Introduction
The ALTEC Lansing ACS31 Multimedia Computer Speaker System is engineered to deliver high-quality audio for your computer. This system includes two powered satellite speakers and a dedicated subwoofer to enhance your listening experience with extended low-frequency response. The satellite speakers are electronically controlled and magnetically shielded to prevent interference with other electronic devices.
This manual provides comprehensive instructions for setting up, operating, and maintaining your ACS31 speaker system. Please read it thoroughly before use to ensure proper installation and optimal performance.
Safety Information
- Power Source: Only use the power adapter supplied with the unit. Ensure the voltage matches your local power supply.
- Ventilation: Do not block any ventilation openings. Install in accordance with the manufacturer's instructions.
- Water and Moisture: Do not expose this appliance to rain or moisture. Do not place objects filled with liquids, such as vases, on the apparatus.
- Heat: Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
- Cleaning: Unplug this apparatus before cleaning. Clean only with a dry cloth.
- Servicing: Do not attempt to service this product yourself. Refer all servicing to qualified service personnel.
Package Contents
Verify that all items listed below are included in your package:
- 1 x Subwoofer
- 2 x Satellite Speakers
- 1 x Audio Input Cable
- 1 x Power Adapter
Setup
Follow these steps to set up your ALTEC Lansing ACS31 speaker system:
- Placement: Position the subwoofer on the floor, preferably under your desk or near your computer. Place the two satellite speakers on either side of your computer monitor, ensuring they are equidistant from your listening position for optimal stereo imaging.
- Connect Satellite Speakers: Connect the cables from the satellite speakers to the corresponding output jacks on the back of the subwoofer. Ensure a secure connection.
- Connect Audio Input: Connect one end of the audio input cable to the 'Audio In' jack on the subwoofer. Connect the other end to the audio output jack (typically green) on your computer's sound card or laptop.
- Connect Power: Plug the power adapter into the power input jack on the subwoofer. Then, plug the power adapter into a wall outlet.
- Power On: Locate the power switch on one of the satellite speakers (or the subwoofer, depending on the model) and turn it to the 'ON' position. The LED indicator should illuminate.
Image: Overview of the ALTEC Lansing ACS31 Multimedia Computer Speaker System, showing the subwoofer and two satellite speakers. This image illustrates the main components of the system before connection.
Operating Instructions
Once your speaker system is set up, follow these steps for operation:
- Power On/Off: Use the convenient on/off power switch located on one of the satellite speakers to turn the system on or off. The LED indicator will show the power status.
- Volume Control: Adjust the master volume using the rotary knob, typically found on one of the satellite speakers. Turn clockwise to increase volume and counter-clockwise to decrease.
- Bass Adjustment: The subwoofer provides enhanced bass. If available, a separate bass control knob on the subwoofer or a satellite speaker allows you to adjust the level of low-frequency output to your preference.
- Audio Playback: Start playing audio from your computer. Ensure your computer's volume is also adjusted appropriately.
Image: Close-up of an ALTEC Lansing ACS31 satellite speaker, highlighting the power switch and volume control knob. This image assists users in locating the primary operational controls.
Maintenance
- Cleaning: Disconnect the power before cleaning. Use a soft, dry cloth to wipe the surfaces of the speakers and subwoofer. Do not use liquid cleaners or aerosol sprays, as they may damage the finish or internal components.
- Dust Accumulation: Regularly dust the speaker grilles and vents to prevent dust buildup, which can affect sound quality and internal cooling.
- Cable Management: Ensure all cables are neatly arranged and not pinched or tangled to prevent damage.
- Storage: If storing the system for an extended period, unplug it from the power outlet and store it in a cool, dry place away from direct sunlight and extreme temperatures.
Troubleshooting
If you encounter issues with your ALTEC Lansing ACS31 speaker system, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound from speakers |
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| Distorted or unclear sound |
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| Subwoofer not producing bass |
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Specifications
| Brand | Altec Lansing |
| Model Name | ACS31 |
| Speaker Type | Subwoofer, Satellite Speakers |
| Audio Output Mode | Stereo |
| Number of Audio Channels | 2.1 |
| Compatible Devices | Desktop, Laptop |
| Power Source | Corded Electric |
| Built-In Media | Subwoofer, Two Satellite Speakers |
| UPC | 021986940319 |
Warranty Information
ALTEC Lansing products are manufactured to the highest quality standards. This product is covered by a limited warranty against defects in materials and workmanship. The specific terms and duration of the warranty may vary by region. Please retain your proof of purchase for warranty claims.
For detailed warranty information, please refer to the warranty card included with your product or visit the official Altec Lansing website.
Customer Support
If you require further assistance or have questions not covered in this manual, please contact ALTEC Lansing customer support.
- Website: www.alteclansing.com (Please note: This is a placeholder URL. Refer to your product packaging for the official support website.)
- Email: support@alteclansing.com (Please note: This is a placeholder email. Refer to your product packaging for the official support email.)
- Phone: 1-800-XXX-XXXX (Please note: This is a placeholder number. Refer to your product packaging for the official support phone number.)
When contacting support, please have your product model number (ACS31) and proof of purchase readily available.






