Logitech Z625 THX Certified 2.1 Speaker System User Manual

1. Introduction

The Logitech Z625 THX Certified 2.1 Speaker System is designed to deliver a powerful audio experience for various entertainment needs, including gaming, movies, and music. This system features two satellite speakers and a subwoofer, providing 400 Watts Peak power for crisp sound and deep bass. It supports multiple input options, allowing connection to up to three compatible devices simultaneously.

Image 1.1: The Logitech Z625 THX Certified 2.1 Speaker System, showcasing the subwoofer and two satellite speakers.

2. What's in the Box

Carefully unpack the contents of your Logitech Z625 speaker system. The package should contain the following items:

• Subwoofer
• Two Satellite Speakers
• 3.5mm Audio Cable
• Optical Cable
• Quick Start Guide

Image 2.1: Contents of the Logitech Z625 package, showing the subwoofer, satellite speakers, and connection cables.

3. Setup Instructions

Follow these steps to set up your Logitech Z625 speaker system:

1. Placement: Position the subwoofer on the floor, ideally near a wall for enhanced bass. Place the two satellite speakers on either side of your monitor or television, ensuring they are equidistant from your listening position for optimal stereo imaging.
2. Connect Satellite Speakers: Connect the cables from the satellite speakers to the corresponding ports on the back of the subwoofer. Ensure a secure connection.
3. Connect Audio Source: The Z625 system supports multiple input options. Choose the appropriate cable for your device:
   • 3.5mm Input: Use the included 3.5mm audio cable to connect your computer, smartphone, or other devices with a 3.5mm audio output to the AUX input on the right satellite speaker or the 3.5mm input on the subwoofer.
   • Optical Input: Use an optical cable (included) to connect your television, game console, or other devices with an optical audio output to the OPTICAL input on the subwoofer.
   • RCA Input: Use an RCA cable (not included) to connect devices with RCA audio outputs to the RCA inputs on the subwoofer.
4. Power Connection: Plug the subwoofer's power cable into a wall outlet.

Image 3.1: Rear panel of the Z625 subwoofer, illustrating the various audio input options and satellite speaker connections.

4. Operating Instructions

All primary controls for the Logitech Z625 system are conveniently located on the right satellite speaker.

• Power Button: Press the power button to turn the speaker system on or off. An indicator light will confirm the power status.
• Volume Control: Rotate the large volume knob to adjust the overall audio level.
• Bass Control: Rotate the bass knob to increase or decrease the subwoofer's output. Adjust this to your preference for optimal bass response.
• Headphone Jack: Connect headphones to this 3.5mm jack for private listening. When headphones are connected, audio output from the speakers will be muted.
• Auxiliary Input: This 3.5mm input allows for quick connection of portable audio devices.

The system supports simultaneous connection of up to three devices. To switch between audio sources, simply play audio from the desired connected device. The system will automatically prioritize the active input.

Image 4.1: Controls located on the right satellite speaker of the Z625 system.

5. Maintenance

To ensure the longevity and optimal performance of your Logitech Z625 speaker system, follow these maintenance guidelines:

• Cleaning: Use a soft, dry cloth to clean the surfaces of the speakers and subwoofer. Avoid using liquid cleaners or abrasive materials, as these can damage the finish or internal components.
• Ventilation: Ensure that the subwoofer and satellite speakers have adequate ventilation. Do not block any vents, especially on the subwoofer, to prevent overheating.
• Environment: Keep the speaker system away from direct sunlight, excessive heat, humidity, and dust. Avoid placing it near strong magnetic fields.
• Cable Management: Periodically check all cable connections to ensure they are secure and free from damage. Avoid bending cables sharply.

6. Troubleshooting

If you encounter issues with your Logitech Z625 speaker system, refer to the following common troubleshooting steps:

• No Power:
  • Ensure the power cable is securely plugged into both the subwoofer and a working wall outlet.
  • Verify that the power button on the right satellite speaker is pressed.
• No Sound:
  • Check all audio cable connections (3.5mm, optical, RCA) between the speaker system and your audio source.
  • Increase the volume on both the speaker system and your audio source device.
  • Ensure no headphones are plugged into the headphone jack on the right satellite speaker.
  • Confirm that the correct audio output is selected on your source device (e.g., PC sound settings, TV audio output).
• Distorted or Unclear Sound:
  • Reduce the volume on both the speaker system and your audio source.
  • Adjust the bass control knob on the right satellite speaker.
  • Test with a different audio source or cable to rule out source-specific issues.
• Intermittent Sound:
  • Check for loose cable connections.
  • Ensure the speaker system is not in standby mode. If it enters standby, power cycling the unit may resolve the issue.

For more detailed troubleshooting or persistent issues, please refer to the official Logitech support resources or the complete user guide PDF.

7. Specifications

8. Warranty and Support

The Logitech Z625 THX Certified 2.1 Speaker System comes with a Limited Warranty. For specific terms and conditions of your warranty, please refer to the documentation included with your product or visit the official Logitech website.

For further assistance, detailed product information, or to download the complete user guide, please visit the official Logitech support page:

Download Official User Guide (PDF)

You can also visit the Logitech Store on Amazon for more products and information.