Audio Ace Jester 15" 3000W RMS Dual-4-Ohm Subwooofer With Dyeable Cone

Description Built with the goal of achieving a high level of SQ/SPL.The Jester is rated at 3,000 RMS. Designed with fairly lowFS and a strong motor structure allows the Jester to be versatileenough to sound great across a wide range of music. Whether youare looking to be one of the loudest vehicles in your town, orjust wanting to enjoy the bass in your daily driver at EXTREMEsound levels, the Jester is a great choice! Size 15 Inch RMS 3000w  Heavy Duty Aluminum Basket 4layer 10" Spider Coil Size 3 inch BACCAW 4layer 300oz Motor Impedance Dual 4 Ohm Re 3.52 Le 3.341 L2 8.625 R2 17.07 Cmes 681.46 Lces 32.71 Res 37.19 Fs 33.7 Mechanical Parameters (Using Laser) Mms 551.552 Mmd 527.404 Rms 21.762 Cms .040 Kms 24.75 Bl 28.449 Lambda .043 Loss Factors Qtp .488 Qms 5.368 Qes .508 Qts .464 Misc Parameters Vas 33.8589 n0 .245 Lm 86.10 Lnom 86.65 rmse Z 7.59 rmse Hx 5.04 Sd 769.45 Box Recommendation 3-4 cubic foot ported 14-16 square inches of port per cubic foot 28-36hz tuning Optim