Kenwood KFC-1066S 4″ 2-Way Coaxial Car Speakers
4-inch coaxial speakers with a balanced dome tweeter, shallow fit and grilles included
$59.99
Overview
The Kenwood KFC-1066S is a pair of 4-inch 2-way coaxial car speakers. Each speaker combines a polypropylene woofer cone with a cloth surround and a 1-inch balanced dome tweeter with a neodymium magnet. They handle 21 watts RMS and 220 watts peak at 4 ohms, with 88 dB sensitivity and a 50 Hz to 22 kHz response. Mounting depth is only 1-11/16 inches, and grilles are included.
Product details
Sound Field Enhancer design
Kenwood builds the KFC-1066S with its Sound Field Enhancer to improve sound quality and an enlarged magnet circuit for clear sound. The 4-inch (100 mm) woofer uses a silver polypropylene cone with a cloth surround and a ferrite magnet, and a 1-inch (25 mm) silver balanced dome tweeter with a neodymium magnet handles the highs.

Power and response
Each speaker handles 21 watts RMS and 220 watts peak at 4 ohms. Sensitivity is 88 dB at 1 watt/1 meter, and frequency response runs from 50 Hz to 22 kHz.
Shallow fit
Kenwood lists only 5/16 inch (8 mm) of mounting height, measured as tweeter height, so the speakers fit a wider selection of cars. The cutout diameter is 3-5/8 inches (92.6 mm) and the mounting depth is 1-11/16 inches (43 mm). Each speaker measures 5-1/4 inches (134 mm) across with the grille and 4-1/8 inches (104 mm) without it, and weighs about 1.0 lb with the grille.
Included hardware
Kenwood includes two grilles, eight 4 x 25 mm tapping screws, eight speed nuts and two 0.3 m speaker cords. Before you install, check the mounting depth and the cutout size against the speaker location in your vehicle.

Key features
- 4-inch 2-way coaxial car speakers from Kenwood, sold as a pair
- Polypropylene woofer cone with a cloth surround and an enlarged magnet circuit
- 1-inch (25 mm) balanced dome tweeter with a neodymium magnet
- Sound Field Enhancer design that Kenwood uses to improve sound quality
- Handles 21 watts RMS and 220 watts peak at 4 ohms
- Sensitivity of 88 dB and frequency response from 50 Hz to 22 kHz
- Needs a 3-5/8-inch cutout and 1-11/16 inches of mounting depth
- Grilles, tapping screws, speed nuts and speaker cords are included
Specifications
| Weight | 1 lbs |
|---|---|
| Dimensions | 15.25 × 17 × 9.75 in |
| Size | 4 inch |
| Speaker Type | Coaxial |
| Brand | Kenwood |
| Model | KFC-1066S |
| Product type | 4" 2-way coaxial speakers (pair) |
| Woofer | 4 in (100 mm) PP cone, cloth surround |
| Tweeter | 1 in (25 mm) balanced dome, neodymium magnet |
| Woofer magnet | Ferrite, 160 g (5.6 oz) |
| RMS power | 21 W |
| Peak power | 220 W |
| Impedance | 4 ohms |
| Sensitivity | 88 dB (1 W/1 m) |
| Frequency response | 50 Hz – 22 kHz |
| Cutout diameter | 3-5/8 in (92.6 mm) |
| Mounting depth | 1-11/16 in (43 mm) |
| Tweeter height | 5/16 in (8 mm) |
| Diameter with grille | 5-1/4 in (134 mm) |
| Diameter without grille | 4-1/8 in (104 mm) |
| Weight | 1.0 lb (437 g) each with grille |
| Grilles | Included |
Important notes
- Mounting depth is 1-11/16 inches (43 mm). Check the space behind the mounting location before installing.
- Cutout diameter is 3-5/8 inches (92.6 mm). Confirm that the factory opening matches before installing.
What's in the box
- Kenwood KFC-1066S speakers (pair)
- Grilles (2)
- Tapping screws 4 x 25 mm (8)
- Speed nuts (8)
- Speaker cords 0.3 m (2)

