Kenwood KFC-ST01 13/16" Add-On Tweeters

The Kenwood KFC-ST01 is a compact add-on tweeter designed to extend a car audio system’s high-frequency reproduction. Its 13/16-inch PEI balanced-dome design is intended for installations where additional treble detail is needed beyond the capability or placement of existing speakers. With a 5 kHz to 25 kHz frequency-response range, it is suited to the upper-frequency portion of a properly configured speaker system.

This tweeter is a practical option for listeners upgrading factory audio or supplementing compatible aftermarket speakers. It uses a 4-ohm nominal impedance and is rated for 40 watts of input power, helping it align with many conventional car-audio speaker circuits. Its 90 dB sensitivity specification provides useful output efficiency for a compact tweeter.

The KFC-ST01 uses a PEI balanced-dome tweeter diaphragm. This driver format is engineered for high-frequency playback in a small physical package, allowing it to be positioned closer to the listening area when the installation permits. Its compact 47 x 47 mm face dimensions can support discreet placement in many custom or add-on locations.

Kenwood rates the KFC-ST01 at 160 watts peak power and 40 watts rated input power. The stated operating range begins at 5 kHz, so it is designed to complement speakers that handle the lower and midrange frequencies. System power, impedance, and high-frequency signal routing should be matched appropriately during installation.

For a focused system upgrade, the KFC-ST01 can be used where a small dedicated tweeter is preferred over replacing larger door or dash speakers. Kenwood lists a 2-meter cord and bracket among the supplied accessories, supporting an add-on mounting approach. It is a straightforward choice for vehicle owners building or refreshing a component-style high-frequency stage.

Key Features

• 13/16-Inch Tweeter: Compact size for dedicated high-frequency installation.
• PEI Balanced Dome: Designed for clear upper-frequency reproduction.
• 40W Rated Input: Supports appropriately matched car-audio power.
• 160W Peak Power: Handles short-duration musical peaks within specification.
• 4-Ohm Impedance: Matches common car-audio speaker circuit designs.
• 5 kHz–25 kHz Response: Covers the upper-frequency range for added detail.

Design & Installation

The KFC-ST01 centers on a 13/16-inch PEI balanced-dome tweeter driver in a compact 47 mm-wide, 47 mm-high housing. Its specified overall depth is 27.9 mm, and each tweeter has a listed mass of 0.064 kg. The small form factor is suited to installations that need a dedicated high-frequency driver without the footprint of a larger speaker.

Kenwood lists a 2-meter cord and mounting bracket as included accessories. Confirm available mounting clearance before installation, especially the 27.9 mm depth, and use a system configuration that directs suitable high-frequency content to the tweeter. Match the 4-ohm impedance and 40-watt rated input specification with compatible audio equipment and wiring practices.