JL AUDIO (C2-525CW) 5.25-INCH (130MM) COMPONENT WOOFER (EACH) FEATURES: 5.25-inch (130 mm) 2-Way Component Woofer (Single) The C2-525cw is a 5.25-inch (130 mm) component woofer with mineral-filled polypropylene cone, long excursion capabilities and stamped steel frame. The woofer design benefits from JL Audio's vast woofer design experience and advanced modeling systems. A woofer grille is included, consisting of a black grille tray with satin silver accents and a black steel mesh grille with an electroformed JL Audio logo. Sonic character: Clean and Dynamic Sold individually. GENERAL SPECIFICATIONS: Continuous Power Handling (RMS) : 60 W Recommended Amplifier Power (RMS) : 15 - 100 W / Ch. System Efficiency : 89 dB @ 1 W / 1 m System Nominal Impedance : 4 Ω System Frequency Response : 63 Hz - 22 KHz ± 3 dB WOOFER PHYSICAL SPECIFICATIONS: Frame Outer Diameter* (A) : 5.20 in / 132 mm Grille Tray Outer Diameter (B) : 6.01 in / 153 mm Motor Outer Diameter (C) : 2.76 in / 70 mm Frontal Coaxial Tweeter Protrusion (D) : N/A Frontal Grille Protrusion** (E) : 0.72 in / 18 mm Mounting Hole Diameter (F) : 4.56 in / 116 mm Mounting Depth (G) : 2.50 in / 64 mm *Does not take into account mounting tabs **Frontal grille protrusion measured from mounting surface In-Store Purchase only SKU # 99625