Kenwood KFC W12PS Manual

The Kenwood KFC W12PS is a 12-inch subwoofer designed for car audio systems, featuring a polypropylene cone, rubber surround, 4-ohm impedance, 350W maximum power handling, and frequency response optimized for deep bass reproduction. Below are key sections for specifications, installation, wiring, operation, and troubleshooting.

Features at a Glance

Key components: 12-inch polypropylene cone, rubber surround, dual voice coil, stamped steel basket, integrated terminals.

Installation

Unpack and inspect contents. Ensure proper enclosure and amplifier matching.

1. Select enclosure: Choose sealed or ported box per specifications.
2. Mount subwoofer: Secure with provided screws in cutout.
3. Connect wiring: Use appropriate gauge wire for power and signal.
4. Test system: Verify proper operation before final installation.

WARNING! Ensure proper polarity and secure mounting to prevent damage.

Wiring Configuration

Dual voice coil allows multiple wiring options for impedance matching.

1. Series wiring: Connect coils in series for 8-ohm load.
2. Parallel wiring: Connect coils in parallel for 2-ohm load.
3. Independent wiring: Wire each coil to separate amplifier channels.
4. Verify impedance: Use multimeter to check final load.

CAUTION! Ensure amplifier can handle final impedance load.

Specifications

• Size: 12 inches
• Impedance: 4-ohm dual voice coil
• Power Handling: 350W maximum
• Frequency Response: 20Hz - 1kHz
• Sensitivity: 90dB
• Mounting Depth: 5-1/4 inches
• Cutout Diameter: 11 inches
• Magnet Weight: 40 oz
• Enclosure Volume: 1.0 - 2.0 cu. ft. sealed, 1.5 - 2.5 cu. ft. ported

Controls and Settings

Amplifier settings crucial for optimal performance.

Amplifier Controls: Gain, Low-pass filter, Bass boost, Phase.

Gain: Set to match head unit output. Low-pass filter: 80Hz recommended. Bass boost: Use sparingly if needed. Phase: Adjust for proper alignment with other speakers. Crossover: Set appropriate frequency for subwoofer operation.

Enclosure Recommendations

Proper enclosure critical for performance and protection.

1. Sealed enclosure: 1.0 - 2.0 cubic feet for tight, accurate bass.
2. Ported enclosure: 1.5 - 2.5 cubic feet for increased output.
3. Construction: Use 3/4" MDF or similar material.
4. Bracing: Internal bracing recommended for larger enclosures.

Tip: Follow exact specifications for optimal performance.

Operation Guidelines

Proper operation ensures longevity and performance.

1. Break-in period: Play at moderate levels for first 10 hours.
2. Power handling: Do not exceed 350W maximum power.
3. Clipping: Avoid amplifier clipping to prevent damage.
4. Temperature: Allow proper ventilation during operation.
5. Volume: Gradual increase recommended for extended play.
6. Signal quality: Use clean audio signal for best performance.
7. Enclosure: Ensure proper sealing and construction.
8. Mounting: Verify secure installation before operation.

WARNING! Excessive power or clipping can damage voice coil.

Care & Maintenance

Regular maintenance ensures optimal performance and longevity.

Cleaning: Use soft cloth only; no liquids or chemicals. Inspection: Regular visual check for damage. Connections: Verify tight and corrosion-free. Enclosure: Check for air leaks and damage.

CAUTION! Do not use solvents or abrasive cleaners on cone or surround.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits. Copyright © 2025 Kenwood; trademarks of Kenwood Corporation. For support, visit www.kenwood.com or contact 1-800-536-9663.

Troubleshooting

Reset: Check amplifier settings and reset if necessary.

Service: 1-800-536-9663; www.kenwood.com