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Rockford Fosgate P3SD4-8 Open Box Complete (Very Good, Used)

300W Max (150W RMS) 8" Punch Stage 3 Shallow Mount Dual 4-ohm Subwoofer

Rockford Fosgate
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• Item Condition: Open Box
• 300W Peak
• 150W RMS
• Dual 4-Ohm Voice Coil
• Anodized Aluminum Cone and Dustcap
• M-Roll Santoprene™ Surround

Learn more about the ls-p3sd48-obc6

We apologize

This item has been discontinued

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.

Open Box (Complete): Item was previously installed and used. Item is in good condition and has been tested to be fully functional. Nonessential accessories (screws) may have been replaced with generic parts.


 

Key Benefits

  • 8" Dual 4 ohm Shallow Mount Punch Stage 3 Subwoofer
  • Power Handling:
    • Peak: 300 watts
    • RMS: 150 watts
  • Recommended power range: 75 - 200 watts RMS
  • CEA-2031 Compliant
  • Klippel Verified
  • Flex-fit™ Mounting pattern
  • Proprietary spider venting/cooling technique
  • StampCast basket with integrated spider venting
  • Sturdy 16 gauge compound bend frame geometry
  • High modulus Kevlar™ re-inforced paper-pulp cone
  • Semi-flexible, PVC removable protective motor cover
  • Multi-point high-temp/high-strength neck joint bonding technique
  • Tall-profile VAST™ Santoprene™ surround for larger surface area
  • Dual tear & fatigue resistant poly-cotton spider with woven tinsel leads
  • Fatigue resistant and reduced strain "stitched on" flexible lead wire design
  • Proprietary all metal, radially oriented compression input terminal assembly
  • Optimized motor magnetics with extended pole and bumped vented backplate
  • High temp 2" voice coil w/ spun-laced Nomex™ insulating re-inforcement collar
  • Die-Cast aluminum soft-touch painted trim ring allows for optional integrated grill
  • Stamped Mesh Grille Insert Available: Rockford Fosgate P2P3G-8

  •  
  • Mounting Depth: 2.66"
  • Cutout Diameter: 7.13"
  • Magnet Weight: 37.5 oz
  • Frequency Response: 38 - 250 Hz
  • Xmax: 8.3mm
  • Sensitivity: 82 dB @ 1 watt / 1 meter
  • Recommended Ported Enclosure: 0.75ft³
  • Recommended Sealed Enclosure: 0.25ft³
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

  • Priced Individually

Check out the Rockford Fosgate P3 Series Owner's Manual

Tips for Installing the P3SD4-8 Subwoofer


Subwoofer Wiring Guide


Wiring Guide to Wire 1 Rockford Fosgate P3SD4-8 Open Box Complete (Very Good, Used) Subwoofer

Mono Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 2 Rockford Fosgate P3SD4-8 Open Box Complete (Very Good, Used) Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp - Bridged

Wiring Guide to Wire 3 Rockford Fosgate P3SD4-8 Open Box Complete (Very Good, Used) Subwoofers

Mono Amp

4 Channel Amp

Wiring Guide to Wire 4 Rockford Fosgate P3SD4-8 Open Box Complete (Very Good, Used) Subwoofers

Mono Amp

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

Specifications & Details


Subwoofer Specifications
Series
Punch P3 Shallow Mount Series
Subwoofer Size
8"
Peak Power Handling
300 watts
RMS Power Handling
150 watts
Voice Coil(s)
Dual
Impedance (Per Voice Coil)
4 ohm
Voice Coil Diameter
2"
Sensitivity
82 dB
Xmax (millimeters)
8.4 mm
Subwoofer Design
Round / Circle
Main Cone Color
Black
Woofer Composition
Anodized Aluminum
Woofer Surround
Santoprene Rubber
Subwoofer Grille
Optional (Accessory required and sold separately)
Re-Cone Kit Available
No
Recommended Enclosure Specifications
Recommended Enclosure Type
Ported / Vented
T/S Parameters (Electromechanical)
Equivalent Compliance (Vas)
15.8 liters
Total Speaker Q Value (Qts)
0.72
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

P3SD4-8 Open Box Complete-2

Weight:

10.00lbs

Internal SKU:

ls-p3sd48-obc6

Internal Product ID:

133397

Customer Ratings & Reviews


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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

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Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.