1. Introduction
This manual provides essential information for the safe and efficient installation, operation, and maintenance of the TOA Electronics IR-820SP Y Ceiling Speaker. Please read this manual thoroughly before using the product to ensure correct usage and to prevent damage or injury. Keep this manual for future reference.
2. Product Overview
The TOA Electronics IR-820SP Y is a ceiling-mounted powered speaker designed for use in environments such as classrooms, typically up to 10 meters in size. It integrates an infrared receiver and a 20W digital amplifier, delivering a wide frequency range of high-quality sound output. Its design features a full-range speaker component and a unique wide-dispersion acoustic structure for uniform sound coverage.
Key Features:
- Built-in infrared receiver and 20 W digital amplifier.
- Unique wide-dispersion acoustic structure ensures uniform output over a wide radius.
- Bass-reflex speaker system achieving a wide frequency range and high power-handling capability.
- Speaker Component: 4.72 in. (12 cm) cone-type.
- Finish Enclosure: Steel plate, plating.
- Easy installation with quick, optimally positioned ceiling mounting.
Figure 1: The TOA Electronics IR-820SP Y Ceiling Speaker. This image displays the speaker from a bottom-up perspective, highlighting its white speaker grille, black housing, and the silver cylindrical enclosure with white mounting brackets visible at the top. The design is optimized for flush ceiling installation.
3. Safety Information
Observe the following safety precautions to prevent personal injury or property damage.
- Installation: Installation should only be performed by qualified personnel. Incorrect installation may cause the unit to fall, resulting in personal injury or property damage.
- Power Source: Ensure the power source (24 V DC, supplied from IR-802T) matches the product's requirements. Using an incorrect power source can lead to malfunction or fire.
- Wiring: All wiring must comply with local electrical codes. Use only specified CAT-5 UTP cables for connection.
- Moisture: Do not expose the unit to rain or moisture to prevent fire or electric shock. This product is not waterproof.
- Foreign Objects: Do not insert metallic objects or flammable materials into the unit's openings.
- Maintenance: Refer all servicing to qualified service personnel. Do not attempt to repair this product yourself.
4. Setup and Installation
The IR-820SP Y is designed for easy and quick ceiling mounting. Follow these steps for proper installation:
4.1. Preparation
- Unpack: Carefully unpack the speaker and verify all included accessories are present: Safety wire (1), Ceiling reinforcement ring (1), Paper pattern (1).
- Location: Select an optimal ceiling location, ensuring sufficient clearance above the ceiling for the speaker's dimensions (Diameter: 12.6 in., Depth: 8.07 in.).
- Ceiling Hole: Use the provided paper pattern to mark and cut a mounting hole with a diameter of 11.81 inches in the ceiling material.
4.2. Wiring
- Cable Requirements: Use CAT-5 UTP cable for connection.
- Connection Terminal: Connect the CAT-5 UTP cable to the RJ-45 terminal on the speaker.
- Power Source: The speaker receives 24 V DC power from the IR-802T unit. Ensure the IR-802T is properly installed and connected according to its own manual.
4.3. Mounting
- Reinforcement Ring: If necessary, use the ceiling reinforcement ring to strengthen the mounting area.
- Safety Wire: Attach the safety wire to a secure point in the ceiling structure and to the designated attachment point on the speaker. This is a critical safety measure to prevent the speaker from falling.
- Insert Speaker: Carefully insert the speaker into the prepared ceiling hole. Engage the mounting clamps by tightening the screws on the speaker's frame. The clamps will pivot outwards and secure the speaker to the ceiling.
- Final Check: Ensure the speaker is firmly seated and flush with the ceiling surface.
5. Operating Instructions
The IR-820SP Y operates as part of an Infrared Wireless Microphone System, receiving audio signals via its built-in infrared receiver.
- Power On: Once installed and connected to the IR-802T unit, the speaker will power on automatically when the IR-802T is active.
- Infrared Reception: The speaker's infrared receiver is designed to pick up signals from compatible TOA infrared wireless microphones. Ensure line-of-sight or sufficient reflection paths for optimal signal reception.
- Carrier Frequencies: The infrared receiver operates on Channel A (3.100 MHz) and Channel B (3.350 MHz). Ensure your infrared microphones are set to compatible frequencies.
- Volume Control: Volume adjustments are typically managed at the source (e.g., the IR-802T unit or connected mixer), not directly on the speaker.
- System Integration: For detailed operation of the complete Infrared Wireless Microphone System, refer to the instruction manuals for the IR-802T and your specific TOA infrared microphones.
6. Maintenance
Regular maintenance ensures the longevity and optimal performance of your IR-820SP Y Ceiling Speaker.
- Cleaning: Wipe the speaker grille and housing with a soft, dry cloth. Do not use abrasive cleaners, solvents, or strong detergents, as these can damage the finish.
- Inspection: Periodically inspect the speaker for any visible damage, loose connections, or signs of wear. Ensure the mounting clamps are secure.
- Dust Accumulation: If dust accumulates on the speaker grille, gently remove it using a soft brush or a vacuum cleaner with a brush attachment.
- Professional Check: For any internal issues or complex repairs, contact a qualified service technician.
7. Troubleshooting
If you encounter issues with your IR-820SP Y speaker, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound output | No power to IR-802T; Loose cable connection; Microphone not transmitting; Incorrect microphone frequency. | Check power to IR-802T; Verify RJ-45 cable is securely connected; Ensure microphone is on and charged; Confirm microphone frequency matches speaker's channels. |
| Poor sound quality (distortion, low volume) | Microphone too far from receiver; Obstruction blocking infrared signal; Volume level too low at source; Faulty cable. | Reduce distance between microphone and speaker; Remove obstructions; Adjust volume on IR-802T or mixer; Inspect and replace cable if damaged. |
| Speaker not securely mounted | Mounting clamps not fully engaged; Incorrect hole size. | Retighten mounting screws to engage clamps; Ensure mounting hole matches specified diameter. If hole is too large, professional assistance may be required. |
If the problem persists after attempting these solutions, contact your dealer or a qualified service technician for assistance.
8. Specifications
| Model Number | IR-820SP Y |
| Speaker Type | Ceiling Speaker |
| Power Source | 24 V DC (supplied from IR-802T) |
| Rated Output | 20 W |
| Frequency Response | 100 Hz - 20 kHz (-10 dB) |
| Amplification System | Class D |
| Speaker Component | 4.72 in. (12 cm) cone-type |
| Infrared Wireless Receiver/Carrier Frequency | Channel A: 3.100 MHz, Channel B: 3.350 MHz |
| Mounting Hole Diameter | 11.81 in. |
| Cable Requirements | CAT-5 UTP |
| Connection Terminal | RJ-45 |
| Finish Enclosure | Steel plate, plating |
| Dimensions (Diameter x Depth) | 12.6 in. x 8.07 in. |
| Weight | 13.62 lbs. |
| Included Components | Safety wire (1), Ceiling reinforcement ring (1), Paper pattern (1) |
9. Warranty and Support
This product is manufactured by TOA Electronics. For specific warranty information, please refer to the warranty card included with your purchase or visit the official TOA Electronics website. In case of technical issues, service requests, or questions not covered in this manual, please contact your authorized TOA dealer or TOA Electronics customer support.
Please retain your proof of purchase for warranty claims.
