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Rockford Fosgate Punch P18S4

8" Punch Stage 1 Single 4 ohms Subwoofer

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The product on this page is discontinued.
  • 8" Punch Stage 1 Single 4 ohms 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
  • Removable and reversible screw concealing ring
  • Spider support ring
  • Power Handling:
    • 150 watts RMS
    • 300 watts Peak
  • Sensitivity: 83 dB
  • Frequency Response: 40 Hz - 0.25 kHz
  • Mounting Depth: 4.125"
  • Motor Size: 26 oz. single stacked
  • 1-year SonicElectronix.com warranty
Product History:
Rockford Fosgate Punch P1S48 (09P1S48) thumbnail
(newest, current model)
Rockford Fosgate Punch P18S4 thumbnail
(previous model, replaced by Rockford Fosgate Punch P1S48 (09P1S48))
Subwoofer Specifications
Subwoofer Size8"
Peak Power Handling300 watts
RMS Power Handling150 watts
Voice Coil(s)Single
Impedance (Per Voice Coil)4 ohms
Frequency Response40 - 250 Hz
Sensitivity83 dB
Xmax (millimeters)N/A
Subwoofer DesignN/A
Main Cone ColorN/A
Woofer CompositionPolypropylene
Woofer SurroundFoam
Subwoofer GrilleN/A
Re-Cone Kit AvailableN/A
Recommended Enclosure Specifications
Recommended Enclosure TypeN/A
Minimum Sealed Box Volume0.25 cubic feet
Maximum Sealed Box Volume0.25 cubic feet
Minimum Ported Box Volume0.65 cubic feet
Maximum Ported Box Volume0.65 cubic feet
Top-Mount Depth4.125"
Cutout Diameter7"
Shallow Mount InstallationN/A
Warranty and Return Policy
Return Policy Standard Return Policy
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Speaker Wire
Choose from our recommended speaker wire to hook up your amplifier to your new subwoofer. The higher quality of speaker wire that it used for this connection, the better your subwoofer will sound.
 ProductPriceAdd?
15 ft. of 12 AWG StreetWires Speaker Wire15 ft. of 12 AWG StreetWires Speaker Wire
This SuperCable from StreetWires is a noise free link between your amplifier and your subwoofer.		$19.99
20 ft. of 12 AWG Kicker Speaker Wire20 ft. of 12 AWG Kicker Speaker Wire
Kicker uses twisted pair technology and hyper-flex cable to provide you with the cleanest sound and a simple installation.		$24.49
Sound Dampening Material
Get the most sound out of your new subwoofer with some high quality sound dampening material. It will keep the road noise out and the music inside the car.
 ProductPriceAdd?
Dynamat Rubber RollerDynamat Rubber Roller
Install your Dynamat with ease! This heavy duty rubber roller is designed specifically to install your Dynamat!		$18.99
Dynamat Xtreme Trunk KitDynamat Xtreme Trunk Kit
Get better sounding bass from your new subwoofer with enough Dynamat Extreme for your entire trunk.		$94.99
Enclosure Accessories
These accessories are designed to help you build the custom enclosure that you have always wanted, or add to the box that you already bought. Either way, these products can assist you in achieving better sound, better looks, and more bass!
 ProductPriceAdd?
20 oz. Bag of Poly-Fil20 oz. Bag of Poly-Fil
Polyester fiber fiberfill adds better bass to your system.		$5.99
16 oz. Can of Adhesive Spray16 oz. Can of Adhesive Spray
Spray adhesive used for adhering carpet to subwoofer boxes without bubbles.		$5.99
Spring Post Terminal CupSpring Post Terminal Cup
Makes adding a spring post terminal to an enclosure simple! Banana clip ready!		$2.99
Binding Post Terminal CupBinding Post Terminal Cup
Use this to easily install a binding post terminal to your subwoofer enclosure.		$2.99
Banana Clip TerminalsBanana Clip Terminals
These high grade banana clips allow you to plug into your banana clip ready terminal for a secure connection.		$4.99
System Optimization and Tuning
Use these items to assist in testing and tuning your new car audio system to perfection!
 ProductPriceAdd?
AutoSound 2000 CD-101AutoSound 2000 CD-101
Low frequency test CD		$12.99
AutoSound 2000 CD-102AutoSound 2000 CD-102
High frequency test CD specifically designed for the set-up and evaluation of sound system imaging and placement.		$12.99
AutoSound 2000 CD-103AutoSound 2000 CD-103
Audiophile reference series test disc for evaluation of all audio components.		$12.99

For more information on wiring subwoofers, visit our Subwoofer Wiring Guide: Subwoofer Wiring Guide

Product Summary

Manufacturer: Rockford Fosgate
Model number: P18S4
Weight: 8.00 lbs
Internal SKU: p18s4
Internal product ID: 7656

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Customer Testimonial

WOW! I didn't know shipping could go that fast! I ordered my items Monday morning at 10am, picked the free ground shipping and pretty much 24 hours later my order was on my door step. I always get fast processing with Sonic Electronix. Thanks for the low prices and speedy service.

- Hoffrey from Sacramento, CA

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