What to check before installing new desktop speakers

New desktop speakers can be ready to go and still produce no sound if the computer is using the wrong output, the speakers need separate power, or a cable is in the wrong port. A quick check before setup can save you from moving the speakers and reconnecting cables more than once.

Use the checklist below to confirm that the speakers suit your computer and desk. Once they are connected, the Speaker Test can help you check the left and right channels and listen for unwanted noise.

Check the speakers before you install them

Open the Speaker Test in a browser tab so it is ready for the sound check after setup. You do not need to connect or grant permission to use this test.
Check the audio connection. Look at the speaker manual and the computer's ports. Speakers may use a 3.5 mm audio plug, USB, Bluetooth, or a separate connection for sound and power. A USB cable may provide power only, so check whether the speakers also need an audio cable.
Check whether the speakers need an amplifier. Powered speakers have their own amplifier and can usually connect directly to a computer's audio output. Passive speakers need an amplifier or receiver between them and the computer. Do not connect passive speakers directly to a headphone jack.
Check the power and included accessories. Confirm whether the speakers need a wall outlet, a power adapter, batteries, or a USB power source. Make sure the required cable and adapter are included, and check that the cable can reach the computer and power outlet from your planned position.
Choose a safe place for them. Leave enough room for both speakers, keep their vents clear, and avoid stretching cables across a walkway. If the speakers have a volume knob, turn it down and switch them off before connecting cables.
Connect them and select the output. Plug in the audio and power connections, then turn on the speakers. On Windows 11, go to Settings › System › Sound and select the speakers under Output. On macOS, go to System Settings › Sound › Output and select the speakers. Now use the Speaker Test to play the left and right channels at a low volume.

What the result means

Both channels sound clear

The speakers are connected and playing stereo sound. Stereo means the left and right channels carry separate audio. If music or a video still sounds wrong, check that its app is using the same output and that its own volume is not muted.

Only one speaker plays

The computer is sending sound, but one channel may be disconnected, muted, or routed incorrectly. Check that each speaker cable is fully inserted and that the left and right speakers are connected to the correct outputs. If one speaker connects to the other with a wire, check that connection too.

Neither speaker plays

The speakers may be off, lack power, or not be selected as the computer's audio output. Check the power indicator and volume control, then confirm the selected output in system settings. For USB speakers, check whether they appear as an output device after you connect them.

You hear buzzing, crackling, or distortion

Lower the speaker volume and test again. A loose plug, damaged cable, or excessive volume can cause distortion. If the sound is clean at low volume but rough when turned up, the speakers may be pushed beyond a comfortable level.

The tone sounds thin or has little bass

Check that both speakers are playing and that the test is not using only one channel. Also check the speaker's placement and any bass or tone controls. Some small desktop speakers have limited bass by design, so this result does not by itself mean they are faulty.

How to fix speaker setup problems

Turn up the right volume control. Check the speaker knob, the computer's volume, and the volume inside the app playing sound. Raise them a little at a time rather than starting at maximum.
Check the selected output again. On Windows 11, open Settings › System › Sound and choose the speakers under Output. On macOS, open System Settings › Sound › Output and select them. A computer can send sound to a monitor, headset, or another device instead.
Match the cable to the port. For a 3.5 mm connection, use the computer's audio output or headphone port, not its microphone input. If the computer has several audio jacks, check the labels or manual. For USB speakers, try a different USB port and reconnect the cable.
Check the speaker connections. Make sure each plug is fully seated and any left-to-right speaker wire is firmly connected at both ends. For Bluetooth speakers, confirm they are paired and selected as the output, not merely listed as a nearby device.
Close and reopen the audio app. Some apps keep using an output selected before you connected the speakers. Restarting the app can make it detect the current output.
Restart the computer if the speakers do not appear. This can refresh the list of connected audio devices. If USB speakers still do not show up, try another cable or port if available.

Know the difference between power and sound

A speaker can light up or turn on without receiving audio. This is common with USB-powered speakers that use a separate 3.5 mm cable for sound. The opposite can happen too: the audio cable may be connected, but the speakers remain silent because their power adapter is unplugged or their switch is off.

USB speakers usually appear in the computer's output list as their own audio device. Speakers connected by a 3.5 mm plug usually use the computer's built-in audio output. If the computer does not list the speakers by name, check the connection type before assuming they are broken.

When the speakers may be faulty

Test the speakers with another compatible sound source, using the correct power supply and cable. If they remain silent, crackle at low volume, or one channel fails with more than one source, the speakers or their cable may be defective. Check the warranty and contact the seller or manufacturer before opening the enclosure. If the speakers work elsewhere, the issue is more likely to be the computer's output, settings, or connection.