About the Kicker 47KSC404

Smooth detail
Smooth detail
Kicker designed their KS Series to be a substantial step up from your factory speakers. The KSC404 4" speakers feature a polypropylene woofer that provides a satisfying, natural sound. And the 1/2" silk dome tweeter prioritizes smoothness in your music's vocal and instrumental details. Kick out your stale, old sound and rediscover how your favourite songs were meant to be heard.
Use factory or aftermarket power
Not planning on swapping out your factory radio or adding an amp? No problem. With the KS Series, Kicker created a highly sensitive design that conjures hefty volume even from low-powered factory radios.
Kicker prioritizes fit
These low-profile speakers feature a reduced mounting depth and minimal tweeter protrusion, making them a match for almost any car.
Product highlights:
- 2-way car speakers (pair)
- 4" polypropylene woofer cone with rubber surround
- 1/2" silk dome tweeter
- handles up to 75 watts RMS (150 watts peak power)
- frequency range: 60-20,000 Hz
- sensitivity: 88 dB
- top-mount depth: 1-13/16"
- impedance: 4 ohms
- grilles not included
- warranty: 2 years
- MFR # 47KSC404
What's in the box:
Kicker 47KSC404 owner's manual
- Two 2-way speakers
- 2 Adapter brackets
- Two 11" Lengths of speaker wire (tinned wire on one end and female quick slides on the other)
- 4 Red plastic wire caps
- Eight 1-1/8" Screws
- Quick-Start guide (English/ Spanish/ German/ French)
Reviews (99)
Customer reviews for Kicker 47KSC404
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Average review:
4.5 out of 5 starsCustomer photos
This review was collected as part of a promotion
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More details on the Kicker 47KSC404

Features & specs
General | ||
---|---|---|
Speaker Size | 4 | |
Design | 2-way | |
Tweeter Design | 1/2" Balanced Dome | |
Impedance (Ohms) | 4 | |
Tweeter Composition | Silk | |
Woofer Composition | Polypropylene | |
Woofer Surround | Rubber | |
Parts Warranty | 2 Years | |
Labor Warranty | 2 Years | |
Specifications | ||
Sensitivity (1W at 1 meter) | 88 | |
Sensitivity at 2.83 volts | N/A | |
Frequency Response | 60 - 20k Hz | |
Minimum RMS Wattage | 15 | |
Maximum RMS Wattage | 75 | |
Peak Power Handling (Watts) | 150 | |
Top-mount Depth (Inches) | 1 13/16 | |
Bottom-mount Depth (Inches) | 2 1/16 | |
Cutout Diameter or Length (inches) | 3 3/4 | |
Mounting Height (Inches) | 0.27 |
Product Research
Features
4/2 Hole Compatibility: Most 4" factory speakers use four mounting screws, however, in some vehicles, only two are used. The KSC40's mounting tabs can be removed, allowing installation in 4-hole or 2-hole applications. Care should be taken handling the speaker after any tabs are removed because the broken edges may be sharp. Please enter your vehicle information to confirm fit.
The Kicker 47KSC404 replaces these items

Kicker 44KSC404
- 4" polypropylene woofer cone with rubber surround
- 1/2" silk dome tweeter
- handles up to 75 watts RMS (150 watts peak power)
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Customer Q&A
6 questions already asked
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I purchased these to upgrade the rear rollbar pod speakers in my 2021 Bronco, and they sound fantastic compared to the factory speakers! Installation was super easy as well - it maybe took 15 minutes per pod.
Dan from Riverton, UT