1. Introduction
Thank you for choosing the Kuerl K-502 5-inch Full Range Multimedia Car Coaxial Speakers. These speakers are designed to deliver high-quality audio performance for your car's sound system. This manual provides essential information for the proper installation, operation, and maintenance of your new speakers to ensure a satisfying listening experience.
2. Safety Information
- Always disconnect the vehicle's battery before performing any electrical work to prevent short circuits and electrical shock.
- Ensure all wiring is properly insulated and secured to prevent damage from vibration or contact with sharp edges.
- Do not install speakers in locations that obstruct the driver's view or interfere with vehicle safety features (e.g., airbags).
- Avoid exposing speakers to excessive moisture or extreme temperatures.
- If you are unsure about any installation steps, consult a professional car audio installer.
3. Package Contents
Your Kuerl K-502 speaker package should include:
- 2 x Kuerl K-502 5-inch Coaxial Speakers
- 2 x Speaker Grilles
- Mounting Hardware (screws, clips, etc. - exact contents may vary)
4. Product Overview
Familiarize yourself with the components of your Kuerl K-502 speakers.
5. Specifications
| Feature | Specification |
|---|---|
| Model Number | K-502 (GTO502) |
| Product Type | Coaxial Speaker |
| Speaker Size | 5 inch (130mm) |
| RMS Power | 20W |
| Max Power | 90W |
| Frequency Response | 65Hz ~ 21kHz |
| Sensitivity (Max. SPL) | 90dB |
| Impedance | 4Ω |
| Voltage | DC 12V |
| Cone Material | Foam Surround |
| Color | BLACK |
| Weight (per pair) | Approx. 2kg |
| Certification | CE |
6. Installation Guide
Proper installation is crucial for optimal sound performance and speaker longevity. It is highly recommended to have these speakers installed by a qualified car audio professional.
6.1 Pre-Installation Checks
- Verify that the speaker size (5-inch) is compatible with your vehicle's speaker openings. Refer to the dimensions image in Section 4.
- Ensure you have all necessary tools and wiring.
- Disconnect the vehicle's negative battery terminal before starting.
6.2 Mounting the Speakers
- Carefully remove the existing speakers or access the speaker mounting locations in your vehicle (e.g., door panels, rear deck).
- Place the Kuerl K-502 speaker into the opening. Ensure a snug fit without forcing.
- Use the provided mounting screws to secure the speaker firmly in place. Do not overtighten.
- If desired, attach the protective speaker grille over the installed speaker.
6.3 Wiring Connections
The Kuerl K-502 speakers have standard positive (+) and negative (-) terminals. Ensure correct polarity for optimal sound quality.
- Connect the positive (+) terminal of the speaker to the positive (+) speaker wire from your car's amplifier or head unit.
- Connect the negative (-) terminal of the speaker to the negative (-) speaker wire from your car's amplifier or head unit.
- Double-check all connections for tightness and proper insulation.
6.4 Post-Installation
- Reconnect the vehicle's negative battery terminal.
- Test the speakers with your car's audio system at a low volume first, gradually increasing to ensure proper function and sound quality.
7. Operating Instructions
Once installed, your Kuerl K-502 speakers will function as part of your car's audio system. Operate them through your car's head unit or amplifier controls.
- Volume Control: Adjust the volume to a comfortable listening level. Avoid excessively high volumes for prolonged periods to prevent speaker damage and hearing loss.
- Tone Controls: Use your head unit's bass, treble, and balance controls to fine-tune the sound to your preference.
- Fader Control: Adjust the front-to-rear sound balance if you have multiple sets of speakers.
8. Maintenance
To ensure the longevity and performance of your Kuerl K-502 speakers, follow these simple maintenance guidelines:
- Cleaning: Gently wipe the speaker grilles and surrounds with a soft, dry cloth. Do not use harsh chemicals or abrasive cleaners.
- Protection: Keep the speakers free from dust, dirt, and debris. The included grilles help protect the speaker cones from physical damage.
- Environmental Factors: While designed for automotive use, extreme heat or cold can affect speaker performance over time.
9. Troubleshooting
If you encounter issues with your Kuerl K-502 speakers, try the following troubleshooting steps:
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound from speaker | Loose or incorrect wiring connection | Check all speaker wire connections at both the speaker and the head unit/amplifier. Ensure correct polarity. |
| Distorted sound | Volume too high; improper gain settings on amplifier; damaged speaker wire | Reduce volume. Check amplifier gain settings. Inspect speaker wires for damage. |
| Weak or unbalanced sound | Fader/balance settings incorrect; incorrect wiring | Adjust fader and balance controls on your head unit. Verify all wiring connections are correct. |
| Intermittent sound | Loose connection; faulty wiring | Check and secure all wiring connections. Replace any damaged wires. |
10. User Tips
- Many users have praised the Kuerl K-502 for its good sound quality and powerful output, making it a great upgrade for car audio systems.
- The speakers are noted for their high quality construction.
11. Frequently Asked Questions (FAQ)
- Q: Are the Kuerl K-502 speakers compatible with all car audio systems?
- A: The K-502 speakers are designed for universal car audio applications with a 12V DC power supply and 4Ω impedance. Ensure your head unit or amplifier can support these specifications.
- Q: Are the products tested before delivery?
- A: Yes, Kuerl performs 100% testing on all goods before delivery to ensure quality.
12. Warranty and Support
The Kuerl K-502 speakers come with a 1-year warranty from the date of purchase. This warranty covers manufacturing defects and material flaws under normal use.
For technical support, warranty claims, or any questions regarding your Kuerl K-502 speakers, please contact your retailer or the manufacturer directly. Keep your proof of purchase for warranty service.
