How to Connect Speakers to a PC Monitor: What You Need to Know
Getting audio from your computer setup can be surprisingly straightforward — or surprisingly confusing — depending on your monitor, your PC, and the speakers involved. The good news is that once you understand how audio routing actually works between these components, the right approach for your situation becomes much clearer.
Why Monitors and Speakers Are a Separate Conversation
Most people assume their monitor handles everything. Visually, it does — but audio is a different signal path entirely. A monitor displays what your GPU sends it. Sound, however, travels through your audio output, which may or may not pass through the monitor at all.
This distinction matters because there are actually two separate scenarios when someone asks about connecting speakers to a PC monitor:
- Using the monitor as an audio passthrough — where sound goes from your PC → monitor → external speakers
- Bypassing the monitor entirely — where speakers connect directly to your PC's audio output
Both are valid. Which one applies to you depends on your hardware.
Understanding the Connection Types 🔌
3.5mm Analog (Headphone Jack)
The most common and universally compatible method. If your monitor has a 3.5mm audio output jack (often labeled "Audio Out" or with a headphone symbol), you can plug passive or powered speakers directly into it. The monitor receives audio data via HDMI or DisplayPort, converts it, and outputs analog audio through that jack.
Most budget and mid-range monitors include this. It's simple and requires no drivers or configuration beyond selecting the right playback device in your OS.
HDMI Audio Extraction
HDMI carries both video and audio in a single cable. When your PC connects to a monitor via HDMI, the audio signal is embedded in that same cable. If your monitor has built-in speakers or an audio output jack, it decodes and plays or passes that audio.
If your monitor lacks speakers and has no audio output, the audio data arrives but has nowhere to go — it's effectively dropped. In that case, you'd use an HDMI audio extractor (a small inline device) to pull the audio signal out and send it to speakers via RCA or 3.5mm.
DisplayPort and Audio
DisplayPort also carries audio, similar to HDMI. The same principle applies — the monitor needs either built-in speakers or a 3.5mm audio out to pass sound to external speakers. Without those, an active DisplayPort-to-HDMI adapter or audio extractor is needed.
USB Audio
Some monitors include a USB hub, and some speakers connect via USB rather than analog jack. In this case, the monitor acts as a USB passthrough — the speakers are technically connecting to your PC's USB bus through the monitor. Audio quality and compatibility depend on the speaker's built-in DAC (digital-to-analog converter).
Direct PC Connection
Many setups skip the monitor entirely. Your PC's 3.5mm line-out jack (usually green on desktop motherboards), USB port, or optical/TOSLINK output connects directly to powered speakers. This avoids any monitor limitations and typically offers better audio quality since you're not routing through the monitor's circuitry.
Key Variables That Determine Your Setup
| Variable | Why It Matters |
|---|---|
| Monitor audio output | Does your monitor have a 3.5mm out or built-in speakers? |
| Connection type (HDMI vs DisplayPort vs VGA) | VGA carries no audio — requires separate audio cable |
| Speaker type (powered vs passive) | Passive speakers need an amplifier; powered speakers have one built in |
| PC audio ports | Desktop boards often have dedicated audio I/O; laptops may only have a combo jack |
| OS audio settings | Windows, macOS, and Linux each handle playback device selection differently |
VGA deserves special mention: it is a video-only signal. If your PC or monitor uses VGA, there is no audio traveling through that cable — period. You'll need a direct connection from your PC's audio output to your speakers regardless of what the monitor does.
How OS Audio Routing Works
Even with the right cables, speakers won't produce sound if your operating system is sending audio to the wrong device. 🖥️
In Windows, right-clicking the speaker icon in the taskbar and opening Sound Settings lets you choose your default playback device. If your monitor appears as an HDMI/DisplayPort audio device and your external speakers are connected to it, you'd select the monitor as your output. If speakers are connected directly to your PC, you'd select your motherboard's audio output or the USB speaker device.
In macOS, System Settings → Sound → Output lets you do the same. On Linux, audio routing typically goes through PulseAudio or PipeWire, which can be managed through a GUI like pavucontrol or through terminal commands.
Getting the cables right and getting the OS routing right are two separate steps — both have to be correct for sound to work.
The Spectrum of Setups
A home office user with a mid-range monitor and basic stereo speakers will likely find that HDMI in + 3.5mm out covers everything simply. A gamer or audio enthusiast might prefer bypassing the monitor entirely and connecting to a dedicated DAC/amp or directly to a PC's rear audio output for lower latency and better signal quality. A dual-monitor user may need to think carefully about which monitor is set as the audio output device — or route audio entirely outside the monitor chain.
Someone using a laptop with a single USB-C port faces a different problem: they may need a hub or dock that handles audio extraction, since USB-C delivery of audio to external speakers adds another layer of adapter logic.
The right physical connection and routing path genuinely depends on what ports your monitor and PC actually have, what kind of speakers you're working with, and how your operating system sees those devices — none of which is the same from one desk to the next.