R2-300X4

The Rockford Fosgate R2-300X4 from the Prime R2 Series is a compact and powerful 4-channel Class D amplifier that combines high efficiency, reliable performance, and excellent sound quality. With up to 300 watts RMS of total power, this amplifier is ideal for upgrading factory sound systems as well as for custom car audio installations.

Thanks to modern Class D technology, the amplifier operates with exceptional efficiency and requires very little installation space. The integrated C.L.E.A.N. technology enables precise adjustment of the input sensitivity and helps prevent signal distortion. Balanced differential inputs, high-level inputs with an automatic power-on function, and flexibly adjustable high- and low-pass filters enable versatile integration into existing and new audio systems.

The rugged die-cast aluminum housing ensures effective heat dissipation, while comprehensive protection circuits guarantee reliable operation. With the ability to bridge the channels, the R2-300X4 can be used for both four-speaker systems and higher-power 2-channel configurations.

Technical Specifications

General Characteristics

• Manufacturer: Rockford Fosgate

• Model: R2-300X4

• Series: Prime R2

• Amplifier Type: 4-channel amplifier

• Amplifier Class: Class D

• Total power: 300 watts RMS

• Number of channels: 4

• Bridgeable amplifier: Yes

• Minimum impedance (stereo): 2 ohms

• Minimum impedance (bridged): 4 ohms

• Operating voltage: 9–16 V DC

• Cooling: Die-cast aluminum housing
  
  

RMS power at 14.4 volts

• 4 × 50 watts RMS at 4 ohms

• 4 × 75 watts RMS at 2 ohms

• 2 × 150 watts RMS bridged at 4 ohms
  
  

Audio and Filter Properties

• Frequency response: 20 Hz – 20,000 Hz

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

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

• Filter characteristic: Butterworth

• Slope: 12 dB/octave

• Filter modes: High-pass / Low-pass / All-pass (full-range)

• Signal-to-noise ratio: over 70 dB according to CEA-2006

• RCA input sensitivity: 150 mV – 4 V

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

• Variable Input Sensitivity (Gain): Yes

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

Connections and Features

• Balanced differential inputs to reduce noise

• RCA low-level inputs

• High-level inputs for connecting to factory-installed radios

• RCA signal outputs for transmitting the audio signal

• Automatic power-on function via a high-level signal

• Automatic power-on feature that can be disabled

• Adjustable Crossovers

• Controls on the top of the housing

• Short-Circuit Protection Circuit

• Overcurrent Protection Circuit

• Thermal Protection and Power Control (Rollback Protection)

• Compact, rugged die-cast aluminum housing
  
  

Power Supply and Dimensions

• Operating voltage: 9–16 volts DC

• Recommended external battery fuse: 60 A

• Fuse not included

• Length: 255 mm

• Width: 173 mm

• Height: 49 mm
  
  

What's Included

• 1 × Rockford Fosgate R2-300X4 4-Channel Amplifier

• 1 × User and Installation Manual

• Mounting hardware as specified in the manufacturer's packaging