1. Introduction
The JBL Professional Control 28-1-WH is a high-output indoor/outdoor background/foreground speaker designed for versatile audio applications. This manual provides essential information for the proper installation, operation, and maintenance of your speaker to ensure optimal performance and longevity.
Engineered for superior sound quality, the Control 28-1-WH offers broad sound coverage and robust power handling, making it suitable for various commercial and residential settings.
2. Product Features
- High Power Handling: 120 Watt (240 Watt program) in direct 8Ω setting, with a built-in 60 Watt 70V/100V multi-tap transformer for demanding audio environments.
- Superior Sound Quality: Features an 8-inch woofer with a woven fiberglass cone and a 1-inch PEI diaphragm tweeter with fluid cooling, delivering high fidelity sound and a broad frequency response of 45 Hz – 20 kHz.
- Wide Coverage: Provides 100° x 100° consistent coverage for immersive audio across your space.
- Weather-Resistant Design: Contemporary, high-design components suitable for indoor or outdoor use in various weather conditions.
- Flexible Installation: Includes built-in InvisiBall mounting hardware and supports an optional U-bracket (sold separately) for wall, ceiling, or post mounting.
3. What's in the Box
- JBL Professional Control 28-1-WH High Output Indoor/Outdoor Background/Foreground Speaker, White
4. Setup & Installation
The Control 28-1-WH speaker is designed for flexible installation in various indoor and outdoor settings. It comes equipped with built-in InvisiBall mounting hardware for secure and adjustable placement.
4.1 Mounting Options
The InvisiBall mounting system allows for precise aiming of the speaker. An optional U-bracket (sold separately) can also be used for alternative mounting configurations on walls, ceilings, or posts.
4.2 Wiring Connections
The speaker supports both direct 8Ω impedance connections and 70V/100V constant voltage systems via its multi-tap transformer. Ensure correct polarity when connecting speaker wires to your amplifier.
For 70V/100V systems, select the appropriate tap setting on the speaker's transformer to match your system's power requirements. For 8Ω operation, ensure the transformer is set to the 8Ω bypass setting.
4.3 Weather Resistance
The Control 28-1-WH features weather-resistant components, making it suitable for outdoor installation. However, proper installation under eaves or protective overhangs is recommended to maximize longevity and performance in harsh weather conditions.
5. Operation
Once properly installed and connected to a compatible amplifier, the JBL Control 28-1-WH speaker delivers high-quality audio. The speaker is passive and requires an external amplifier for operation.
5.1 Powering On/Off
The speaker itself does not have a power switch. Power is controlled via the connected amplifier. Ensure your amplifier is turned off before making any connections.
5.2 Audio Playback
Begin playback at a low volume level on your amplifier and gradually increase it to your desired listening level. The speaker is designed to handle up to 120 Watts continuous power (240 Watts program) at 8Ω, or 60 Watts in 70V/100V modes.
While some specifications may list Bluetooth connectivity, the JBL Control 28-1-WH is primarily designed for wired audio connections to an amplifier. For wireless audio, an external Bluetooth receiver connected to your amplifier would be required.
6. Maintenance
To ensure the longevity and optimal performance of your JBL Control 28-1-WH speakers, follow these maintenance guidelines:
- Cleaning: Regularly wipe down the speaker enclosures with a soft, damp cloth. Avoid using harsh chemicals or abrasive cleaners, as these can damage the finish or grille.
- Connection Checks: Periodically inspect all wiring connections for tightness and corrosion, especially in outdoor installations. Loose connections can lead to poor sound quality or intermittent operation.
- Environmental Protection: While weather-resistant, prolonged exposure to direct sunlight, heavy rain, or extreme temperatures can affect the speaker's lifespan. Consider additional protective measures or repositioning if exposed to severe conditions.
7. Troubleshooting
If you experience issues with your JBL Control 28-1-WH speakers, refer to the following common troubleshooting steps:
- No Sound:
- Verify that the amplifier is powered on and functioning correctly.
- Check all speaker wire connections at both the amplifier and the speaker terminals for secure contact and correct polarity.
- Ensure the correct input source is selected on your amplifier.
- If using 70V/100V, confirm the transformer tap setting is appropriate for your system and that the amplifier is designed for constant voltage output.
- Distorted Sound:
- Reduce the volume level on your amplifier. Overdriving the speakers can cause distortion.
- Check speaker wire connections for any frayed strands that might be shorting out.
- Inspect the speaker cones for any visible damage.
- Intermittent Sound:
- Check all connections for looseness.
- Ensure speaker wires are not damaged or pinched.
If these steps do not resolve the issue, please contact JBL Professional customer support for further assistance.
8. Specifications
| Specification | Value |
|---|---|
| Brand | JBL |
| Model Name | CONTROL 28-1-WH |
| Speaker Type | Indoor / Outdoor |
| Speaker Size | 8 Inches |
| Woofer Diameter | 8 Inches |
| Tweeter Diameter | 1 Inches |
| Speaker Maximum Output Power | 240 Watts (Program) |
| Wattage | 120 Watts (Continuous) |
| Input Voltage | 70V/100V (with multi-tap transformer) or 8Ω |
| Frequency Response | 45 Hz – 20 kHz |
| Connectivity Technology | Coaxial (Wired) |
| Mounting Type | Wall Mount, Ceiling Mount (InvisiBall hardware included) |
| Material | Fiberglass, Polyetherimide (PEI) |
| Color | White |
| Item Weight | 16.6 Pounds |
| Product Dimensions | 8.6"D x 11.1"W x 15.2"H |
| Is Waterproof | True |
| UPC | 691991002052 |
9. Warranty & Support
This JBL Professional Control 28-1-WH speaker is covered by a Manufacturer Warranty. For specific details regarding warranty coverage, duration, and how to make a claim, please refer to the warranty documentation included with your product or visit the official JBL Professional website.
For technical support, troubleshooting assistance, or service inquiries, please contact JBL Professional customer support through their official channels.
