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  5. 8" Car Subwoofers Closeout
  6. Rockford Fosgate P28S4-OB

See all parts that fit your 1982 C3500 Pickup

Rockford Fosgate Punch P28S4 Open Box

Single 4 ohms 8" Stage 2 Subwoofer

Rockford Fosgate
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8" Punch Stage 2 Single 4 ohm Subwoofer • 200W RMS • 400W Peak • aluminum voice coil former • large roll surround • stamped CRS basket • linear spider • double stacked magnet motor assembly • sensitivity: 84dB

Learn more about the LS-p28s4-OB

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Product Highlights

8" Punch Stage 2 Single 4 ohm Subwoofer • 200W RMS • 400W Peak • aluminum voice coil former • large roll surround • stamped CRS basket • linear spider • double stacked magnet motor assembly • sensitivity: 84dB

Description

Rockford Fosgate brand icon

Authorized dealer

Item Condition - Open Box, Great:

This product works like new, is well-cared-for and in great condition. May show limited signs of wear or use and may be missing non-essential parts, accessories or original packaging.

  • 8" Punch Stage 2 Single 4 ohm Subwoofer
  • Anodized aluminum voice coil former
  • High excursion large roll surround
  • Linear spider
  • Precision stamped CRS basket w/ removable motor cover
  • Parabolic triangular cone geometry support system
  • Massive double stacked magnet motor assembly
  • Removable and reversible screw concealing ring
  • Power Handling:
    • 200 watts RMS
    • 400 watts Peak
  • Sensitivity: 84 dB
  • Mounting Depth: 4.0625"
  • Motor Size: 30 oz. double stacked
  • NO WARRANTY OR RETURNS, ALL SALES ARE FINAL

Subwoofer Wiring Guide

Wiring Guide to Wire 1 Rockford Fosgate Punch P28S4 Open Box Subwoofer

Mono Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 2 Rockford Fosgate Punch P28S4 Open Box Subwoofers

Mono Amp

2 Channel Amp

4 Channel Amp - Bridged

Wiring Guide to Wire 3 Rockford Fosgate Punch P28S4 Open Box Subwoofers

4 Channel Amp

Wiring Guide to Wire 4 Rockford Fosgate Punch P28S4 Open Box Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

Specifications & Details

Subwoofer Specifications
Subwoofer Size
8"
Peak Power Handling
400 watts
RMS Power Handling
200 watts
Voice Coil(s)
Single
Impedance (Per Voice Coil)
4 ohm
Frequency Response
40 - 250 Hz
Sensitivity
84 dB
Woofer Surround
Foam
Recommended Enclosure Specifications
Minimum Sealed Box Volume
0.15 cubic feet
Maximum Sealed Box Volume
0.35 cubic feet
Minimum Ported Box Volume
0.5 cubic feet
Maximum Ported Box Volume
0.75 cubic feet
Top-Mount Depth (Mounting Depth)
4.0625"
Cutout Diameter
7"

Item Details

Manufacturer:

Rockford Fosgate

Model Number:

P28S4-OB

Weight:

9.00lbs

Internal SKU:

LS-p28s4-OB

Internal Product ID:

14332

Product and How-to Videos

  • 3Sixty3 Aftermarket Setup Wizard Tutorial
  • Car Subwoofer Size Buying Guide | What Size of Sub Should I Get?

Customer Ratings & Reviews

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