Hifonics - Alpha 4" 2-Way Car Speakers with Woven Glass Fiber Composite Cones (Pair) - Blue/Black

150W RMS power; recommended amplifier power: 5 - 150W; two 5-1/4" carbon fiber/rohacell woofers; two 1" ceramic tweeters; 70Hz - 30kHz frequency response; 90dB sensitivity; 8 ohms nominal impedance; removable grille

Get brighter, more accurate audio with these Hifonics ALPHA 4-inch coaxial speakers. Butyl rubber surrounds extend durability and help enhance bass response, while the polypropylene cones improve midrange responses. These Hifonics ALPHA 4-inch coaxial speakers have pure copper voice coils and aluminum domes for clear, detailed sound across a frequency response range of 55Hz to 19kHz. Geek Squad® Installation Recommended Visit your local Best Buy store for more information.