2) Brand New DS18 GEN-X124D 12 900 Watt 4-Ohm DVC Subwoofers COMES WITH YEAR WARRANTY Introducing the GEN-X subwoofers at 4 ohm configurations in 10, 12, and 15. With powers ranging from 400-500 watts RMS, these subwoofers will provide high-quality, provoking resonation for anyone seeking powerful bass. Model: GEN-X124D Type: Subwoofer Size: 12 RMS Power: 450W Each MAX Power: 900W Each Impedance: 4 + 4 Voice Coil Size: 2 Magnet: Ferrite Magnet Size: 66 oz Frequency Response: 44Hz - 4.8KHz Materials Frame: Steel Basket Cone: Paper with Glass Fiber Surround: Foam Edge Voice Coil Former Material: Black Aluminum Diameters Mounting Cut-Out: 10.9 (277mm) Mounting Depth: 5.75 (137mm) Overall Diameter: 12.44 (316mm) Net Weight: 6.3kg Specifications: Rms Power: 450 Watts Each Peak Power: 900 Watts Each Subwoofer Size: 12? Voice Coil: 2? Black Aluminum Impedance: Dual 4-ohm Frequency Response: 40Hz – 4.8KHz Sensitivity: 91dB Mounting Depth: 5.75? Sold as pair DBs Enclosure Recommendations: Sealed: 1.0 cuft.. Ported: 1.26 - 2.0 cuft. Tuned to 35Hz Authorized DS18 Dealer 2 Subwoofers Included Brand New open box 3 Year Warranty Comes with 3 year StereoNeeds warranty. For any warranty issues please contact us. Our company has been in the stereo business for over 20 years We have sold on EBAY since 2000, so please bid with confidence. We have a 99% positive feedback rating on EBAY! We have very prompt shipping. We will gladly answer any technical questions you have. If you have any questions, problems, warranty issues, or concerns please click the contact seller button.