Rockford Fosgate T1D415 15” Subwoofer - DVC (dual 4-Ohm), 1000W Rms, 2000W Peak. Used but in great working condition T1D415 Power 15 T1 4-Ohm DVC Subwoofer. Innovative technologies allow the T1D415 subwoofer to perform like a larger woofer over the previous model. The T1 15” features dual 4-Ohm voice coils, 1,000 Watts RMS power handling, and includes a grille with integral trim ring. The Power Series T1D415 Dual 4-Ohm subwoofer builds on innovative new Rockford Fosgate technologies. These bad boys have patented VAST technology that increases surface cone area up to 25%. The new FlexFit basket not only looks the part but it provides extreme flexibility for extreme installations. Clean, high tech and ready to set off car alarms, the T1D415 is here!