8" CompC 4 Ohm DVC The dual-voice-coil CompC Subwoofers make wiring easy with a pair of spring-loaded terminals, for easy optimizing of a CX-Series Amplifier. Big power and big bass are easy to get. Features: Dual Four-Ohm Voice Coil and Reengineered for Increased Excursion and Deeper Bass Injection-Molded Polypropylene Cone Forced-Air Cooling™ for Outstanding Durability Ribbed Polyurethane Surround Signature Yellow Surround Stitching High-Strength Spiralead™ Tinsel Leads Stamped Steel Basket High Temp Voice Coil Spring-Loaded Speaker Terminals | Specification Details Brand KICKER Model CompC 8" Model Number 50CWCD84 Type 8" Subwoofer Voice Coil Dual Voice Coil (DVC) Impedance 4Ω DVC Peak Power 400W Recommended RMS Power 100–200W Frequency Response 30–500Hz Sensitivity 83.6dB Mounting Depth 4-3/16" (10.5cm) Mounting Diameter 6-15/16" (17.7cm) Sealed Enclosure 0.5–1.2 cu. ft. Vented Enclosure 0.66–1.2 cu. ft. Xmax 11.1mm