SBR-S83V - Alpine 8" Single Ported Enclosure Loaded with a Type-R Subwoofer
Alpine SBR-S83V 8" 1000 Watt Type-R Subwoofer With Tuned High-quality MDF Ported/Vented EnclosureFeatures:    Alpine Type-R SBR-S83V 8" Single Subwoofer In Enclosure    Peak Power Output: 1000 Watts    RMS Power Output: 300 Watts    Frequency Response: 28Hz - 400Hz    Material: 3/8" MDF (3/4" Front Baffle)    Carpeted With Brushed Aluminum Trim    Injection Molded Santoprene Rubber Surround (H.A.M.R)    Kevlar Reinforced Pulp Cone Woofer    2-Piece Structural Parabolic Diaphragm Design    Oversized 2-1/2" 2-Ohm Voice Coil    4-Layer Dual Voice Coil Design    Compact Shallow Design    Ported Enclosure    Frequency Tuning: 30Hz    Height: 19"    Width: 11-1/8"    Depth [Including Grill]: 135mm (5-5/16") [160mm (6-3/8")]