Overview

If you want solid bass without giving up your entire trunk—or dealing with a full custom setup—this is the move.

The Rockford Fosgate P300-8P is a compact, all-in-one powered subwoofer enclosure that adds real low-end to factory or aftermarket systems. Built with an 8" woofer and a matched 300-watt amplifier, it’s designed to be simple, clean, and effective.

What It Is

This is a complete bass solution in one box.

• Built-in 300W Class-D amplifier
• 8" high-output subwoofer
• Pre-tuned enclosure

No need to piece together amps, subs, and boxes. This is ready to go.

Why It Works

Everything is matched and optimized from the factory.

• “Closed loop” design for balanced performance
• Tight, controlled bass (not sloppy)
• Designed to perform well even in smaller spaces

Perfect for trucks, SUVs, and cars where space matters.

Installation

Built to be straightforward.

• Works with factory or aftermarket radios
• High-level (speaker wire) and low-level (RCA) inputs
• Auto turn-on (no remote wire needed in most installs)
• Quick disconnect power plug for easy removal

This is one of the easiest ways to add bass to a system.

Tuning & Controls

Gives you control without overcomplicating things.

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

Build Quality

Made to hold up in real use.

• 5/8" MDF enclosure for solid acoustics
• Heat-activated vinyl finish
• Extruded aluminum heatsink
• Thermal and voltage protection built in

What’s Included

• 8" Powered Subwoofer Enclosure (P300-8P)
• Integrated 300W Amplifier
• Remote Bass Level Control
• Wiring Connections (Quick Disconnect Power Plug)

Specifications

Power:

• 300 Watts RMS

Woofer:

• 8" High-Output Subwoofer

Enclosure:

• Vented
• 5/8" MDF construction

Frequency Response:

• 30 Hz – 200 Hz

Crossover:

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

Controls:

• Bass Boost: 0 to +12 dB
• Phase: 0° / 180°

Inputs:

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

Dimensions:

• 11.4" H x 17.6" W x 5.6" D

Quick Questions

Q: Is this going to shake my whole car?
A: No. This is clean, tight bass—not a competition setup.

Q: Can I use this with a factory radio?
A: Yes. It’s designed for that.

Q: Is it good for trucks?
A: That’s exactly where it shines—compact and easy to fit.

Note

This is a compact bass solution designed for clean, usable low-end—not extreme SPL builds.