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Rockford Fosgate Punch P1S48 (09P1S48)

8" Single 4 ohm Punch Stage 1 Subwoofer

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Rockford Fosgate Punch P1S48 (09P1S48)

8" Single 4 ohm Punch Stage 1 Subwoofer

$54.99

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NVX 25 ft. of True Spec 12 Gauge Speaker Wire

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20 Square Feet of Sound Dampening Material

NVX Sound dampening is thicker than competitors, eliminates rattles and gives you bigger bass!

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Universal rubber roller to make it easy to install sound dampening.

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  • 8" Single 4 ohm Punch Stage 1 Subwoofer
  • Power Handling:
    • Peak: 300 watts
    • RMS: 150 watts
  • Impedance: Single 4 ohm
  • Thermoformed polypropylene cone
  • Parabolic injection molded ABS/Acrylic dustcap
  • Custom 10-AWG nickel plated push terminals
  • High density poly-foam surround allows for 20% greater linear excursion than standard surrounds
  • High-temp 1.5" voice coil with spun-laced Nomex® reinforcement collar
  • Linear spider with embedded 16 AWG tinsel leads handle tons of power
  • Protective PVC textured magnet cover
  • Reversible ABS trim ring
  • Cosmetic motor cover can be removed for additional mounting clearance
  • Frequency Response: 40-250 Hz
  • Sensitivity: 84 dB
  • 1-year SonicElectronix.com warranty

Product History:

Rockford Fosgate P1S48 thumbnail
(newest, current model)
Rockford Fosgate P18S4 thumbnail
(previous model, replaced by Rockford Fosgate Punch P1S48 (09P1S48))

Subwoofer Specifications

Subwoofer Series
Each subwoofer manufactured is part of a series. This is the name of the subwoofer's series.
Subwoofer Size
Refers to the diameter of the subwoofer, measured in inches.
8"
Peak Power Handling
Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.
300 watts
RMS Power Handling
The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
150 watts
Voice Coil(s)
Dual voice coil subs have more wiring flexibility than single voice coils subs; however, single voice coil subwoofers provide easier hookup options for wiring multiple subwoofers in parallel or series. You may also run a dual voice coil (DVC) sub in parallel, series, or combination. A quad voice coil has four voice coils and is equal to two dual voice coil subwoofers as far as wiring goes.
Single
Impedance (Per Voice Coil)
The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.
4 ohms
Voice Coil Diameter
Diameter of voice coil, usually measured in inches.
Frequency Response
The range of frequencies the speaker will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
40 - 250 Hz
Sensitivity
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
 
Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
84 dB
Xmax (millimeters)
Typically measured in millimeters, the Xmax value is the measure of a speaker cone's maximum excursion in one direction while maintaining a linear behavior.
7 mm
Subwoofer Design
This is the design of the subwoofer or the opening of the subwoofer enclosure. Each design has it's own benefits, whether it is a square, circle, or oval.

Round/Circle: This is the typical and common subwoofer design. They have a round cone and are a circle in design.

Square: These woofers are able to achieve a greater cone area in a smaller space. Because of the greater surface area, some square subwoofers will be louder than a round subwoofer of the same size.

Round / Circle
Main Cone Color
This is the color of the speaker's or subwoofer's cone.
Silver
Woofer Composition
Lightweight woofer cone materials are essential for efficient operation. Poly cones produce exceptional sound and are sturdy against various changes in temperature. Paper cones are very efficient, and when treated for moisture resistance, will perform at a high level. Poly refers to polypropylene, which is thermoplastic or fibers that are polymers of propylene. IMPP refers to injection molded polypropylene, a commonly used process and material in speakers.
Thermoformed Polypropylene
Woofer Surround
A speakers surround is part of the suspension system. The surround protects the cone and prevents it from being displaced as it flexes out from the basket. It is usually made of a durable material like treated foam or rubber in order to withstand the strenuous job of producing bass frequencies.
Poly-Foam
Magnet Structure
Defines the overall structure of the subwoofers magnet.
Subwoofer Grille
Most subwoofers are able to accommodate a universal grille; however, some subs include a grille and others have a specific, optional grille available for purchase separately. If "yes", then the subwoofer includes a grille. If "optional (sold separately)" the matching grille will need to be purchased in addition to the sub.
Optional (Accessory required and sold separately)
Re-Cone Kit Available
Some higher end subwoofers have replaceable cone assemblies. In case of a blown woofer, a recone kit allows for a simple replacement, as opposed to purchasing an entire new subwoofer.
No

Recommended Enclosure Specifications

Recommended Enclosure Type
This is the recommended type of enclosure that the subwoofer should be installed into. Some subwoofers are specially designed for particular enclosures.

Sealed: These enclosures completely enclose the air inside the box. These boxes produce a tight bass.

