P3SD4-8

The Rockford Fosgate P3SD4-8 is a high-performance shallow-mount 8-inch subwoofer engineered to deliver deep, punchy bass in vehicles where mounting depth is limited. Part of Rockford Fosgate’s Punch P3S lineup, the P3SD4-8 combines advanced materials, a compact low-profile frame, and aggressive bass performance for trucks, under-seat installs, motorcycles, SUVs, and custom stealth audio builds.

Built with an anodized aluminum cone and dustcap, Rockford’s VAST surround technology, and a durable StampCast basket, the P3SD4-8 is designed to maintain rigidity under high power while maximizing cone area and cooling efficiency. The dual 4-ohm voice coil configuration provides flexible wiring options for a variety of amplifier setups.

Features

• Punch P3S Series shallow-mount subwoofer
• 8” low-profile subwoofer design
• Dual 4-ohm voice coils
• Anodized aluminum cone & dustcap
• VAST™ Santoprene surround technology
• StampCast basket construction
• High-temperature aluminum voice coil former
• Spider venting cooling system
• Compact mounting depth for tight installs
• High-excursion shallow woofer design
• Optimized for sealed or ported enclosures

Specifications

• Subwoofer Size:
  • 8”
• Voice Coil Configuration:
  • Dual 4-Ohm
• RMS Power Handling:
  • 150 Watts RMS
• Peak Power Handling:
  • 300 Watts Peak
• Frequency Response:
  • 38Hz – 250Hz
• Sensitivity:
  • 82 dB
• Mounting Depth:
  • 2.66”
• Cutout Diameter:
  • 7.13”
• Recommended Sealed Box:
  • 0.20 – 0.70 ft³
• Recommended Ported Box:
  • 0.75 ft³

Technologies

• VAST™ Surround
  • Increases effective cone area for deeper bass and greater output.
• Anodized Aluminum Cone
  • Lightweight and rigid for improved bass accuracy and durability.
• StampCast Basket
  • Reduces flex and distortion while improving cooling.
• Shallow-Mount Design
  • Perfect for under-seat and tight-space installations.

Included In The Box

• P3SD4-8 subwoofer
• Installation hardware
• User documentation