Overview

If the 300-watt powered boxes leave you wanting more… this is the step up.

The Rockford Fosgate P500-12P is a complete, all-in-one bass solution built around a 12" subwoofer and a true 500-watt amplifier. It delivers deeper bass, more output, and a fuller sound compared to smaller powered enclosures—without getting into a full custom setup.

What It Is

A full bass system built into one enclosure.

• 12" high-output subwoofer
• Built-in 500W Class-D amplifier
• Ported enclosure for increased output

Everything is pre-matched and tuned from the factory.

Why This One

This is where powered enclosures start to get serious.

• More output than 300W models
• Deeper low-end thanks to the ported design
• Better overall presence in larger vehicles

If you actually want to feel the bass—not just hear it—this is the move.

Performance

• 500 Watts RMS power
• Ported enclosure for stronger low-frequency output
• Designed for hatchbacks, sedans, and SUVs

This hits harder and plays lower than sealed powered boxes.

Installation

Still keeps things simple.

• Works with factory or aftermarket systems
• High-level (speaker wire) inputs
• Low-level (RCA) inputs
• Auto turn-on (no remote wire needed in most installs)
• Quick disconnect power and signal connections

Easy install, with the option to remove it when you need cargo space.

Tuning & Control

Gives you real control over the output.

• Variable low-pass crossover (50Hz–200Hz)
• Bass boost (0 to +12dB)
• Phase control (0°–180°)
• Included remote bass knob

Adjust it on the fly depending on music or mood.

Build Quality

Built to handle daily use.

• 5/8" MDF enclosure
• Heat-activated vinyl finish
• Extruded aluminum heatsink
• Thermal and voltage protection

What’s Included

• 12" Powered Subwoofer Enclosure (P500-12P)
• Integrated 500W Amplifier
• Remote Bass Level Control
• Quick Disconnect Power & Signal Connections

Specifications

Power:

• 500 Watts RMS

Woofer:

• 12" High-Output Subwoofer

Enclosure:

• Ported
• 5/8" MDF construction

Frequency Response:

• 20 Hz – 200 Hz

Crossover:

• Variable 50 Hz – 200 Hz (12dB/Octave)

Controls:

• Bass Boost: 0 to +12 dB @ 45Hz
• Phase: 0° – 180°

Inputs:

• High-Level (Speaker Wire)
• Low-Level (RCA)

Dimensions:

• 15" H x 24.76" W x 7.71"–10.91" D

Quick Questions

Q: Is this a big upgrade over the 300W models?
A: Yes. Noticeably more output and deeper bass.

Q: Is it too much for a daily driver?
A: No—but it’s definitely more aggressive than entry-level setups.

Q: Will it take up space?
A: Yes. This is bigger than the slim truck boxes—plan accordingly.

Note

This is an all-in-one high-output solution.
If you want strong, clean bass without going full custom—this is right in that sweet spot.