Ported/Vented: These enclosures have a slot of air to escape from the box. The result is a sound that has more "boom".

Bandpass: These are a combination of both sealed and ported enclosures. They can be very efficient, but require tuning for the best response.

Ported / Vented
Sealed
Optimum Sealed Box Volume
This value indicates the ideal sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
Optimum Ported Box Volume
This value indicates the ideal ported box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
Top-Mount Depth
The depth when installed on top of the mounting surface. Measured from the bottom of the speaker's magnet to the bottom of the mounting holes on the rim of the speaker.
4-1/8"
Cutout Diameter
The actual diameter of the hole you will need to cut out if you are creating a new mounting location for this speaker, or if you are mounting a subwoofer in a box.
7-1/8"
Shallow Mount Installation
This means that the subwoofer/speaker is designed to be installed in areas that do not have a lot of space. Shallow mount subwoofers are typically found under a seat or behind the seat in some trucks.

Shallow mount speakers will typically have a mounting depth of 2" or less, while shallow mount subwoofers will typically have a mounting depth of 3" or less.

No

Electromechanical Parameters

Free-Air Resonance (Fs)
The free-air resonance frequency of the subwoofer, measured in Hz. At this frequency the weight of the moving parts is perfectly balanced with the subwoofers suspension system.
Equivalent Compliance (Vas)
This is the amount of air that has the same stiffness as the subwoofers suspension. The greater the rating, the lower the stiffness and larger recommended enclosure. It is measured in Liters.
Total Speaker Q Value (Qts)
This is the subwoofers relative damping (Q) at the resonance frequency (Fs), including all dimensionless losses. Essentially, a high Qts value (closer to 1.0) means the subwoofer is great for sealed enclosures and a low Qts value (closer to 0) means the woofer is great in vented enclosures. A Qts of around 0.45 means the woofer will work decently in either enclosure type.
Electrical Q Value (Qes)
The subwoofers relative damping (Q) at the resonance frequency (Fs), including electrical losses. Also called the mechanical damping of the subwoofer. The unitless measurement usually varies from 0.5 – 10.
Electrical Resistance of Voice Coil (Re)
Amount of DC resistance of the subwoofer when measured with an ohm meter. Typically, this will read less than the impedance rating of the subwoofer.
Mechanical Q Value (Qms)
This is the subwoofers relative damping (Q) at the resonance frequency (Fs), including mechanical losses. Also called the mechanical damping of the subwoofer. This unitless measurement usually varies from 0.5 – 10.
Efficiency Bandwidth Product (EBP)
This number represents the trade off between having an efficient woofer and one with a wide bandwidth. To calculate this number, take the Fs and divide it by the Qes. If the number is below 50, the woofer is designed for a sealed enclosure only. If it's between 50-100 it can be used in either. Lastly, if it's greater than 100 it's designed for vented enclosures.

Specials with this Item

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Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Sonic Electronix

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
73%
4 Star
18%
3 Star
0%
2 Star
9%
1 Star
0%

Average Attribution Rating

Durability
4.5
Value
4.8
Features
4.4
Design
4.7
Usability
4.8
Taylor

San Antonio, TX

Overall
Durability
Value
Features
Design
Usability
This sub ROCKS

October 3, 2007

u kno wen they say dont judge a book by its cover, well this is a perfect example it may be small and wat not but this thing thump thump thumps. i have one in my Lexus LS 400 to replace the old stock one and there is a huge diff. I mean sum people r like man wat do u have in the trunk wen there riding wit me and then i show them and there like i would never had exspected that amount of bass to come from that small of a sub but then again its a fosgate

6 of 7 found this helpful

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Artie

Brooklyn Park, MN

Overall
Durability
Value
Features
Design
Usability
Great

November 18, 2009

The sound and quality of the Fosgate Punch P1S48 is what I was looking for in my Ford Expedition

5 of 6 found this helpful

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Greg Gou

Enfield CT

Overall
Durability
Value
Features
Design
Usability
Fun subs

February 21, 2011

I made custom cabinets for these. I have 2 in one box and 2 in another ported with components. I guess i should say i made custom speaker towers. I have them hooked up to my jvc giga tube and its sooo loud. And in my cave in the basebent i have my 62 inch flat screen and i have p2 15's custom built in the back of the couch hooked up to alpine mrp-m500 and when im watching a movie and a suspensfull part comes up these subs shake and rumble your body like our in a movie theatre with the volume maxed out. lol. ROCKFORD will allways be my first choice.

4 of 5 found this helpful

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anthony

miami, FL

Overall
Durability
Value
Features
Design
Usability
great value and great performance!

December 27, 2010

I totally recomend these! Sound quality really good a advice would be not to install it in a door they are very powerful and need a sub box

4 of 5 found this helpful

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Isaac

Mohave Valley, AZ

Overall
Durability
Value
Features
Design
Usability
Good lil sub

August 12, 2010

Nice little sub for my midbass. Tough little guy too. Throwing 200 watts at it everyday and it handles it just fine.

