Introduction
The JBL Professional AC18/95 is a high-output, 2-way compact loudspeaker system designed for professional audio installations. It combines flexibility with high fidelity, making it suitable for various sound reinforcement applications. This manual provides essential information for the proper setup, operation, and maintenance of your AC18/95 loudspeaker.
Key features include:
- Frequency Range: 52 Hz - 20 kHz (-10 dB)
- Power Rating: 250W Continuous Pink Noise, 500W Program, 1000W Peak
- Durable and compact enclosure
- Dual Neutrik NL4 connectors plus screw terminal for versatile connectivity
- Attachment points for optional U-bracket, third-party Omni Mount type bracket, and stand mount accessory
Figure 1: Front view of the JBL Professional AC18/95 Compact 8-Inch 2-way Loudspeaker.
Setup
Proper setup is crucial for optimal performance and safety. Ensure all connections are secure before operating the loudspeaker.
1. Unpacking and Inspection
Carefully remove the loudspeaker from its packaging. Inspect the unit for any signs of damage that may have occurred during shipping. If damage is found, contact your dealer immediately.
2. Placement
Position the loudspeaker in a location that provides the desired sound coverage and is structurally sound to support its weight. Consider the 90° x 50° coverage pattern when determining placement.
3. Mounting Options
The AC18/95 offers several mounting options:
- U-Bracket: Utilize the integrated attachment points for an optional U-bracket for wall or ceiling mounting.
- Omni Mount Type Bracket: Compatible with third-party Omni Mount type brackets.
- Stand Mount: An accessory for stand mounting is available.
Always ensure that mounting hardware is rated for the loudspeaker's weight and that installation is performed by qualified personnel following local safety regulations.
4. Audio Connections
Connect the loudspeaker to a suitable amplifier using high-quality speaker cables. The AC18/95 features dual Neutrik NL4 connectors and screw terminals for flexible wiring. Ensure correct polarity (+ to + and - to -) for all connections.
- Neutrik NL4: Use professional speaker cables with NL4 connectors for secure and reliable connections.
- Screw Terminals: For permanent installations, use the screw terminals. Ensure bare wire is properly inserted and secured without stray strands.
Operating
The JBL AC18/95 is a passive loudspeaker and requires an external amplifier. Follow these general guidelines for operation:
1. Amplifier Matching
Ensure your amplifier's power output matches the loudspeaker's power handling capabilities. The AC18/95 has a program power rating of 500W and a peak power rating of 1000W at 8 Ohms impedance. Using an underpowered or overpowered amplifier can lead to damage.
2. Signal Chain
Connect your audio source (mixer, processor) to the amplifier's input, and then connect the amplifier's output to the AC18/95 loudspeaker. Ensure all volume controls are at their minimum before powering on equipment.
3. Power On/Off Sequence
To prevent transient pops and potential damage, always power on your audio system in the following order:
- Audio sources (e.g., mixer, media player)
- Audio processors (e.g., EQ, crossover)
- Amplifiers
When powering off, reverse the sequence: Amplifiers first, then processors, then sources.
4. Level Setting
Gradually increase the amplifier's volume to the desired listening level. Avoid driving the amplifier into clipping (distortion), as this can severely damage the loudspeaker drivers.
Maintenance
Regular maintenance helps ensure the longevity and optimal performance of your JBL AC18/95 loudspeaker.
1. Cleaning
Clean the exterior of the loudspeaker with a soft, dry cloth. For stubborn dirt, a slightly damp cloth can be used, followed by drying. Avoid using harsh chemicals, solvents, or abrasive cleaners, as these can damage the finish and components.
2. Inspection
Periodically inspect the loudspeaker for any signs of wear or damage, including:
- Loose or damaged grille
- Frayed or damaged cables
- Loose mounting hardware
- Unusual noises or vibrations during operation
Address any issues promptly to prevent further damage.
3. Storage
If storing the loudspeaker for an extended period, keep it in a cool, dry environment, away from direct sunlight and extreme temperatures. Protect it from dust and moisture.
Troubleshooting
This section provides solutions to common issues you might encounter with your AC18/95 loudspeaker.
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound from loudspeaker |
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| Distorted sound |
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| Intermittent sound |
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Specifications
Detailed technical specifications for the JBL Professional AC18/95 Compact 8-Inch 2-way Loudspeaker.
Figure 2: Dimensions of the JBL Professional AC18/95 Loudspeaker.
| Feature | Specification |
|---|---|
| Model Name | AC18/95 |
| Brand | JBL |
| Speaker Type | 2-way Loudspeaker (Woofer) |
| Frequency Range | 52 Hz - 20 kHz (-10 dB) |
| Power Rating | 250W Cont. Pink Noise, 500W Program, 1000W Peak |
| Impedance | 8 Ohm |
| Product Dimensions (D x W x H) | 14" x 13" x 20" (35.56 cm x 33.02 cm x 50.8 cm) |
| Item Weight | 28 pounds (12.7 kg) |
| Speaker Size | 8 Inches |
| Woofer Diameter | 8 Inches |
| Tweeter Diameter | 25 Millimeters (1-inch exit compression driver) |
| Coverage Pattern | 90° x 50° |
| Connectivity Technology | Neutrik NL4, Screw Terminals |
| Audio Output Mode | Stereo (when used in pairs) |
| Mounting Type | Floor Standing (with accessory), Wall/Ceiling (with U-bracket/Omni Mount) |
| Color | Black |
| UPC | 691991002113 |
Warranty
The JBL Professional AC18/95 Loudspeaker comes with a Limited Warranty. For specific terms, conditions, and duration of the warranty, please refer to the official JBL Professional website or the warranty card included with your product. Keep your proof of purchase for warranty claims.
Support
For further assistance, technical support, or service inquiries, please visit the official JBL Professional website or contact their customer service department. You can also find more information and products at the JBL Store.
