PM300X2

The Rockford Fosgate PM300X2 is a powerful and compact 2-channel marine amplifier from the Punch series, designed specifically for use in boats, motorcycles, and powersport vehicles. Thanks to its rugged construction, high-quality Class A/B technology, and a total output of up to 300 watts RMS, it is ideal for driving coaxial speakers, component systems, or a single subwoofer in bridge mode.

Rockford Fosgate's proven Punch technology delivers dynamic and powerful sound reproduction. With built-in C.L.E.A.N. technology, the input sensitivity can be precisely adjusted using LED indicators to prevent distortion. The adjustable high- and low-pass filters, along with the built-in Punch EQ, allow for customization to match the connected speaker system.

Designed for demanding operating conditions, the PM300X2 features specially coated circuit boards, corrosion-resistant stainless steel components, and a solid aluminum heat sink. The concealed control panel protects the controls while ensuring a clean, uncluttered appearance.

Technical Specifications

General Characteristics

• Manufacturer: Rockford Fosgate

• Model: PM300X2

• Series: Punch Marine

• Amplifier Type: 2-Channel Marine Amplifier

• Amplifier Class: Class A/B

• Number of channels: 2

• Total power: 300 watts RMS

• Operating modes: Stereo and mono bridged

• Simultaneous stereo/mono operation is possible with suitable external passive crossovers

• Operating voltage: 9–16 V DC

• Frequency response: 20 Hz – 20 kHz

• Marine-grade construction with corrosion-resistant components
  
  

RMS Output Power

• 2 × 100 watts RMS at 4 ohms

• 2 × 150 watts RMS at 2 ohms

• 1 × 300 watts RMS bridged at 4 ohms
  
  

Impedance and Audio Specifications

• Minimum speaker impedance in stereo mode: 2 ohms

• Minimum speaker impedance in bridge mode: 4 ohms

• Total Harmonic Distortion (THD+N): less than 1.0% at rated power

• Signal-to-noise ratio: over 85 dB (based on rated power)

• Dynamic signal-to-noise ratio: over 105 dB

• Channel separation: over 50 dB

• Damping factor: over 500

• Input sensitivity: 150 mV – 12 V

• Input impedance: 20 kOhm
  
  

Crossover Networks and Tone Control

• Integrated active crossover

• Filter characteristic: Butterworth

• Filter slope: 12 dB/octave

• High-pass filter (HPF): 50–250 Hz, continuously adjustable

• Low-pass filter (LPF): 50–250 Hz, continuously adjustable

• Full-range mode: Yes

• Punch Bass EQ: 0 to +18 dB at 45 Hz

• Punch Treble EQ: 0 to +14 dB at 12.5 kHz

• C.L.E.A.N. technology for precise level adjustment

• LED indicators for detecting input and output clipping
  
  

Connections and Features

• RCA inputs: 1 pair

• RCA outputs (RCA pass-through): 1 pair

• High-level input: can be used with an optional adapter

• Automatic Power-On Function for High-Level Control

• Remote Turn-On Connection

• Connector for optional Rockford Fosgate PLC2 remote level control

• Power-on delay to prevent noise interference

• Concealed control panel accessible from above

• Solid aluminum heat sink

• Short-Circuit Protection

• Overcurrent Protection

• Protective Circuit for Low Speaker Impedance

• Status LED for operation and protection indication

• Two-component protective coating for printed circuit boards in marine applications

• Corrosion-Resistant Stainless Steel Fasteners
  
  

Power Supply

• Operating voltage: 9–16 volts DC

• Recommended external fuse rating: 50 A

• Maximum current draw: approx. 45 A

• Current consumption during music playback: approx. 23 A

• Power supply cable: 8–4 AWG

• Cooling: Passive, via aluminum heat sinks
  
  

Dimensions

• Width: 197 mm

• Height: 61 mm

• Length: 250 mm
  
  

What's Included

• 1 × Rockford Fosgate PM300X2 2-Channel Marine Amplifier

• 4 × mounting screws

• 1 × Allen wrench (2.5 mm)

• 1 × Installation and User Manual

• 1 × Quick Setup Guide

• 1 × Individual Performance Certificate
  
  

Note: The optional Rockford Fosgate PLC2 level remote control, the high-level adapter, and the connection and power cables are not included