Rockford Fosgate Punch P1S4-15

500W Max (250W RMS) 15" Punch P1 Series Single 4-Ohm Car Subwoofer

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• 500W Peak
• 250W RMS
• Kevlar Reinforced Paper Cone
• High Density NBR Half-Roll Surround
• 2" 4-Layer Voice Coil
• 10 AWG Nickel Plated Compression Input Push Terminals

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JL Audio XD200/2v2 with Rockford Fosgate P1S4-15

200W 2-Channel Class D Amplifier with 250W RMS 15" Single 4-Ohm Subwoofer



Current Promotions (2 offers)

Get a Free roll of Belva 16 Gauge Speaker Wire. Simply click the "Add Both to Cart" button and you will see your savings at checkout. This offer cannot be combined with any other coupons or offers.

Rockford Fosgate Punch P1S4-15

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Rockford Fosgate Punch P1S4-15

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Product Highlights

• 500W Peak
• 250W RMS
• Kevlar Reinforced Paper Cone
• High Density NBR Half-Roll Surround
• 2" 4-Layer Voice Coil
• 10 AWG Nickel Plated Compression Input Push Terminals


Rockford Fosgate brand icon

Authorized dealer

P1S4-15 Punch P1 Series Subwoofer

The P1 Series continues Rockford Fosgate's world famous line that is considered to be "The Woofer of Choice" for car audio systems. The P1S4-15 subwoofer has a peak power rating of 500 watts and an RMS rating of 250 watts. Just like all Rockford Fosgate products, this subwoofer is built with quality and durability. The P1S4-15 features a high modulus kevlar reinforced paper cone with a high density NBR half-roll surround. The 10 AWG nickel plated push terminals with keep a secure connection at all times while resisting corrosion. The Punch Series 15" woofer also comes equipped with 2" 4-layer high temp voice coil, poly cotton spider, extended pole piece, bumped backplate, and a proprietary spider venting/cooling technique that helps keep subwoofer operating at a safe temperature. Once again, Rockford has made a top notch product at an affordable price.

While built on a long standing history of performance, the punch series woofers can deliver not only the output to satisfy you when you want it loud but maintain a level of sound quality for when you really want to "listen" to your music. Taking many design cues from the Power Series, Rockford Fosgate engineers continue to improve the Punch Series year after year making it one of the most sought after woofer lines for music and bass enthusiasts alike. With features like Dual tear & fatigue resistant poly-cotton spider for high strength and anodized aluminum voice coil formers to handle heat buildup in the motor structure under full power situations, these drivers are designed to perform.

Anodized Aluminum Voice Coil Former

Anodized Aluminum Voice Coil Former

By using an anodized aluminum voice coil former on their subwoofers, Rockford Fosgate is able to dissipate heat from the voice coil more efficiently. A hot voice coil can melt the adhesive bonds, which will lead to eventual subwoofer failure. The aluminum voice coil former acts as a heat-sink to dissipate thermal build-up on the voice coil cool during high SPL conditions.

CEA-2031 Rockford Fosgate Subwoofers

Conforms to CEA-2031

Rockford Fosgate has built this subwoofer to conform to the CEA-2031 loudspeaker power handling industry standards. This means that you can trust the subwoofer to have the capacity to safely handle the continuous (RMS) power rating. Having a CEA-2031 power handling is important when matching a subwoofer to an amplifier because the power ratings are accurate.

Rockford Fosgate Stitched Tinsel Leads

Stitched Tinsel Leads

To improve the reliability and performance by reducing fatigue and possible shorting, Rockford Fosgate has stitched the tinsel leads to the spider. The multipoint periodic stitching lead wires reduce the mass of the tinsel leads to spread the stress over a greater area. This improves the reliability and performance of the subwoofer.



Key Benefits

  • 15" Single 4 ohm Punch Stage 1 Subwoofer
  • Power Handling:
    • Peak: 500 watts
    • RMS: 250 watts
  • Recommended power range: 125 - 300 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 P1G-15
  • Mounting Depth: 6.98"
  • Cutout Diameter: 13.85"
  • Magnet Weight: 60 oz
  • Frequency Response: 18 - 250 Hz
  • Xmax: 9mm
  • Sensitivity: 87 dB @ 1 watt / 1 meter
  • Recommended Ported Enclosure: 2.66ft³
  • Recommended Sealed Enclosure: 1.58ft³
  • Matching Amplifiers: (one subwoofer)
  • Matching Amplifier: (two subwoofers)
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

  • Priced Individually

Check out the Rockford Fosgate P1 Series Owner's Manual

Tips for Installing the P1S4-15 Subwoofer

Subwoofer Wiring Guide

Wiring Guide to Wire 1 Rockford Fosgate Punch P1S4-15 Subwoofer

Mono Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 2 Rockford Fosgate Punch P1S4-15 Subwoofers

