Does the P3S-1x12 need a special amplifier?

It is wired internally to a 1-ohm load, so you need an amp that is stable at 1 ohm, typically a mono sub amp rated for that load.

Is this a ported or sealed box?

It is a sealed enclosure. That trades some deep-bass output for tighter response and a smaller footprint.

What comes in the box?

The loaded subwoofer enclosure and a trim ring that accepts an optional stamped mesh grille insert. The grille itself is not included.

How much power does it handle?

It is rated at 400 watts RMS. Match it with an amp that delivers roughly that much clean power at 1 ohm.

Will it fit behind a truck seat?

It is built as a shallow truck-style box, so it is meant for tight spaces behind or under seats. Measure your available depth before buying.

Can I use it with a factory stereo?

No. It needs an external amplifier and a line-level or speaker-level signal source; a factory head unit alone won't drive it.

What do buyers say about the Rockford Fosgate P3S-1x12 Slim Loaded Enclosure?

Rated 5 out of 5 from 2 ratings.

Where can I buy the Rockford Fosgate P3S-1x12 Slim Loaded Enclosure?

15 stores we checked sell it, including Walmart, Abt Electronics, Amazon, eBay, Creative Audio.

Rockford Fosgate P3S-1x12 Slim Loaded Enclosure Price History: $284.44

Q: Where is the Rockford Fosgate P3S-1x12 Slim Loaded Enclosure cheapest?

At eBay, for $284.44, 31% under what the other stores charge, as of our latest check.

What reviewers say

Owners of shallow-mount setups generally rate the P3S-1x12 well for fitting tight spaces and delivering solid output for its size. Some note it won't match a full-size ported box for deep, loud bass.

What people mention

FitPraisedOwners say the shallow box fits in tight spots like behind a truck seat.
Bass outputMixedReviewers call it punchy for its size but short of a full-size ported box on deep bass.
BuildPraisedBuyers describe the MDF box and carpet as solid and well finished.
Amp loadMixedThe 1-ohm internal wiring is convenient for mono amps but narrows amp choices.
GrilleCriticisedSome owners note the grille is not included and must be bought separately.

From Abt Electronics

Single 12" Punch Shallow subwoofer rated at 400 Watts RMS
Sealed truck box style enclosure
Constructed with 5/8" MDF
Internally wired to a 1-Ohm load
10 AWG quick-release input terminals
Covered with high density carpet in a black finish

Sizes: 12"
Materials: 5/8" MDF (Medium Density Fiberboard); covered with high density carpet
Fit: Sealed truck box style enclosure; approximate dimensions 13.5 x 27.4 x D1 5.3 - D2 3.3 in
Guarantee: One Year Limited Parts And Labor manufacturer warranty (authorized online retailer)
Returns: Extended returns through January 15th, 2027
Shipping: Free Shipping
In the box: Loaded subwoofer enclosure, Included trim ring ready to accept optional stamped mesh grille insert

About the Rockford Fosgate P3S-1x12 Slim Loaded Enclosure

The Rockford Fosgate P3S-1x12 is a loaded subwoofer enclosure with a single 12-inch Punch Shallow subwoofer. The subwoofer is rated at 400 watts RMS. The enclosure is a sealed truck box style.

The box is built from 5/8-inch MDF and covered in black high-density carpet. It is internally wired to a 1-ohm load. Input is through 10 AWG quick-release terminals.

A trim ring is included and is ready to accept an optional stamped mesh grille insert.

Subwoofer: Single 12" Punch Shallow
RMS Power: 400 watts
Enclosure Type: Sealed truck box style, single
Impedance: 1 ohm, internally wired
Terminals: 10 AWG quick-release input terminals
Material: 5/8" MDF
Finish: High-density carpet, black
Dimensions: Approx. 13.5 x 27.4 x D1 5.3 - D2 3.3 in
Package Weight: 26
In the box: Loaded subwoofer enclosure, trim ring for optional stamped mesh grille insert