Altec Lansing ALX-2824LA Portable Line Array Speaker System

1. Introduction

Thank you for choosing the Altec Lansing ALX-2824LA Portable Line Array Speaker System. This manual provides essential information for the safe and efficient setup, operation, and maintenance of your new audio system. Please read this manual thoroughly before using the product and retain it for future reference.

The ALX-2824LA is a powerful and portable professional audio solution featuring a dual 8-inch active subwoofer and two stacked speaker tops, each with dual 4-inch drivers and a 1-inch compression tweeter. Designed for versatile floor staging, its adjustable pole-mount system allows for optimal sound dispersion in various venues.

2. Safety Information

• Power Source: Connect the system only to a power supply specified in this manual or on the unit. Ensure the voltage is correct for your region.
• Ventilation: Do not block any ventilation openings. Ensure adequate airflow around the unit to prevent overheating.
• 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 place the unit near heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
• Placement: Ensure the system is placed on a stable, level surface. Use caution when adjusting pole mounts to prevent tipping.
• Servicing: Do not attempt to service this product yourself. Refer all servicing to qualified service personnel.
• Hearing Protection: Prolonged exposure to high volume levels can cause permanent hearing damage. Use caution when operating at high volumes.

3. Package Contents

Verify that all items are present in the package:

• 1 x ALX-2824LA Active Subwoofer
• 2 x ALX-2824LA Satellite Line Array Speakers
• 2 x Adjustable Pole Mounts
• Power Cable
• Audio Cables (XLR)
• User Manual (this document)

4. Product Overview

The Altec Lansing ALX-2824LA system comprises an active subwoofer and two passive line array satellite speakers, designed for powerful and clear audio reproduction. The system is engineered for portability and ease of setup.

Figure 4.1: Front view of the assembled ALX-2824LA system, showing the subwoofer and two stacked satellite speakers on pole mounts.

Figure 4.2: Another front view of the ALX-2824LA system, highlighting the compact and integrated design.

Figure 4.3: Rear view of the assembled ALX-2824LA system, showing the control panel on the subwoofer and connections on the satellite speakers.

4.1. Subwoofer (ALX-2824LA)

The active subwoofer houses the main amplifier and DSP controls. It features dual 8-inch drivers and provides the low-frequency foundation for the system. The rear panel includes power input, audio inputs/outputs, and DSP controls.

Figure 4.4: Close-up of the ALX-2824LA subwoofer rear panel, detailing power, input/output, and DSP controls.

4.2. Satellite Line Array Speakers

Each satellite speaker contains dual 4-inch drivers and a 1-inch compression tweeter, designed to deliver clear mid-range and high-frequency audio. These speakers connect to the subwoofer via XLR cables and are mounted on adjustable poles.

Figure 4.5: Close-up of the ALX-2824LA satellite speaker rear panel, showing input and output connections.

5. Setup

Follow these steps to assemble and set up your ALX-2824LA system:

1. Unpack Components: Carefully remove all components from their packaging.
2. Position Subwoofer: Place the ALX-2824LA subwoofer on a stable, level surface in your desired location.
3. Install Pole Mounts: Insert the adjustable pole mounts into the designated sockets on top of the subwoofer. Secure them firmly.
4. Mount Satellite Speakers: Attach each satellite line array speaker to the top of an adjustable pole mount. Ensure they are securely fastened.
5. Connect Satellite Speakers: Using the provided XLR cables, connect the OUTPUT from the subwoofer to the INPUT of the bottom satellite speaker. Then, connect the OUTPUT of the bottom satellite speaker to the INPUT of the top satellite speaker. Repeat for the second stack. (Refer to Figure 4.3 and 4.5 for connection points).
6. Connect Audio Source: Connect your audio source (e.g., mixer, instrument) to the INPUT (XLR or 1/4" TRS) on the rear panel of the subwoofer (Figure 4.4).
7. Connect Power: Ensure the power switch on the subwoofer is in the OFF position. Connect the power cable to the AC IN socket on the subwoofer and then to a suitable power outlet.
8. Adjust Speaker Angles/Height: Utilize the adjustable pole mount system to set the desired height and angle for the satellite speakers. This allows for optimal sound projection based on your venue and audience.

6. Operating Instructions

6.1. Powering On/Off

• To Power On: Ensure all connections are secure and input levels are set to minimum. Flip the power switch on the subwoofer to the ON position. The POWER indicator light will illuminate.
• To Power Off: Turn down all volume levels. Flip the power switch on the subwoofer to the OFF position.

6.2. Audio Input and Output

• Input: The subwoofer features balanced XLR and 1/4" TRS inputs for connecting your audio source.
• Link Out: Use the LINK OUT XLR connector to send the audio signal to another ALX-2824LA system or other powered speakers.
• SAT. OUT: These XLR outputs send the processed audio signal to the satellite line array speakers.

6.3. Volume Control

• SAT. LEVEL: Adjusts the output volume for the satellite speakers.
• SUB LEVEL: Adjusts the output volume for the subwoofer.
• Start with both levels at their minimum and gradually increase to achieve the desired balance and overall volume.

7. DSP Control and Presets

The ALX-2824LA features integrated Digital Signal Processing (DSP) with electronic crossovers, allowing for sound customization. The DSP control panel (Figure 4.4) provides access to various presets:

• DSP Presets: Use the DSP PRESETS button to cycle through optimized sound modes for different applications:
• 1. MUSIC: Optimized for general music playback, offering a balanced frequency response.
• 2. LIVE: Tailored for live performances, enhancing vocal clarity and instrument presence.
• 3. SPEECH: Designed to maximize speech intelligibility, reducing bass and emphasizing mid-range frequencies.
• Indicators: The DSP control panel also includes indicators for POWER, SIGNAL, and LIMIT, providing visual feedback on the system's operational status.

8. Maintenance

• Cleaning: Use a soft, dry cloth to clean the exterior surfaces of the speakers and subwoofer. Do not use abrasive cleaners or solvents.
• Storage: When not in use, store the system in a cool, dry place, away from direct sunlight and extreme temperatures. It is recommended to use the original packaging for transport and storage.
• Inspection: Periodically check all cables and connections for signs of wear or damage. Replace any damaged components immediately.

9. Troubleshooting

10. Specifications

11. Warranty and Support

Altec Lansing products are designed and manufactured to the highest quality standards. For information regarding warranty coverage, please refer to the warranty card included with your product or visit the official Altec Lansing website. For technical support, service, or replacement parts, please contact Altec Lansing customer service through their official channels.