JBL Stage2 GEN2 45F 4-Inch 2-Way Coaxial Car Speakers Instruction Manual

1. Important Safety Information

Please read all instructions carefully before installing and using your JBL Stage2 GEN2 45F car speakers. Keep this manual for future reference.

• Professional Installation Recommended: Car audio installation can be complex. If you are unsure, seek professional assistance.
• Disconnect Battery: Always disconnect the vehicle's negative battery terminal before starting any electrical work to prevent short circuits.
• Wiring: Ensure all wiring is correctly connected and insulated to prevent damage to the speakers or vehicle's electrical system.
• Mounting: Securely mount speakers to prevent them from becoming loose during vehicle operation, which could cause injury or damage.
• Volume Levels: Prolonged exposure to high volume levels can cause hearing damage. Adjust volume to a safe and comfortable level.
• Environmental Conditions: These speakers are not waterproof. Avoid exposure to water or excessive moisture.

2. Package Contents

Verify that all items are present in the package before beginning installation:

• 2 x JBL Stage2 GEN2 45F 4-inch 2-Way Coaxial Car Speakers
• 8 x Mounting Screws
• 8 x Speed Clips
• 2 x Foam Gaskets
• 1 x Instruction Manual (this document)

Image: Contents of the JBL Stage2 GEN2 45F speaker package.

3. Product Overview

The JBL Stage2 GEN2 45F are 4-inch (100mm) 2-way coaxial car speakers designed to provide enhanced audio performance for compact factory upgrades. They feature a Plus One™ polypropylene woofer and a PEI dome tweeter, delivering clear highs and robust mid-range sound.

These speakers are engineered for a compact, frontless fit, making them ideal for vehicles with existing speaker grilles and tight factory cutouts. They handle 40W RMS and 210W Peak Power, suitable for both stock and upgraded audio systems.

Image: Front view of the JBL Stage2 GEN2 45F speaker.

Image: Side view of the JBL Stage2 GEN2 45F speaker.

Image: Angled view of the JBL Stage2 GEN2 45F speaker.

4. Installation Guide

The JBL Stage2 GEN2 45F speakers are designed for flush mounting in 4-inch (100mm) openings. Their slim profile allows for installation in tight factory speaker cutouts without modifications.

4.1. Pre-Installation Steps

1. Vehicle Preparation: Park your vehicle on a level surface and engage the parking brake.
2. Disconnect Power: Disconnect the negative terminal of your vehicle's battery.
3. Access Speaker Location: Carefully remove any panels, grilles, or trim necessary to access the factory speaker locations. Refer to your vehicle's service manual for specific instructions.
4. Remove Old Speakers: Disconnect the wiring from the existing speakers and remove them from their mounting locations.

4.2. Mounting the Speakers

1. Check Fitment: Ensure the JBL Stage2 GEN2 45F speakers fit into the existing 4-inch (100mm) openings. The speakers are designed for a frontless installation, meaning they do not include separate grilles and are intended to be used with the vehicle's existing grille system.
2. Apply Gaskets: Place the foam gaskets around the speaker frame to ensure a tight seal and reduce vibrations.
3. Position Speaker: Carefully place the speaker into the mounting opening. Align the mounting holes on the speaker frame with the screw holes in the vehicle.
4. Secure Speaker: Use the provided mounting screws and speed clips to secure the speaker firmly in place. Do not overtighten the screws, as this can damage the speaker frame.

4.3. Wiring Connections

1. Identify Polarity: Connect the positive (+) terminal of the speaker to the positive (+) output wire from your car's audio system (typically marked with a stripe or different color). Connect the negative (-) terminal of the speaker to the negative (-) output wire. Incorrect polarity can result in poor sound quality.
2. Secure Connections: Ensure all connections are tight and properly insulated to prevent short circuits and signal loss.

4.4. Post-Installation

1. Reassemble: Reinstall any removed panels, grilles, or trim.
2. Reconnect Battery: Reconnect the negative terminal of your vehicle's battery.
3. Test System: Turn on your car's audio system and test the speakers at a low volume. Gradually increase the volume to ensure proper operation and sound quality.

Image: Technical dimensions for JBL Stage2 GEN2 45F speaker installation.

5. Operation

Once properly installed, your JBL Stage2 GEN2 45F speakers will deliver clear and dynamic stereo audio. These 2-way coaxial speakers are designed to reproduce a wide frequency range, from 80 Hz to 20 kHz, ensuring both bass and treble are well-represented.

• Power Handling: The speakers can handle a continuous RMS power of 40 Watts and a peak power of 210 Watts. Ensure your amplifier or head unit's output matches these specifications to prevent damage.
• Impedance: With a 4 Ohm impedance, these speakers are compatible with most car audio amplifiers and head units.
• Sound Adjustment: Use your car's audio system controls (bass, treble, balance, fader) to fine-tune the sound to your preference.
• Compatible Devices: These speakers are suitable for connection to car radios (AM/FM/DAB/BT/AUX) and external amplifiers.

6. Maintenance

Proper maintenance will ensure the longevity and optimal performance of your JBL Stage2 GEN2 45F speakers.

• Cleaning: Use a soft, dry cloth to gently wipe the speaker cones and frames. Avoid using harsh chemicals or abrasive cleaners.
• Avoid Moisture: As these speakers are not waterproof, protect them from direct exposure to water or excessive humidity.
• Check Connections: Periodically inspect wiring connections to ensure they remain secure and free from corrosion.
• Environmental Protection: Avoid exposing speakers to extreme temperatures or direct sunlight for extended periods, which can degrade materials over time.

7. Troubleshooting

If you encounter issues with your JBL Stage2 GEN2 45F speakers, refer to the following common troubleshooting steps:

If these steps do not resolve the issue, contact JBL customer support or a qualified car audio technician.

8. Specifications

9. Warranty and Support

Your JBL Stage2 GEN2 45F speakers come with a limited manufacturer's warranty.

• Warranty Type: Limited
• Manufacturer Warranty: 2 years
• Spare Parts Availability: 2 years

For warranty claims, technical assistance, or further support, please contact JBL customer service or visit the official JBL website. You can also visit the JBL Store on Amazon for more information.