M2-300X4

The Rockford Fosgate M2-300X4 is a powerful and compact 4-channel marine amplifier from the M2 series, designed specifically for use in demanding environments. Thanks to Element Ready™ technology, the amplifier offers enhanced protection against moisture, dust, and corrosion, making it ideal for high-quality sound systems in boats and other recreational vehicles.

The efficient Class D technology delivers a total output of up to 300 watts RMS while consuming minimal power. The amplifier can be used in 4-channel mode at 2 or 4 ohms, as well as in bridged 2-channel mode at 4 ohms.

With built-in C.L.E.A.N. technology, the input sensitivity can be precisely adjusted to reduce distortion. The innovative P.O.W.E.R. power supply also enables higher output power as the supply voltage increases. Adjustable high-pass and low-pass filters, high-level inputs with automatic turn-on, and RCA outputs provide versatile connection and configuration options.

Features

• High-Performance 4-Channel Marine Amplifier with Class D Technology

• Element Ready™ design for demanding operating conditions

• Corrosion-protected connectors and coated electronics

• P.O.W.E.R. power supply with voltage-dependent power boost

• C.L.E.A.N. Technology for Optimal Level Adjustment

• High-pass and low-pass filters for front and rear channels

• High-level inputs with automatic power-on function

• Balanced differential inputs to reduce noise

• 2/4-Channel Input Selector Switch

• RCA signal outputs for expanding the audio system

• Controls on the top for easy adjustment

• Bridgeable operation for higher-powered speakers

• Compact design with passive cooling
  
  

Technical Specifications

General Information

• Amplifier Type: 4-Channel Marine Amplifier

• Series: Rockford Fosgate M2

• Amplifier Class: Class D

• Number of channels: 4

• Total power: 300 watts RMS

• Bridgeable: Yes

• Operating voltage: 9–16 V DC

• Frequency response: 20 Hz – 20 kHz

• Signal-to-noise ratio: over 70 dB (CTA-2006)

• Total Harmonic Distortion plus Noise (THD+N): less than 1.0%

• Performance specifications according to CTA-2006
  
  

RMS power at 14.4 V

• 4 x 50 watts RMS at 4 ohms

• 4 x 75 watts RMS at 2 ohms

• 2 x 150 watts RMS at 4 ohms (bridged)
  
  

Dynamic Performance

• 4 x 70 watts into 4 ohms

• 4 x 115 watts into 2 ohms

• 2 x 230 watts into 4 ohms (bridged)
  
  

Crossover Networks and Filters

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

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

• Filter slope: 12 dB/octave

• Filter characteristic: Butterworth

• Full-range mode (all-pass): Yes

• Separate filter settings for front and rear channels

• Bass Boost: Not available
  
  

Connections and Inputs

• RCA inputs: 4 (2 front / 2 rear)

• High-level inputs: 4 channels via two 4-pin Molex connectors

• RCA input sensitivity: 150 mV – 4 V

• High-level input sensitivity: 450 mV – 12 V

• Automatic power-on via high-level inputs

• Input selector switch: 2/4-channel

• RCA outputs: 2 (1 stereo pair)

• Balanced differential inputs

• Power connection: Screw/clamp terminal

• Speaker connections: Screw/clamp terminals

• Recommended wire gauge: 4 AWG (approx. 21.2 mm²)

• Supported speaker cable gauge: up to 8 AWG (approx. 8.4 mm²)
  
  

Power Supply and Protection

• Recommended external fuse rating: 60 A

• Maximum current draw at 13.8 V (sine wave): 39 A

• Power/Protect Status Indicator

• C.L.E.A.N. Inbound and Outbound Reports

• Passive cooling via aluminum heat sinks

• UV-resistant powder coating

• Corrosion-Resistant Terminal Blocks
  
  

Dimensions

• Width: 173 mm

• Height: 49 mm

• Length: 255 mm
  
  

What's Included

• 1 Rockford Fosgate M2-300X4 Marine Amplifier

• 2 high-level input adapters with Molex connectors

• 4 mounting screws

• 4 washers

• 1 x Allen wrench (3 mm)

• 1 x User and Installation Manual

• 1 x Individual Certificate of Achievement

• Manufacturer Information