The R152-S is a 5.25Ó 2-way component system rated at 40 watts RMS for a new generation of factory replacement speakers. Kit includes two woofers with grilles, two tweeters with integrated crossovers and mounting hardware. The PRIME series Component System kits are a new generation of factory replacement speaker delivering authentic Rockford Fosgate sound. The R152-S is a dedicated 2-way component system utilizing a Mica injected polypropylene cone for extended frequency response and accommodates direct OEM installation. The tweeter features a Mylar® balanced dome to reproduce crystal clear highs, an in-line crossover for simplifying installation, and accommodates flush, surface and angle mounting. FEATURES AT A GLANCE 1/2" (13mm) Mylar® balanced dome Foam surround Mica-injected polypropylene cone Stamped steel basket 1 Year Warranty Speaker Size 5 1/4 Design 2-way Tweeter Design Balanced Dome Impedance (Ohms) 4 Tweeter Composition Mylar Woofer Composition Mica-poly Woofer Surround Foam Parts Warranty 1 Year Labor Warranty 1 Year Sensitivity (1W at 1 meter) 85 Sensitivity at 2.83 volts N/A Frequency Response 58 - 20k Hz Minimum RMS Wattage --- Maximum RMS Wattage 40 Peak Power Handling (Watts) 80 Top-mount Depth (Inches) 1 7/8 Bottom-mount Depth (Inches) N/A Cutout Diameter or Length (inches) 4 3/4 Mounting Height (Inches) 0.205