Introduction
The TOA SR-S4S is a high-performance, two-way line array speaker system designed for short-distance sound transmission. Its unique design allows for precise sound projection and consistent audio levels across various distances. This manual provides essential information for the proper setup, operation, and maintenance of your SR-S4S speaker system.
Safety Information
Always observe the following safety precautions to prevent personal injury and damage to the equipment:
- Power Source: Ensure the speaker is connected to a power source that matches its voltage requirements.
- Ventilation: Do not block ventilation openings. Ensure adequate airflow around the unit to prevent overheating.
- Moisture: Keep the speaker away from water or excessive moisture. This product is not waterproof.
- Mounting: When mounting, ensure the structure can support the speaker's weight (approximately 16 kg / 42.8 pounds). Use appropriate mounting hardware and follow all local building codes.
- Servicing: Do not attempt to service this product yourself. Refer all servicing to qualified service personnel.
Product Overview
The SR-S4S speaker system is engineered for optimal sound distribution, featuring a robust design and advanced acoustic components.
Image: Front view of the TOA SR-S4S Short Throw 2-Way Line Array Speaker System. The speaker is a tall, slender, rectangular unit with a perforated metal grille covering the front face. The enclosure is light gray, and visible bolts secure the side panels. The TOA logo is subtly visible near the bottom of the grille.
Key Features:
- Equipped with eight 10cm woofers for powerful low-frequency output.
- Features 24 small tweeters for clear high-frequency sound reproduction.
- Linear sound source effect minimizes energy attenuation over distance, enhancing long-distance sound projection.
- Suppressed vertical sound dispersion directs sound precisely to the target area.
- Maintains consistent sound pressure levels, preventing excessive loudness near the speaker.
- Allows for configuration of longer sound sources by joining 2 or 3 speakers, increasing projection distance and volume.
- Includes a built-in network circuit for single amplifier drive.
- Can be converted to a bi-amplifier drive system by modifying internal connections.
- Supports high-impedance applications with the optional MT-S0601 Matching Transformer.
Setup
Follow these steps for the initial setup of your SR-S4S speaker system:
- Unpacking: Carefully remove the speaker from its packaging. Inspect for any signs of damage during transit.
- Placement: Position the speaker in the desired location. Ensure it is on a stable, level surface or securely mounted according to professional installation guidelines. Consider the speaker's directivity angle (90° Horizontal / 10° Vertical) for optimal sound coverage.
- Connection: Connect the speaker to your amplifier using appropriate speaker cables. The SR-S4S features M5 screw terminals and Neutrik NL4MP x2 input connectors. Ensure correct polarity (+ to + and - to -).
- Optional Bi-Amping: If using a bi-amplifier drive system, refer to the detailed wiring diagram in the advanced setup guide (not included in this manual) for internal connection changes.
- Optional Matching Transformer: For high-impedance applications, install the optional MT-S0601 Matching Transformer as per its instructions.
- Power On: Once all connections are secure, power on your amplifier and audio source. Start with the volume at its lowest setting.
Operating
Operating the SR-S4S is straightforward once properly set up:
- Volume Control: Adjust the volume level using your amplifier's controls. Avoid setting the volume too high, which can cause distortion or damage to the speaker.
- Sound Optimization: For optimal sound quality, consider using a digital processor like the DP-0206 (optional) to fine-tune the frequency response.
- System Integration: The SR-S4S is designed to integrate seamlessly into various audio setups, from small venues to larger installations requiring precise sound projection.
Maintenance
Regular maintenance ensures the longevity and performance of your SR-S4S speaker system:
- Cleaning: Use a soft, dry cloth to wipe down the exterior of the speaker. Do not use abrasive cleaners, solvents, or excessive moisture.
- Inspection: Periodically check all cable connections for tightness and signs of wear. Ensure mounting hardware remains secure.
- Storage: If storing the speaker for an extended period, keep it in a dry, temperature-controlled environment, ideally in its original packaging or a protective cover.
Troubleshooting
If you encounter issues with your SR-S4S speaker, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound output | Loose or incorrect cable connections Amplifier not powered on Incorrect input selection on amplifier | Check all speaker and amplifier connections. Ensure amplifier is powered on and functioning. Verify correct input source is selected on amplifier. |
| Distorted sound | Volume too high Damaged speaker cable Amplifier clipping | Reduce volume level. Inspect speaker cables for damage; replace if necessary. Check amplifier's output level and ensure it's not overdriven. |
| Intermittent sound | Loose connection Faulty cable | Secure all connections. Try a different speaker cable to isolate the issue. |
If the problem persists after attempting these solutions, contact TOA customer support or a qualified service technician.
Specifications
| Feature | Detail |
|---|---|
| Enclosure Type | Bass-reflex type |
| Power Handling Capacity | Continuous program 600W |
| Rated Impedance | 8Ω |
| Sensitivity (1W, 1m) | 93dB |
| Frequency Response | 70-20000Hz (when using DP-0206 (option)) |
| Crossover Frequency | 3500Hz |
| Directivity Angle | Horizontal: 90°, Vertical: 10° |
| Low Frequency Component | 10cm cone-type x8 |
| High Frequency Component | 2.5cm balanced dome-type x24 |
| Input Connectors | M5 screw terminal, distance between barriers: 12.2mm and Neutrik NL4MP x2 |
| Dimensions (W x H x D) | 160 x 892 x 303mm (6.3 x 35.1 x 11.9 inches) |
| Weight | 16 kg (35.3 lbs) / Item Weight: 42.8 pounds (from product data) |
| Model Number | SR-S4S |
Warranty and Support
For warranty information, please refer to the warranty card included with your product or visit the official TOA website. For technical support, replacement parts, or service inquiries, please contact TOA customer service through their official channels. Provide your product model number (SR-S4S) and serial number when contacting support.
TOA Electronics
Manufacturer of the SR-S4S Line Array Speaker System.
