KENWOOD KFC-1398RS 5-1/4" 2-Way Car Speakers

The KENWOOD KFC-1398RS is a pair of 5-1/4-inch, 2-way coaxial car speakers designed as a direct replacement option for many factory speaker locations. They provide an upgrade path for vehicles with worn, limited-range, or lower-output factory speakers. With a compact mounting profile and included installation hardware, they are suited to door, dash, or other locations that accept this speaker size.

These speakers are rated for 75 watts RMS power and 330 watts peak input power, with a 4-ohm impedance for use with compatible car audio systems. Their 85 dB sensitivity and 82 Hz to 21 kHz frequency response support clear midrange and high-frequency reproduction in a compact format. They can be connected to a compatible aftermarket or factory head unit, or paired with an external amplifier matched appropriately to their rating.

A 5-1/4-inch polypropylene woofer cone with KENWOOD's Diamond Array Pattern handles the low and midrange frequencies. The rubber surround supports cone movement, while the steel basket provides a stable mounting structure. This construction is intended to reduce distortion and provide a controlled sound response.

The integrated 1-inch balanced-dome tweeter covers the upper-frequency range without requiring separate tweeter mounting. KENWOOD's Acoustic Sound Harmonizer uses the tweeter-panel design to manage woofer sound waves for smoother response. The Sound Field Enhancer tweeter shape is designed to project high frequencies forward and widen the sound field at 5 kHz and above.

The KFC-1398RS is a practical choice for a small-speaker factory-location upgrade where depth is limited. Its 1-13/16-inch mounting depth and 1/4-inch tweeter height help it fit many recessed mounting locations. Verify the vehicle's opening, mounting depth, connector style, and factory mounting provisions before installation.

Key Features

• 5-1/4-Inch Two-Way Design: Combines a woofer and integrated tweeter in one coaxial speaker assembly.
• 75W RMS Power: Supports use with compatible head units or properly matched amplification.
• Diamond Array Woofer: Polypropylene cone pattern is designed to enhance sound and reduce distortion.
• Balanced-Dome Tweeter: The 1-inch tweeter handles upper frequencies with an integrated design.
• Acoustic Sound Harmonizer: Helps manage woofer sound waves for smoother, more natural response.
• Low-Profile Factory Fit: Shallow tweeter height and compact depth aid installation in many factory locations.

Design & Installation

The KFC-1398RS uses a black polypropylene woofer cone, rubber surround, steel basket, and steel top plate/yoke with a black finish. Its woofer uses a ferrite magnet, while the balanced-dome tweeter uses a neodymium magnet. The optimized woofer damper shape is designed with stress-leveling points to support durability and smoother sound response.

Confirm a 4-7/16-inch cutout diameter and at least 1-13/16 inches of mounting depth at the intended location before ordering. The package includes grilles, tapping screws, speed nuts, speaker cords, adhesive tape, and a warranty card; vehicle-specific brackets, adapters, and harnesses may still be needed. Use the supplied hardware where appropriate, observe speaker polarity, and match the speakers with a compatible 4-ohm audio source.