Kicker KS Series 51KSC6904 6x9" Coaxial Speakers, 150W RMS, 4Ω, Pair

Kicker 51KSC6904 is a 9" speaker set designed for upgraded audio output in compatible vehicle or marine audio systems.

Key Performance Features

• 9" speaker design for replacement or upgrade applications
• 150 W RMS power handling when properly powered
• 4 Ω nominal impedance for system matching
• Designed for clean midrange and high-frequency output in daily-use audio systems

System Architecture

• Type: Coaxial speaker system
• Application: Car audio speaker upgrade
• Nominal Impedance: 4 Ω

Power Handling / Output

• Continuous Power Handling (RMS): 150 W
• Peak Power Handling: 300 W

Driver / Construction

• Polypropylene woofer construction for durable midbass output
• Silk-dome tweeter design for smooth high-frequency response
• Durable surround material for daily-use speaker performance
• Grilles included for installation flexibility

Installation Use Cases

• Factory speaker replacement where the listed size and depth are compatible
• Aftermarket speaker upgrades using appropriate amplifier or head-unit power
• Daily-driver audio systems focused on cleaner output and improved clarity

Technical Specifications

• Brand: Kicker
• Series: KS Series
• Model: 51KSC6904
• Product Type: Coaxial Speakers
• Size: 9"
• Impedance: 4 Ω
• Power Handling (RMS): 150 W
• Frequency Response: Not provided

Identifiers & Packaging

• MPN: 51KSC6904
• UPC: 713034045304
• Sold As: Pair
• Included Components: Speakers, grilles where included, mounting hardware, and documentation

Why Buy From MCOR Automotive

• Authorized retailer for the brands we sell
• Specialists in car audio, marine audio, and vehicle-specific integration
• Expert support for product selection, amplifier matching, and clean system setup