1. Introduction
Thank you for choosing Focal ICU-165 Integration Series 6.5 Inch Coaxial Speakers. These speakers are designed to deliver high-fidelity audio performance in your vehicle. This manual provides essential information for proper installation, operation, and maintenance to ensure optimal performance and longevity of your product.
2. Safety Instructions
Please read all safety instructions before installing or operating the speakers. Failure to follow these guidelines may result in injury or damage to the product or vehicle.
- Always disconnect the vehicle's battery before beginning any electrical work.
- Ensure all wiring is correctly connected and insulated to prevent short circuits.
- Do not install speakers in locations that obstruct vehicle operation or safety features.
- Use appropriate tools and protective gear during installation.
- Consult a professional installer if you are unsure about any part of the installation process.
3. Package Contents
Verify that all components are present in the package:
- Focal ICU-165 6.5 Inch Coaxial Speakers (Pair)
- Mounting hardware (screws, clips)
- Speaker grilles (if included with specific models)
- Instruction Manual
If any items are missing or damaged, contact your authorized Focal dealer immediately.
4. Setup and Installation
Proper installation is crucial for optimal sound quality and speaker longevity. These speakers are designed for in-car audio systems.
4.1 Speaker Placement and Mounting
The ICU-165 speakers are 6.5 inches in diameter and require a mounting depth of approximately 48.40 mm (1.9 inches). Ensure the chosen location in your vehicle provides adequate space and does not interfere with window mechanisms or other components.
Figure 1: Focal ICU-165 Coaxial Speakers (Pair)
Figure 2: Technical drawing showing dimensions for Focal ICU-165 speakers.
4.2 Wiring Connections
Connect the speaker wires to your amplifier or head unit. Observe correct polarity: connect the positive (+) terminal of the speaker to the positive output of the amplifier, and the negative (-) terminal of the speaker to the negative output. Incorrect polarity can lead to poor sound quality and reduced bass response.
- Positive Connection: Typically marked with a red wire or a '+' symbol.
- Negative Connection: Typically marked with a black wire or a '-' symbol.
4.3 Tweeter Adjustment
The ICU-165 speakers feature an AI/Mg inverted dome tweeter with a switch for adjusting the high-frequency response. This switch allows you to select between 'FLAT' and 'HIGH' settings to optimize the sound based on your listening preference and vehicle acoustics.
Figure 3: Top view of the speaker, highlighting the tweeter and its 'FLAT' / 'HIGH' adjustment switch.
- FLAT: Provides a neutral high-frequency response.
- HIGH: Boosts high frequencies for a brighter sound.
Experiment with both settings to find the one that best suits your audio system and personal taste.
5. Operating Instructions
Once installed, operate your Focal ICU-165 speakers through your vehicle's head unit or amplifier. Start with low volume levels and gradually increase to your desired listening level. Avoid excessive volume that causes distortion, as this can damage the speakers.
- Ensure your head unit's equalizer and sound settings are configured appropriately for coaxial speakers.
- For optimal performance, consider using a high-pass filter to protect the speakers from very low frequencies if you have a separate subwoofer.
6. Maintenance
Focal ICU-165 speakers require minimal maintenance to ensure long-lasting performance.
- Cleaning: Use a soft, dry cloth to gently wipe dust from the speaker cones and grilles. Avoid using harsh chemicals or abrasive cleaners.
- Inspection: Periodically check speaker connections for tightness and ensure no wires are frayed or exposed.
- Environmental Factors: While the speakers have a water-resistant level, avoid direct exposure to excessive moisture or extreme temperatures.
7. Troubleshooting
If you experience issues with your Focal ICU-165 speakers, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound from speakers | Incorrect wiring, loose connections, amplifier off, head unit settings. | Check all wiring connections for proper polarity and tightness. Ensure amplifier is powered on and head unit output is enabled. |
| Distorted sound | Volume too high, incorrect gain settings on amplifier, damaged speaker. | Reduce volume. Adjust amplifier gain settings. If distortion persists at moderate volumes, inspect speakers for physical damage. |
| Lack of bass | Incorrect wiring polarity, phase issues, inadequate enclosure. | Verify speaker wire polarity. Ensure speakers are in phase. While these are coaxial, proper mounting in a sealed environment helps bass response. |
| Harsh or dull treble | Tweeter adjustment switch setting, equalizer settings. | Adjust the 'FLAT' / 'HIGH' switch on the tweeter. Modify equalizer settings on your head unit. |
If the problem persists after attempting these solutions, contact your authorized Focal dealer or a qualified car audio technician.
8. Specifications
Detailed technical specifications for the Focal ICU-165 Integration Series 6.5 Inch Coaxial Speakers:
| Feature | Specification |
|---|---|
| Model | ICU165 |
| Speaker Type | Coaxial |
| Speaker Size | 6.5 Inches (Woofer Diameter) |
| Nominal Power (RMS) | 70 Watts |
| Maximum Power | 140 Watts |
| Impedance | 4 Ohm |
| Sensitivity (2.83V/1m) | 93 dB |
| Frequency Response | 60 Hz - 21 kHz |
| Tweeter | AI/Mg Inverted Dome |
| Mounting Depth | 48.40 mm (1.9 inches) |
| Material | Plastic (frame/basket) |
| Water Resistance Level | Water Resistant |
| Connectivity Technology | Wired (Coaxial) |
| Audio Output Mode | Stereo |
| Item Weight | 1.65 pounds (750 Grams) |
9. Warranty and Support
Focal ICU-165 speakers come with a Limited Warranty. For specific warranty terms and conditions, please refer to the warranty card included with your product or contact your authorized Focal dealer. Keep your purchase receipt as proof of purchase for warranty claims.
For technical support or service, please contact the dealer where you purchased the product. You can also visit the official Focal website for additional resources and contact information.
