Rockford Fosgate P3D2-12 Punch P3 12" 2-Ohm DVC Subwoofer (P3D212) S2S40C The Class-BD technology produces bass

The Class-BD technology produces bass more efficiently over traditional amps

It’s a simple system to use — turn it up until the light shows red

variable-color display

Picture this: you’re out on your boat

the GM-DX971 features a variable Low-Pass Filter (LPF)

Rockford Fosgate P3D2-12 Punch P3 12" 2-Ohm DVC Subwoofer (P3D212) S2S40C The Class-BD technology produces bassRockford Fosgate P3D2 12 Punch P3 12" 2 Ohm DVC Subwoofer The Rockford Fosgate P3D2 12 is Rockford's best performing Punch series subwoofer for cars and trucks. The P3 12 inch subwoofers now feature anodized aluminum cones and dustcaps along with unique spider venting to keep the motor cooler than previous versions. These feature VAST technology to increase surface cone area up to 25% and a FlexFit basket for extreme car and truck installations. Best