The Pro Rider™ 18" Woofer provides the perfect balance of sensitivity, excursion, and power handling for many 2-way and 3-way applications. Efficient, high-impact bass in smaller vented enclosures.
 Features
 - Field-replaceable basket
 - Kevlar® reinforced cones for increased strength
 - Lower distortion due to greater damping of excess cone vibrations
 - Polyimide-impregnated fiberglass former for higher sensitivity and frequency
 - Die-cast aluminum frame
 - Higher power handling
 - 4" diameter edge-wound aluminum ribbon wire voice coil
 
Specifications
 - Power Handling (RMS): 1200 Watts
 - Power Handling (max): 2400 Watts
 - Impedance: 8 ohms
 - Frequency Response: 35 to 2,000 Hz
 - Sensitivity: 96.3 dB 1W/1m
 - Voice Coil Diameter: 4"
 
THIELE-SMALL PARAMETERS
 - Resonant Frequency (Fs): 36 Hz
 - DC Resistance (Re): 5.6 ohms
 - Voice Coil Inductance (Le): 0.41 mH
 - Mechanical Q (Qms): 11.14
 - Electromagnetic Q (Qes): 0.579
 - Total Q (Qts): 0.55
 - Compliance Equivalent Volume (Vas): 10.47 ft.³
 - Mechanical Compliance of Suspension (Cms): 0.09 mm/N
 - BL Product (BL): 17.90 Tm
 - Diaphragm Mass Inc. Airload (Mms): 142.60g
 - Maximum Linear Excursion (Xmax): 4.6 mm
 - Surface Area of Cone (Sd): 1260 cm²