1. Introduction
Thank you for choosing Focal R-690C 3-Way Coaxial Speakers. These high-quality car audio speakers are designed to deliver superior sound performance in your vehicle. Featuring a 6"x9" polypropylene woofer cone, Mylar dome mid-range driver, and tweeter, they provide a balanced and dynamic audio experience. This manual provides essential information for the proper installation, operation, and maintenance of your new speakers.
2. Safety Information
Please read all safety instructions carefully before installing and 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 to prevent short circuits.
- Ensure proper wiring polarity to avoid damage to the speakers and amplifier.
- Do not expose speakers to excessive moisture or extreme temperatures.
- Mount speakers securely to prevent them from becoming loose during vehicle operation.
- Consult a professional car audio installer if you are unsure about any installation steps.
- Avoid listening to audio at excessively high volumes for prolonged periods, as this can cause hearing damage.
3. What's in the Box
Verify that all components are present before proceeding with installation:
- Pair of Focal R-690C 6"x9" Coaxial Speakers
- Speaker Grilles (Pair)
- Mounting Hardware (Screws, clips, etc. - specific items may vary)
- Instruction Manual (This document)

This image displays the two Focal R-690C coaxial speakers, one with its protective grille installed and the other showing the speaker cone and tweeter assembly. The grilles are designed to protect the speaker components while allowing sound to pass through.

This image shows the retail box for the Focal R-690C speakers, highlighting the product name, model, and key features. The packaging ensures the speakers are protected during transit.
4. Setup and Installation
4.1. Mounting the Speakers
The Focal R-690C speakers are designed for standard 6"x9" openings. Ensure the mounting location in your vehicle provides sufficient depth and clearance for the speaker magnet and basket. The mounting depth is approximately 3-3/16 inches (81mm).
- Carefully remove the existing speakers or trim panels from the desired mounting location.
- Test fit the new Focal R-690C speakers to ensure proper alignment and clearance.
- Use the provided mounting screws to secure the speakers firmly in place. Do not overtighten.
- Install the protective grilles over the speakers if desired.

This image shows the rear view of two Focal R-690C speakers, revealing the robust steel basket and the large magnet structure. This view is important for understanding the speaker's mounting depth and terminal connections.
4.2. Wiring Connections
Proper wiring is crucial for optimal performance and to prevent damage. These speakers have an impedance of 4 ohms.
- Identify the positive (+) and negative (-) terminals on the speakers and your vehicle's wiring harness or amplifier.
- Connect the positive terminal of the speaker to the positive output of your amplifier/head unit.
- Connect the negative terminal of the speaker to the negative output of your amplifier/head unit.
- Ensure all connections are secure and insulated to prevent short circuits.
- It is recommended to use high-quality speaker wire of appropriate gauge for your power requirements.
5. Operating Your Speakers
Once installed and wired correctly, your Focal R-690C speakers are ready for use. These speakers are designed to handle a power range of 2-80 watts RMS (160 watts peak) each.
- Power Matching: Ensure your amplifier or head unit's power output is within the recommended RMS power range of the speakers to prevent underpowering or overpowering, both of which can cause damage.
- Volume Control: Start with a low volume and gradually increase it to a comfortable listening level. Avoid pushing the speakers to distortion, as this indicates they are being overdriven.
- Break-in Period: Like all new speakers, the Focal R-690C may benefit from a break-in period of several hours of normal use. This allows the speaker's suspension components to loosen up, potentially improving sound quality.
- Audio Settings: Adjust the equalizer and other audio settings on your head unit or amplifier to fine-tune the sound to your preference.
6. Maintenance and Care
Proper care will ensure the longevity and continued performance of your Focal R-690C speakers.
- Cleaning: Use a soft, dry cloth to gently wipe down the speaker grilles and surrounds. Avoid using harsh chemicals, solvents, or abrasive cleaners, as these can damage the materials.
- Protection: Keep the speakers free from dust, dirt, and debris. If installed in an exposed location, consider using the provided grilles for protection.
- Environmental Factors: While designed for automotive use, avoid prolonged exposure to extreme temperatures or direct sunlight, which can degrade speaker components over time.
- Professional Inspection: If you notice any unusual sounds or performance issues, it is advisable to have the speakers inspected by a qualified car audio technician.
7. Troubleshooting
If you experience issues with your speakers, refer to the table below for common problems and solutions.
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound from speakers | Loose or incorrect wiring; Amplifier off or in protect mode; Head unit issue. | Check all speaker wire connections for proper polarity and tightness. Verify amplifier power and status. Check head unit settings. |
| Distorted sound | Overdriving speakers (volume too high); Incorrect amplifier gain settings; Damaged speaker. | Reduce volume. Adjust amplifier gain to match head unit output. Inspect speaker cone for physical damage. |
| Weak or no bass | Incorrect wiring polarity; Phase issue; Speaker not sealed properly in enclosure. | Double-check wiring polarity. Ensure speakers are securely mounted and sealed. |
| Intermittent sound | Loose connections; Damaged wiring. | Inspect all wiring and connections for looseness or damage. |
8. Specifications
Detailed technical specifications for the Focal R-690C speakers:
| Feature | Detail |
|---|---|
| Speaker Type | 3-Way Coaxial |
| Woofer Size | 6"x9" (164x235mm) |
| Woofer Cone Material | Polypropylene |
| Surround Material | Butyl Rubber |
| Mid-range Driver | Mylar Dome |
| Tweeter | Mylar Dome |
| RMS Power Handling | 2-80 Watts per speaker |
| Peak Power Handling | 160 Watts per speaker |
| Frequency Response | 50-20,000 Hz |
| Sensitivity | 92 dB |
| Impedance | 4 Ohms |
| Mounting Depth | 3-3/16" (81mm) |
| Basket Type | Rigid Steel |
| Included Components | Pair of Speakers, Grilles |
| Product Dimensions (D x W x H) | 9.25"D x 6.46"W x 3.35"H |
| Item Weight | 10.2 Pounds |

This diagram illustrates the key dimensions of the Focal R-690C speaker, including its length and width, which are crucial for determining fit in a vehicle's speaker openings. The diagram shows a measurement of 7.9 inches (19 cm) across the shorter axis of the oval speaker.
9. Warranty and Support
9.1. Limited Warranty
Focal products are manufactured to the highest standards. The Focal R-690C speakers come with a Limited Warranty. Please refer to the warranty card included with your product or visit the official Focal website for detailed terms and conditions regarding coverage, duration, and claims procedures. Typically, this warranty covers defects in materials and workmanship under normal use.
9.2. Customer Support
For technical assistance, troubleshooting beyond this manual, or warranty inquiries, please contact Focal customer support. You can usually find contact information (phone, email, or support portal) on the official Focal website or through your authorized dealer. When contacting support, please have your product model number (R-690C) and proof of purchase readily available.
For more information, visit the Focal Store on Amazon.





