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Kicker KS Series Pair of 4" Coaxial 4 Ohm 75 Watts Speakers 51KSC404

Save 36% Save 36%
Original price $124.99
Original price $124.99 - Original price $124.99
Original price $124.99
Current price $79.96
$79.96 - $79.96
Current price $79.96

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  • Concert-Like Volume - Enjoy concert-level volume with KICKER KS-Series 4" 2-Way Car Speakers.
  • Smooth Sound Quality - Internally dampened polypropylene cones and durable rubber surrounds ensure precise midrange and midbass, while silk-dome tweeters deliver natural, detailed highs.
  • Vehicle-Friendly Design - Less than 2-inch mounting depth and zero tweeter protrusion for a perfect fit in almost every vehicle.
  • Power Handling - Thrives on 15 to 75 watts of recommended power for optimal performance.
  • Durable Construction - Polypropylene woofer and tough rubber surrounds for long-lasting quality.

Kicker KS Series Pair of 4" Coaxial 4 Ohm 75 Watts Speakers 51KSC404

This Listing Includes:

  • (2) 4" Coaxial 4 Ohm Speakers

  • (2) Speaker Mounting Adapters

Immerse yourself in superior audio with the KICKER KS-Series 4-Inch 2-Way Car Speakers. Engineered for concert-like volume, these speakers feature internally dampened polypropylene cones and durable rubber surrounds, delivering precise midrange and midbass. The high-quality silk-dome tweeters add natural and detailed highs to your listening experience. With a slim design featuring less than a 2-inch mounting depth and no tweeter protrusion, the KSC40 seamlessly fits behind factory grilles in almost any vehicle. Thriving on 15 to 75 watts of recommended power, these speakers ensure a powerful and clear sound upgrade.


  • 2-Way Speaker Design

  • Thin-Mount Design

  • Tweeter Magnet Material: Neodymium

  • Tweeter Dome Material: Silk

  • Woofer Cone Material: Polypropylene

  • Woofer Surround Material: Rubber

  • High Power Handling

Technical Specifications:

  • Woofer Size: 4 inches

  • Tweeter Size: 0.5 inch

  • Rated Impedance: 4 Ohms

  • Recommended Amplifier Power: 15-75 Watts RMS

  • Sensitivity: 88 dB

  • Frequency Response: 60Hz - 20kHz


  • Mounting Hole Diameter: 3.68 inches

  • Top Mount Depth: 1.81 inches

  • Bottom Mount Depth: 2.06 inches

Payment Information


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All orders over $500 will require a signature for delivery.

All pre-selected shipping rates and methods are for customers with a
valid residential or commercial address within the Contiguous 48 United
States (PO Boxes address may require additional charges).

P.O. Boxes, APO/FPO addresses, Alaska, Hawaii, Puerto Rico, Guam,
U.S. Virgin Islands, Northern Mariana Islands, American Samoa, Canada,
and other countries may require additional shipping fees. Please contact
a member of our team for detailed shipping charges.

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payment please confirm your address has been verified with PayPal. Once
payment is made shipping address can not be changed/altered. Payments
made using an unverified PayPal address will be refunded and order will
be canceled.

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has been made. Please confirm your shipping address is up-to-date and

Typical handling time for orders is 1-business day. We do our best
to ship every package with-in 1 business day of receiving a cleared
payment. In some circumstances additional time may be need, in which
case we will contact buyer.

Shipped orders that are returned by the shipping company due to an
insufficient address or an undeliverable address will be refunded less a
20% restocking fee.

If package is refused or marked undeliverable and returned
back to us by the carrier, you will need to pay the shipping cost in
full to have the package sent back to you or we can refund the money
minus the cost of shipping


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please do the following within 36 hours of expected, stated delivery:


Verify the shipping address on the order is the address where you are looking for the package

Look for a notice of attempted delivery

Look around the delivery location for the package, or see if a neighbor has accepted the delivery

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If you think that your package has been stolen, we will require a police report since this is now theft.
Once we have a police report on file for the stolen package, we will reship your order.

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