Like its namesake these HIPPO Subwoofers are quite formidable in stature yet still nimble enough to deliver that low end punch great systems require. HIPPO series Subwoofers employ Dual 4 Ω, 2.5” high temperature, over-sized voice coils enabling a power handling capability of 500 Watts RMS / 1000 Watts Peak. HIPPO series Subwoofers have unusually deep Diamond polished Cast Aluminum baskets with double stacked Strontium Magnets. Front and center are Kevlar Fiber Reinforced Non-Pressed Paper Cones with an industrial machined stitched edge embedded into the cone’s Foam surround for added strength. Additionally, dual over-sized mirror image Poly / Nomex Spiders are utilized to insure linear alignment of the voice coils in the magnetic gap and maximum excursion under extreme conditions. FEATURES: Heavy Duty, Rugged Industrial Textured Cast Aluminum Basket High Energy Double Stack Strontium Magnet Structure Dual Impedance High Temp Anodized 2.5” Voice Coil Former with Kevlar Spunlace Kevlar Fiber Reinforced Non-Pressed Paper Cone with Industrial Textured Finish Stitched Edge to the Cone’s Edge for Added Strength Over Sized Mirror Image Dual Poly / Nomex Spiders Black Anodized One Piece Pole-Plate for Added Motor Force Heavy Duty Direct Input Wires Connection to Voice Coils Reinforced Fiberglass Woven Dust cap for High Power Applications Custom Tooled Rubber Gasket and Magnet Boot SPECIFICATIONS: Size 8" Peak Watts 1000 RMS Watts 500 Cone Kevlar Fiber Reinforced Non-Pressed Paper Voice Coil 2.5" Dual 4 Ohm Surround Tall and Narrow Foam Magnet 100oz Strontium Terminals Heavy Duty Direct Input Wires Connection Basket Cast Aluminum Tinsel Leads Heavy Duty Triple X-Max 11mm SPL 88dB 2.8V FS 53.86 Hz Qms 8.742 Liters Mounting Depth 5.16" Mounting Diameter 8.66" Ported Box 19.7"H x 9.6"D x 13.4"W (Round Port 4" x 12") Sealed Box 0.9 ft3