4 of 5 found this helpful

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Doug

Mason, MI

Overall
Durability
Value
Features
Design
Usability
I like it

March 11, 2009

I have this single sub in a sealed box in my 05 Tacoma and love it. It won't shake you teeth out but you can feel it in the seat.

4 of 5 found this helpful

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Jack

Milton, WV

Overall
Durability
Value
Features
Design
Usability
WOW its only an 8 inch!?!?

January 31, 2009

I have an 86 bronco and i wanted something small because there is a lack of space for a larger sub. This sub surprised me when i first plugged it in because it kicks really hard for a small sub. When using it, it feels and sounds like a 10 or 12 inch. Would HIGHLY recommend to any one that wants a sub but is lacking in space.

4 of 5 found this helpful

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Mike

Torrance, CA

Overall
Durability
Value
Features
Design
Usability
Great Sub

December 20, 2008

Bought this sub to replace the factory one in the Explorer. Incredible difference in sound, the sound is amazing I would recommend this to anyone wanting to add or replace this sub. Also Sonic is great to deal with, Super dealer I will be a return customer!! Thanks Sonic, you are the BEST!!!

4 of 5 found this helpful

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Ben

Scotts Valley, CA

Overall
Durability
Value
Features
Design
Usability
Good purchase, good quality

October 13, 2008

I just put one of these into my MR2 and it fills out the sound nicely. With a small two-seater, space is at a premium and I was able to put this behind the passenger seat. It made a huge difference in the amount of bass.

4 of 5 found this helpful

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sheldon

sallis, MS

Overall
Durability
Value
Features
Design
Usability
waste of money

September 22, 2008

i bought these to go in a pt cruiser and you would think that a hatch back would be ideal for them. sounded bad and i literally gave them away. I will never buy another pair. wasted money. looked good but not of quality.

3 of 4 found this helpful

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william

Harrisburg, IL

Overall
Durability
Value
Features
Design
Usability
VERY GOOD

December 7, 2007

Over all this is a very good product I now own two, in a single cab ranger, with a 600 watt amp these things hit, dont let the size fool you they are worth every dime and some. You will not be disappointed.

3 of 4 found this helpful

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Accessory Tools and Products

Accessories added

NVX 25 ft. of True Spec 12 Gauge Speaker Wire

100% OFC wire with EnvyFlex metallic jacket insulates and protects against damage from extreme conditions.

Your Price $39.99

25 ft. of Streetwires 12 Gauge Speaker Cable

You'll need speaker wire to hook up that new subwoofer!

Your Price $37.85

Belva 23 ft. of 12 Gauge Speaker Wire

Ultra-flexible PVC blended jacket for easy installation.

Your Price $14.99

20 Square Feet of Sound Dampening Material

NVX Sound dampening is thicker than competitors, eliminates rattles and gives you bigger bass!

Your Price $53.99

Stinger Sound Dampening Trunk Kit

Stinger's Roadkill sound dampening series is sure to kill unwanted road noise and rattles! Enough sound dampening for your whole trunk!

Your Price $64.99

2" Universal, Professional Heavy Duty Roller for Sound Damping/Dampening

Universal rubber roller to make it easy to install sound dampening.

Your Price $7.99

Car Stereo and Speaker Installation Tool Kit

Includes Test Light, Crimp/Splice Tool, Multi-bit Screwdriver and more.

Your Price $18.99

Cordless Multi-Functional Heat Tool Soldering Iron Kit

Continuous working lock allows you to work without holding down trigger.

Your Price $74.99

12 oz. Can of Adhesive Spray

Spray adhesive used for adhering carpet to subwoofer boxes without bubbles.

Your Price $8.99

Gold Plated Dual Terminal Banana Plug Connector

Enables an expandable, secure connection accepting up to 8 gauge wire.

Your Price $1.99

Scosche SPL Meter

Monitor the noise level of your new car audio system with this SPL meter measuring from 60-135 dB.

Your Price $21.99

1 Rockford Fosgate Punch P1S48 (09P1S48) Subwoofer

Mono Amp

2 Channel Amp - Bridged

2 Rockford Fosgate Punch P1S48 (09P1S48) Subwoofers

Mono Amp

2 Channel Amp

4 Channel Amp - Bridged

3 Rockford Fosgate Punch P1S48 (09P1S48) Subwoofers

4 Channel Amp

4 Rockford Fosgate Punch P1S48 (09P1S48) Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

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Product Summary

Manufacturer

Model Number

P1S48

UPC

780687324919

Weight

8.00lbs

Internal SKU

09p1s48

Internal Product ID

8897

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Rockford Fosgate Punch P1S48 (09P1S48)

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