the panel a few inches, but the gap may be small. Measure the distance from the desk to the bottom edge of your monitor before buying. Soundbars with a low profile, often around 2 inches tall, are easier to fit.

You also need to consider depth. A typical soundbar is a few inches deep, which is fine on most desks. However, some models with built-in subwoofers or rear ports may require more clearance from the wall. If you plan to wall-mount the monitor, you have more freedom because the soundbar can be wall-mounted below it too. See the soundbar placement guide for more on positioning.

Features that matter on a desktop

When you sit close to a soundbar, clarity matters more than raw power. Dialogue-heavy content such as video calls, tutorials, and news should be easy to understand. Many soundbars have a dialogue enhancement mode that boosts the center frequencies, which helps. If the soundbar has a physical or virtual center channel, it can improve speech intelligibility. For more on this, see dialogue enhancement.

Bass is another consideration. At a desk, a large subwoofer may be overkill, but a built-in reflex port or passive radiator can add useful low-end without taking up space. If you want deeper bass for music or gaming, a separate wireless subwoofer can be placed under the desk. The decision depends on how much desk space you have and your preferred sound profile. A 2.0 soundbar keeps things simple, while a 2.1 model adds a subwoofer.

Virtual surround sound is popular, but its benefit on a desktop is limited because the speakers are close to your ears. Some bars use beamforming or side-firing drivers to widen the soundstage. If you need to know where effects are coming from in games, a 3.1 soundbar with a dedicated center channel may be more effective than a virtual surround sound field.

Volume and hearing safety are also relevant. The National Institute on Deafness and Other Communication Disorders states that long or repeated exposure to sounds at or above 85 dBA can cause hearing loss. At a desk, you are close to the soundbar, so it is easy to reach high volumes without realizing it. Use your soundbar's volume control judiciously and consider a model with a limiter or night mode.

Wireless and power options

Bluetooth is the main wireless option for a computer soundbar. Most desktop PCs and laptops support Bluetooth, and the connection is quick to set up. Bluetooth technology includes both Classic and LE radios; Classic is used for audio streaming, while LE is for low-power data. A soundbar that supports Bluetooth Classic will pair with your computer easily. If you also want to connect a phone, look for multipoint support.

Power is simpler: most soundbars plug into a wall outlet. Some compact models are USB powered, which is convenient for a laptop desk, but the audio output is often lower. For a desktop, a dedicated power adapter is fine. Also consider the physical controls. Soundbars with volume and input buttons on the unit or a small remote are easier to operate when the bar is under a monitor.

If you plan to use the soundbar with multiple devices, such as a work laptop and a personal computer, check that it has multiple inputs. For instance, one input for 3.5 mm and one for optical allows you to switch sources without unplugging cables. Some soundbars also have an HDMI input for a game console, but that is less common in a monitor setup.

What to pick for your use

Questions

Do I need HDMI ARC on a soundbar for a computer?

Not usually. Most monitors do not have HDMI ARC, so a soundbar with optical or 3.5 mm input is more practical. Bluetooth is also a good option. Only consider HDMI ARC if your monitor explicitly supports it.

Will a soundbar designed for a TV fit under my monitor?

It can, but check the width and height. TV-style soundbars are often wide and tall. Measure the gap under your monitor and choose a bar that is not wider than the monitor, or use a separate stand.

Can I connect a soundbar to a computer without a monitor?

Yes. You can connect directly to your computer's audio output via 3.5 mm, USB, or Bluetooth, bypassing the monitor entirely. This is often simpler for a desktop tower.

Is a subwoofer necessary for a computer soundbar?

Not necessary. A 2.0 soundbar with good bass radiators can produce enough low-end for a desk. If you want more impact for movies or music, a separate subwoofer in a 2.1 system is a worthwhile upgrade.

How loud should I set a soundbar at a desk?

The National Institute on Deafness cites 85 dBA as the threshold for long-term exposure risk. At close range, even moderate volume can exceed that if set very high. Use the lowest volume that is comfortable and take breaks.