Product Overview
The Logitech Z623 2.1 Speaker System delivers powerful audio with 200 watts (RMS) of power, providing a rich sound experience for your computer, gaming console, or other audio devices. This THX-certified system includes two satellite speakers and a dedicated subwoofer, designed to produce deep bass and clear highs.
- Speaker System Z623, 200 watts (RMS), 3.5 mm inputs, 2.1 system

Image: The Logitech Z623 2.1 Speaker System, featuring two compact satellite speakers and a powerful subwoofer, all in a sleek black finish.
Setup Guide
Setting up your Logitech Z623 speaker system is straightforward. The system is designed for quick and easy connection to various audio sources.
- Connect Satellite Speakers: Plug the cables from the two satellite speakers into the corresponding ports on the back of the subwoofer. The ports are typically labeled for left and right speakers.
- Connect Audio Source: Use the provided 3.5mm audio cable or RCA cables to connect your audio source (computer, smartphone, tablet, gaming console, TV, or record player) to the appropriate input ports on the back of the subwoofer. The system supports multiple inputs for versatility.
- Connect to Power: Plug the subwoofer's power cable into a standard electrical outlet.
- Power On: Locate the power button on the right satellite speaker and press it to turn on the system.

Image: Rear panel of the Logitech Z623 subwoofer, highlighting the various input ports for connecting satellite speakers and audio sources.

Image: A comprehensive view of the Logitech Z623 system, with the subwoofer's rear connections visible, demonstrating the setup for the satellite speakers.
Operating Instructions
Once your Logitech Z623 system is set up, you can easily control your audio experience using the integrated controls on the right satellite speaker.
- Power: Press the power button to turn the speakers on or off. An indicator light will confirm the power status.
- Volume Control: Use the large volume knob to adjust the overall sound level. Turn clockwise to increase volume and counter-clockwise to decrease.
- Bass Control: The dedicated bass knob allows you to fine-tune the subwoofer's output. Adjust this to achieve your preferred level of bass response, from subtle to room-shaking.
- Headphone Jack: A 3.5mm headphone jack is conveniently located on the right satellite speaker for private listening. Plugging in headphones will mute the speakers.
- Auxiliary Input: An additional 3.5mm auxiliary input is available on the right satellite speaker for quick connection of portable devices.

Image: A detailed view of the right satellite speaker, showcasing the power button, volume knob, and bass control knob for easy audio adjustments.

Image: The Logitech Z623 speaker system positioned next to a television, demonstrating its use for an immersive audio experience in a home entertainment setup.
Maintenance and Care
To ensure the longevity and optimal performance of your Logitech Z623 speaker system, follow these simple maintenance guidelines:
- Cleaning: Use a soft, dry cloth to wipe down the speakers and subwoofer. Avoid using liquid cleaners or abrasive materials, as they may damage the finish or internal components.
- Placement: Place the speakers on a stable, flat surface to prevent accidental falls. Ensure adequate ventilation around the subwoofer to prevent overheating.
- Cable Management: Keep cables organized and untangled to prevent damage and ensure a neat setup. Avoid placing heavy objects on cables.
- Environmental Conditions: Do not expose the speakers to extreme temperatures, humidity, or direct sunlight. Keep them away from sources of water or excessive dust.
Troubleshooting
If you encounter any issues with your Logitech Z623 speaker system, refer to the following common troubleshooting steps:
- No Sound:
- Ensure the speakers are powered on and the power indicator light is illuminated.
- Check all cable connections between the speakers, subwoofer, and audio source. Ensure they are securely plugged in.
- Verify that the volume knob on the right satellite speaker is turned up.
- Confirm that the audio source (computer, phone, etc.) is playing sound and its volume is not muted or too low.
- If using headphones, unplug them from the speaker's headphone jack.
- Distorted Sound:
- Reduce the volume on both the speakers and your audio source.
- Adjust the bass knob to see if excessive bass is causing distortion.
- Ensure the audio cables are not damaged or loosely connected.
- No Bass:
- Check the bass knob on the right satellite speaker and turn it up.
- Ensure the subwoofer is properly connected and powered on.
- Verify that the audio source is providing a full-range audio signal.
Specifications
| Feature | Detail |
|---|---|
| Model Name | Logitech Z623 |
| Speaker Type | Subwoofer |
| Surround Sound Channel Configuration | 2.1 |
| Speaker Maximum Output Power | 400 Watts |
| RMS Power | 200 Watts |
| Connectivity Technology | Wired (Bluetooth mentioned in specs, but primary is wired) |
| Audio Output Mode | THX |
| Color | Black |
| Material | Plastic |
| Item Weight | 2.2 pounds (approx. 1 kg) |
| Product Dimensions | 9.5 x 3.54 x 4.91 inches |
| Included Components | Subwoofer, two satellite speakers |
| Compatible Devices | Laptop, Desktop |
| Power Source | Corded Electric |
Warranty and Support
Logitech products are designed for durability and performance. This product comes with a limited warranty. For detailed warranty information, technical support, or service inquiries, please visit the official Logitech support website or contact their customer service. Keep your purchase receipt for warranty claims.
For further assistance, you may visit the Logitech Store on Amazon.





