Size: 15" - Dual 4 OhmThe SDR-15 D4 15" dual 4 ohm subwoofer was engineered to dish out reliable, hard hitting, and low spectrum sound. Featuring a high flux ferrite motor, this woofer will provide extreme power handling for extended periods of time. The SDR series will quickly become a customer favorite, as it's perfect for people just entering the world of car audio all the way up to seasoned pros. The SDR-15 dual 4-ohm 15-inch car subwoofer features a 2.5 high temperature 4-layer high temperature copper voice coil that is attached to our signature red spider. The surround on the SDR series is a high roll foam surround which allows the woofer to produce riveting low end bass response. The SDR series has a max power rating of 1, 200 watts and a RMS power rating of 600 watts.
Sensitivity (Spl): 86.9 dB, Xmax: 13.5 mm one-way, Fs: 29 Hz,
Frequency Response: 20 Hz- 250 Hz,
Mounting Depth: 7.62".