LD Systems ICOA 12 A BT 12-Inch Active Coaxial PA Speaker with Bluetooth User Manual

1. Introduction

The LD Systems ICOA 12 A BT is a 12-inch active coaxial PA speaker designed for versatile audio applications. This loudspeaker features a coaxial design with a rotating, BEM-optimized CD horn and integrated DynX DSP presets, providing flexibility for various setups. It delivers a maximum SPL of 126 dB and 1200 W peak power, suitable for full-range sound, satellite configurations, or as a floor monitor. The integrated Bluetooth connectivity allows for wireless audio streaming.

Figure 1: Front-side view of the LD Systems ICOA 12 A BT speaker.

2. Safety Instructions

Please read these safety instructions carefully before operating the device. Keep this manual for future reference.

• Electrical Safety: Ensure the power supply voltage matches the requirements specified on the device. Do not expose the device to rain or moisture. Disconnect the power cord during lightning storms or when unused for long periods.
• Placement: Place the speaker on a stable, level surface or mount it securely using appropriate hardware. Avoid placing it near heat sources, direct sunlight, or in areas with excessive vibration.
• Handling: Do not open the device casing. Refer all servicing to qualified personnel. Avoid blocking ventilation openings.
• Hearing Protection: Prolonged exposure to high sound pressure levels can cause hearing damage. Use caution when operating the speaker at high volumes.

3. Package Contents

Verify that all items are present upon unpacking:

• 12-inch Powered Coaxial PA Loudspeaker with Bluetooth (ICOA 12 A BT)
• Power Cord
• User Manual (this document)

4. Product Overview

The ICOA 12 A BT features a robust design with intuitive controls and versatile connectivity options.

4.1. Design and Features

• Coaxial Design: The woofer and tweeter are aligned on the same axis, providing a coherent sound source.
• Rotating CD Horn: The BEM-optimized CD horn can be rotated, allowing for optimal dispersion whether the speaker is used vertically or horizontally.
• Horn-Loaded Woofer: Enhances bass reproduction.
• DynX DSP: Integrated digital signal processing with 4 presets, a 3-band EQ, and delay function for sound optimization.
• Bluetooth Connectivity: For wireless audio streaming from compatible devices.
• Dual Tilt Flange: Allows for precise angling when pole-mounted (0° or 5°).

Figure 2: Internal view illustrating the rotating CD horn mechanism.

4.2. Control Panel and Connections

The rear panel houses all controls and input/output connections.

Figure 3: Detailed view of the control panel.

• Volume Knob: Adjusts the overall output volume. Push for menu access.
• Display: Shows current settings, including volume, preset, and Bluetooth status.
• Input 1 & 2: XLR/TRS combo jacks for connecting audio sources. Each input has its own gain control.
• AUX IN: 3.5mm stereo input for connecting portable devices.
• SYSTEM OUT: XLR output for linking to other speakers or audio devices.
• Power Switch: Turns the unit on or off.
• Power Inlet: For connecting the AC power cord.

Figure 4: Rear view of the speaker with control panel and integrated handles.

5. Setup

Follow these steps to set up your ICOA 12 A BT speaker.

5.1. Placement

• Vertical Stand Mounting: Use the integrated dual tilt flange for pole mounting. The flange allows for 0° or 5° downward tilt to optimize sound projection.


Figure 5: Dual tilt flange for pole mounting (0° and 5°).

• Horizontal Monitor Use: The speaker's cabinet design allows it to be placed on its side for use as a floor monitor.


Figure 6: Speaker configured for horizontal monitor use.

• Suspended Systems: The speaker can also be integrated into suspended systems using appropriate rigging hardware (sold separately).

5.2. Power Connection

1. Ensure the power switch is in the OFF position.
2. Connect the supplied power cord to the power inlet on the rear panel and then to a suitable AC power outlet.

5.3. Audio Connections

1. Connect your audio source (mixer, microphone, instrument) to INPUT 1 or INPUT 2 using XLR or 1/4-inch TRS cables.
2. For portable devices, use the AUX IN (3.5mm stereo) connection.
3. To link multiple speakers, connect the SYSTEM OUT of the first speaker to an input on the next speaker.

6. Operating Instructions

6.1. Powering On/Off

1. Before powering on, ensure all volume controls are set to minimum.
2. Flip the power switch on the rear panel to the ON position. The display will illuminate.
3. To power off, set the power switch to the OFF position.

6.2. Adjusting Volume and Input Gain

1. Slowly increase the main VOLUME knob to achieve the desired overall output level.
2. Adjust the individual gain controls for INPUT 1 and INPUT 2 to balance the levels of connected sources.

6.3. Bluetooth Pairing

1. Activate Bluetooth on your source device (smartphone, tablet, etc.).
2. On the ICOA 12 A BT, navigate to the Bluetooth pairing menu using the VOLUME knob.
3. Select 'Pair' and search for 'LD Systems ICOA 12 A BT' on your source device.
4. Confirm pairing. The display will indicate a successful connection.

6.4. DSP Presets and EQ

The integrated DynX DSP offers 4 presets, a 3-band equalizer, and a delay function to optimize sound for different applications.

1. Push the VOLUME knob to enter the main menu.
2. Rotate the knob to navigate through options like 'Presets', 'EQ', and 'Delay'.
3. Select 'Presets' to choose from the available sound configurations (e.g., Fullrange, Monitor, Satellite).
4. Select 'EQ' to adjust the bass, mid, and treble frequencies as needed.
5. The 'Delay' function can be used for time alignment in multi-speaker setups.

7. Maintenance

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

• Cleaning: Use a soft, dry cloth to clean the exterior of the speaker. Do not use abrasive cleaners, solvents, or waxes.
• Storage: When not in use, store the speaker in a dry, dust-free environment.
• Inspection: Periodically check cables and connections for any signs of wear or damage.

8. Troubleshooting

If you encounter issues with your ICOA 12 A BT speaker, refer to the following common problems and solutions:

• No Sound:
  • Ensure the speaker is powered on and connected to a working power outlet.
  • Check all audio cable connections.
  • Verify that input and master volume levels are not set to minimum.
  • Test with a different audio source or cable.
• Bluetooth Not Connecting:
  • Ensure Bluetooth is enabled on both the speaker and your source device.
  • Make sure the speaker is in pairing mode.
  • Move the source device closer to the speaker to ensure it is within range.
  • Try unpairing and re-pairing the devices.
• Distorted Sound:
  • Reduce the input gain or master volume to prevent clipping.
  • Check the audio source for distortion.
  • Ensure cables are not damaged.

9. Specifications

Technical specifications for the LD Systems ICOA 12 A BT speaker:

10. Warranty and Support

The LD Systems ICOA 12 A BT comes with a limited warranty. For detailed warranty information, terms, and conditions, please refer to the official LD Systems website or contact their customer support.

For technical support, service, or inquiries, please visit the official LD Systems website or contact their authorized service centers. Keep your purchase receipt as proof of purchase for warranty claims.