Introduction
Thank you for choosing KICKER 47KSC504 KSC50 5.25-inch Coaxial Car Stereo Speakers. These speakers are designed to deliver high-quality audio performance in your vehicle. This manual provides essential information for proper installation, operation, and maintenance to ensure optimal performance and longevity of your speakers.
Safety Information
Please read all instructions carefully before installation and use. Failure to follow these safety guidelines may result in injury or damage to the product or vehicle.
- Always disconnect the vehicle's battery before performing any electrical work.
- Ensure all wiring is properly insulated and secured to prevent short circuits and damage.
- Do not install speakers in locations that obstruct vehicle operation or safety features.
- Wear appropriate safety gear, including eye protection, during installation.
- Consult a professional car audio installer if you are unsure about any part of the installation process.
- Avoid prolonged exposure to excessively loud audio levels, which can cause hearing damage.
Package Contents
Verify that all items are present in the package:
- 2 x KICKER 47KSC504 KSC50 5.25-inch Coaxial Speakers
- Mounting Hardware (screws, clips - specific items may vary)
- Speaker Wire (if included)

Image: A pair of KICKER 47KSC504 KSC50 5.25-inch coaxial speakers, showing the front grilles and tweeter design.
Setup and Installation
The KICKER KSC50 speakers feature a thin-mount design, allowing for easier installation in various vehicle applications, often fitting behind factory grilles. Proper installation is crucial for optimal sound quality and speaker longevity.
General Installation Steps:
- Preparation: Disconnect the vehicle's negative battery terminal. Remove existing speakers or access the speaker mounting locations.
- Mounting: Carefully place the KSC50 speakers into the desired mounting locations. Ensure a secure fit. Use the provided mounting hardware. The speakers are designed for a 5.25-inch opening.
- Wiring: Connect the speaker wires to the vehicle's audio system. Pay close attention to polarity (+ to + and - to -) to ensure correct phase and sound reproduction. The KSC50 speakers have a 4-Ohm impedance.
- Testing: Before reassembling the vehicle's interior, reconnect the battery and test the speakers at a low volume. Verify that sound is clear and coming from all installed speakers.
- Final Assembly: Once tested, secure all panels and trim pieces.
For detailed vehicle-specific instructions, refer to your vehicle's service manual or consult a professional installer.

Image: Rear view of a KICKER 47KSC504 KSC50 speaker, highlighting the wiring terminals and magnet structure.

Image: Side profile view of two KICKER 47KSC504 KSC50 speakers, illustrating their thin-mount design for easy installation.
Operating Instructions
Once installed, your KICKER KSC50 speakers will operate as part of your vehicle's audio system. Follow these guidelines for optimal performance:
- Head Unit Settings: Adjust the equalizer and balance/fader settings on your car stereo (head unit) to achieve your preferred sound.
- Amplifier Settings (if applicable): If using an external amplifier, ensure its gain settings are properly matched to your head unit's output to prevent distortion and speaker damage.
- Volume Control: Avoid operating the speakers at excessively high volumes for extended periods, especially if distortion is audible. Distortion indicates that the speakers or amplifier are being overdriven, which can cause permanent damage.
- Break-in Period: Allow a short break-in period (typically a few hours of normal listening) for the speaker components to loosen up and achieve their full sound potential.
Maintenance
KICKER KSC50 speakers require minimal maintenance. Follow these simple steps to keep them in good condition:
- Cleaning: Gently wipe the speaker grilles and surrounds with a soft, damp cloth to remove dust and dirt. Avoid using harsh chemicals or abrasive cleaners.
- Inspection: Periodically check the speaker cones and surrounds for any signs of damage or wear. Ensure all mounting screws remain tight.
- Environmental Factors: Protect speakers from extreme temperatures and direct moisture exposure, although they are designed for automotive environments.
Troubleshooting
If you experience issues with your KICKER KSC50 speakers, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound from speakers |
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| Distorted or unclear sound |
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| Intermittent sound |
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If the problem persists after attempting these solutions, contact KICKER customer support or a certified car audio technician.
Specifications
Detailed technical specifications for the KICKER 47KSC504 KSC50 5.25-inch Coaxial Speakers:
| Model Name | 47KSC504 |
| Speaker Type | Coaxial, 2-Way |
| Speaker Size | 5.25 Inches (Woofer Diameter) |
| Tweeter Diameter | 0.75 Inches (20mm) |
| Impedance | 4 Ohm |
| Speaker Maximum Output Power | 75 Watts |
| Frequency Response | 21 KHz (Upper limit, typical for tweeters) |
| Product Dimensions | 1.75"D x 4.41"W x 15.59"H (Note: These dimensions appear to be for the package, not individual speaker. Speaker mounting depth is typically around 1.75" for thin-mount designs.) |
| Item Weight | 3.75 Pounds (for the pair) |
| Included Components | 2 x Speaker |
| Mounting Type | Car Mount, Top Mount |
| Manufacturer | Kicker |
Warranty and Support
KICKER products are backed by a limited warranty. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official KICKER website. Keep your purchase receipt as proof of purchase for warranty claims.
For technical assistance, troubleshooting beyond this manual, or warranty service, please contact KICKER Customer Support:
- KICKER Official Website: www.kicker.com
- Refer to the website for contact information, FAQs, and additional support resources.