Mono Amp

2 Channel Amp

4 Channel Amp - Bridged

Wiring Guide to Wire 3 Rockford Fosgate Punch P1S4-15 Subwoofers

4 Channel Amp

Wiring Guide to Wire 4 Rockford Fosgate Punch P1S4-15 Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

Specifications & Details

Subwoofer Specifications
Punch P1 Series
Subwoofer Size
Peak Power Handling
500 watts
RMS Power Handling
250 watts
Voice Coil(s)
Impedance (Per Voice Coil)
4 ohms
Voice Coil Diameter
Frequency Response
23 - 250 Hz
87.5 dB
Xmax (millimeters)
7.0 mm
Subwoofer Design
Round / Circle
Main Cone Color
Woofer Composition
Kevlar Reinforced Pulp Paper
Woofer Surround
NBR Half Roll
Magnet Type
Subwoofer Grille
Re-Cone Kit Available
Recommended Enclosure Specifications
Recommended Enclosure Type
Ported / Vented
Optimum Sealed Box Volume
1.58 cubic feet
Optimum Ported Box Volume
2.66 cubic feet
Top-Mount Depth (Mounting Depth)
Cutout Diameter
Shallow Mount Installation
Electromechanical Parameters
Free-Air Resonance (Fs)
23.00 Hz
Equivalent Compliance (Vas)
191.5 liters
Total Speaker Q Value (Qts)
Electrical Q Value (Qes)
Electrical Resistance of Voice Coil (Re)
3.60 ohms
Mechanical Q Value (Qms)
What is in the box?
User manual
WITB: Subwoofers
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

Item Details


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Product and How-to Videos

  • Car Subwoofer Size Buying Guide | What Size of Sub Should I Get?
  • How to Install a Car Subwoofer in a Box

Customer Ratings & Reviews

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Customer Reviews

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Great Product

These subs pound harder then any other sub I have owned. great product would buy two more if my car could fit them.

By phil on August 31, 2013


found this helpful.

Gotta love them 15s

This is my first purchase of the 2011 line of Punch subwoofers and I must say I like the design and look of these better than the previous line of which I have two 12", although those are wonderful subs as well. I don't really have room for a 15 in any of my vehicles but was missing that deep, "feel it not hear it" bass that only a 15 can provide so I got one of these to add to my garage stereo and I am very happy with this sub. I am pushing the P1S4-15 off of a Fosgate Power 500bd @ a 4 ohm load so the sub is getting at least 250 watts rms and it seems to be a perfect match. I doubt my neighbors are gonna like my new toy very much.

By Buddy Lee on December 29, 2012


found this helpful.

Nice 4 Da Price

Man! These subs really bang. They slam and can hang with the big boys. I put 2 of these on hifonics brx1000 @2ohms and they got down. I couldnt believe how loud and deep they were. Well worth it!

By Lo on July 14, 2013


found this helpful.

boom boom boom

Good subwoofers. No problems so far. They pound hard with the right wattage.

By Don on March 4, 2013


found this helpful.

Cant beat it for the money

I was skeptical that I would be satisfied with an entry level sub after being in the game as long as I have but I was wrong. I installed it in my wife's SUV on 250 watts in an Atrend sealed 2.0 ft sealed box. Sub moves lots of air and produces alot of deep bass you can feel. This is a good set up for someone just getting in the game or thats tight on cash for the sub and box shipped cant be beat.

By Earl on February 24, 2015


found this helpful.

fun fun

Great subs for price. Dont distort at all with my set up. Even ran them at 2 ohms and theyre holding up nicely. They be thumpin holmes

By Linda on February 24, 2013


found this helpful.

Great Sub For the Price

I have 2 of these on a prime 500-1 in a prefab ported box. They did a 142 on the meter. Great subs for the money and I highly recommend. Sonic has great service to I got these in 2 days with just standard shipping.

By Ron on March 23, 2013


found this helpful.

Rockford Fosgate Punch P1S4-15

Very pleased with these subs. Have 2 running off of a MRV-M500. 500 rms Alpine amplifier. Large sealed box. Subs never bottom out and are pretty tight for entry level subs. I was sceptical at first but I am very satisfied with this purchase.

By Anonymous on May 19, 2018


found this helpful.

Always Great Products!:) Fosgate thanks

I had a 12' ported box many years ago and this fosgate 15" with a 2 channel 1000 watt class ab amp and WOW this thing has some bass!!!
I have found its better to have more power than what the speakers need so that the speaker gets a clean undistorted signal with some MAJOR bass! For eighty-nine dollars on sale that's so Awesome, I bought a second one. I rated the 5 on durability, time will tell but so far Great, as with anything it can be treated right and last or recked in short order.
I used the sealed box and with the extra juice it still gives a clean hard hitting bass!:)

Thanks team fosgate, and sonic electrinix!


By John on March 23, 2018 Checkmark Icon Verified purchase


found this helpful.

Awesome sub

I have 2 of these on a prime 500.1 they can bang out a 143Db easy. Mine are in a 4cuft box @ 35hz

By Anonymous on August 12, 2018


found this helpful.


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