Kicker KSC40 4-Inch 2-way Coaxial Speakers w/.5-Inch tweeters, 4-Ohm

KickerSKU: 51KSC404



Smooth detail

Kicker designed their KS Series to be a substantial step up from run-of-the-mill factory speakers. The KSC40 4" speakers feature a polypropylene woofer that provides a satisfying, natural sound, paired with a 1/2" silk dome tweeter that prioritizes smoothness in your music's vocal and instrumental details. Install a pair and rediscover how your favorite songs were meant to be heard.

Kicker prioritizes fit

These low-profile speakers feature a reduced mounting depth and minimal tweeter protrusion, making them a match for almost any car. They also include 3-hole mounting brackets for some mounting versatility depending on your application.

Note: These speakers do not include grilles and are designed to fit behind factory grilles or panels.

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: 1.811"
  • impedance: 4 ohms
  • includes 3-hole mounting brackets for mounting versatility
  • grilles not included
  • MFR # 51KSC404

What's in the box:

  • 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)

Estimate shipping

Recommended Products

Verify fitment with your vehicle


(Change vehicle)