For most Logitech speakers, you'll find where to plug in Logitech speakers on PC by connecting the primary audio cable into your computer's green 3.5mm "Line Out" jack (usually on the back of a desktop tower or the side of a laptop). If your model uses a single USB cable, plug that directly into any available USB port on your PC; this is the most common setup for modern Logitech speaker systems like the Z407 or G560. If you're switching between speakers and a headset, you can also setup Logitech headset for PC to manage both devices in your sound settings.
Where to plug in Logitech speakers on PC: the quick answer
The fastest way to connect your Logitech speakers is to identify the main cable coming from the subwoofer or control pod. If it's a thin, round cable with a metallic 3.5mm plug (like a headphone jack), insert it into the green audio port on your computer. If the cable is flat with a rectangular USB connector, plug it into any USB-A port on your PC. For desktop towers, these ports are almost always on the rear I/O panel, but laptops typically have them on the left or right side.
Identify your Logitech speaker connections
Logitech manufactures speakers with four primary physical connection types. Knowing which one you have is the key to a correct setup. The most common are USB (single cable for power and audio) and 3.5mm analog (a green plug that carries stereo audio). Larger systems may also include RCA (red and white) inputs for connecting to TVs or consoles, and premium models like the Z906 feature an optical (TOSLINK) input for digital audio from a PC's sound card. Check the back of your subwoofer or the end of your speaker's cable to identify your connection type before proceeding.
Connecting via the 3.5mm audio jack
The 3.5mm connection is the most universal method. The exact port on your PC depends on your sound card's channel configuration. Here’s how to do it correctly.
For a standard 2-channel (stereo) sound card
Locate the green "Line Out" jack on your PC. This is usually the bottom-most port on the back of a desktop, or the single headphone icon on a laptop. Plug the green 3.5mm cable from your Logitech speakers directly into this port. If your speakers have a separate control pod, the cable plugs into the pod first, then into the PC.
For a 4-channel or 5.1 sound card
If your Logitech system (like the Z623 or Z625) has multiple 3.5mm plugs, you'll need to match them to the colored jacks on your PC. Insert the green plug into the green "Front" or "Line Out" jack. Insert the black plug into the black "Rear" jack. For 5.1 systems, the orange plug goes into the orange "Center/Subwoofer" jack. This is the most common configuration for multi-channel Logitech systems.
Connecting to the subwoofer
On most Logitech systems, the 3.5mm cable connects to the back of the subwoofer, not the satellite speakers. Look for a small green port labeled "Input" or "Audio In" on the subwoofer's rear panel. Insert the cable firmly until it clicks. The satellites then plug into the subwoofer via their own dedicated cables.
Connecting via USB
USB connections are the easiest and most reliable for modern Logitech speakers. This method carries both power and audio over a single cable, eliminating the need for a separate power brick.
Single-cable setup
Take the USB cable attached to your Logitech speakers (or the control pod) and plug it into any available USB-A port on your PC. For desktop towers, use the rear USB ports for a more stable connection. For laptops, either side works. Windows or macOS will automatically recognize the device as a USB audio device.
Using Logitech G HUB software
For advanced models like the G560, download and install Logitech G HUB after connecting. The software will automatically detect your speakers. Open G HUB to customize RGB lighting, adjust equalizer settings, and enable DTS:X Ultra surround sound. Without G HUB, the speakers will still work, but you'll miss out on these features.
Connecting via RCA or composite inputs
RCA connections are less common on PCs but are present on some Logitech models like the Z333 or Z553. These use red and white cables for left and right audio channels.
Connecting to a PC
Most desktop PCs don't have RCA outputs. If your PC has them (rare), plug the red cable into the red RCA jack and the white cable into the white RCA jack. If your PC only has a 3.5mm jack, you'll need a 3.5mm-to-RCA adapter cable. Connect the 3.5mm end to your PC's green Line Out, and the red/white ends to the corresponding inputs on your Logitech subwoofer. If you're juggling multiple Logitech devices, you can also connect Logitech g733 to Xbox for wireless console audio.
For gaming consoles or receivers
If you're using the speakers with a TV, gaming console, or AV receiver, plug the RCA cables directly into the device's red and white audio outputs. This bypasses the PC entirely.
Connecting via optical cable
Optical connections deliver the highest quality digital audio, free from electrical interference. This is available on premium Logitech systems like the Z906.
Digital audio setup
Locate the optical (TOSLINK) output on your PC's motherboard or sound card. It's a square-ish port with a shutter door. Remove the protective cap from the optical cable and insert it firmly into the PC's optical out. Connect the other end to the "Optical In" port on your Logitech subwoofer.
Selecting the correct input
After connecting, press the "Input" button on your Logitech control pod or remote until the "Optical" or "Digital" indicator lights up. Your PC should automatically switch to the optical output. This connection supports Dolby Digital and DTS for immersive surround sound.
Connecting via Bluetooth (for wireless models)
Some Logitech speakers, like the G560 and Z337, support Bluetooth connectivity. This is a cable-free option for laptops and PCs with built-in Bluetooth.
Pairing your speakers
Put your Logitech speakers into pairing mode. This is usually done by pressing and holding the Bluetooth button on the control pod or the side of the speaker until the LED flashes rapidly. From the list, select "G560 Gaming Speaker" or your specific model name. Wait for the "Connected" status.
Setting as default
For macOS, go to System Preferences > Sound > Output and select the speakers. Note that Bluetooth may introduce slight audio lag, so for gaming, a wired USB or 3.5mm connection is preferred.
Powering on and final setup
Proper power and configuration are essential for optimal sound. Follow these steps in order to ensure everything works correctly.
Connecting power
Plug the subwoofer's power cord into a working AC electrical outlet. Do not use a power strip that is switched off. For models with a control pod, ensure the pod's volume knob is turned all the way down before powering on.
Connecting satellite speakers
Insert each satellite speaker's colored plug into the corresponding colored jack on the back of the subwoofer. Match the colors exactly (e.g., green plug to green jack). This is critical for proper channel separation.
Turning on and setting default device
Turn the control pod knob clockwise until it clicks to power on the speakers. Under "Output," select your Logitech speakers (they may appear as "Speakers" or "USB Audio Device"). On Mac, go to System Preferences > Sound > Output and select the Logitech speakers.
Troubleshooting common connection issues
If you've followed the steps but aren't getting sound, use these targeted fixes based on verified solutions.
No sound at all
Double-check that the audio cable is fully inserted into the correct port on your PC. Try a different USB port or 3.5mm jack. Ensure the volume knob on the control pod is turned up and the speakers are powered on.
Device not recognized by PC
For USB speakers, unplug the cable, restart your PC, and plug it back in. Right-click it and select "Update driver." For Bluetooth models, remove the device from your PC's Bluetooth list and pair it again from scratch.
Poor audio quality or distortion
Check that the 3.5mm plug is inserted all the way, a loose connection causes buzzing. For USB speakers, ensure you have the latest Logitech G HUB software installed.
For the wider topic, see connecting a headset to a console.
