
This feature list is for reference only, please contact us to verify features and functionality. Some features in videos on the Internet may not be available on all models, please contact us for the TECHNICAL SPECIFICATIONS for a complete list of features by model. * DISCLAIMER: Design, features and specifications subject to change without notice. Recommended Vented Box: 0.71 cubic foot (gross volume), 7†x 0.75†vent area, 15.5†vent length.Recommended Sealed Box: 0.30 cubic foot (gross volume).Design: Reinforced Layer Spider Integration.Design: 8AWG Push Terminals with VC Configuration Jumpers.Configuration: Double-Stacked Strontium Ferrite Magnets.Perimeter Venting with Airflow Management System.Pole Geometry: Airflow Optimized Dual Flare Pole Vent.High-Excursion Underhung Voice Coil Configuration.Material: 5-Layer DVC Winding on AL Former.Design: Progressive with Reinforced Layer Tinsel Leads.Design: High Amplitude Multi-Roll (HAMR Surround).Speaker Rating: Max RMS Power Capacity: 300W RMS. Design: Reinforced Parabolic Cone Structure with PP/Mica/Talc Dust Cap ALPINE S-W8D4 8' 900 Watt Car Audio Subwoofer DVC Dual 4-Ohm Sub.

Strontium Ferrite double stacked magnets.8" Dual Voice Coil High-Performance Subwoofer
