With over 40 years of experience . Alpine has the know-how to deliver the kind of hard-hitting bass you want. The R2-W12D4 12?? sub capitalizes on this knowledge with a new motor structure with double-stacked magnets for deeper bass and tighter sound. Its Kevlar-reinforced pulp cone features a durable HAMR Santoprene surround that allows for huge amounts of excursion . and an oversized poly ceramic dust cap supplies rigidity to keep the sound tight. It’s the perfect sub for bassheads that want the best of both worlds: accurate response and otherworldly thump.A versatile performerThe R2-W12D4 handles up to 700 watts RMS . so it’s ready for your high-powered amp. Its dual oversized 4-ohm voice coils offer wiring flexibility for multiple subwoofer setups. Since it works well in sealed or ported enclosures you’ll enjoy your music the way you like to hear it.Note: If you are wiring this DVC sub for lower impedance . make sure that your amp is compatible.Product highlights:12?? subwoofer with dual 4-ohm voice coilsKevlar reinforced pulp cone with HAMR Santoprene rubber surroundfrequency response: 24-200 Hzpower handling: 300-750 watts RMS (375 watts per coil)peak power: 2250 wattssensitivity: 85 dBtop-mount depth: 6.43??sealed box volume: 0.55-1.0 cu. ft.ported box volume: 1.0-1.5 cu. ft.grille not includedFrequency response: 24-200 HzPower handling: 300-750 watts RMS (375 watts per coil)Peak power: 2250 wattsSensitivity: 85 dB