Rockford Fosgate R2-750X5

Performance Specifications

• RMS Power Output:
  • Full Range Channels: 50 watts × 4 at 4 ohms
  • Subwoofer Channel: 200 watts × 1 at 4 ohms
• Power at 2 Ohms:
  • Full Range Channels: 100 watts × 4
  • Subwoofer Channel: 350 watts × 1
• Bridged Power: 200 watts × 2 at 4 ohms (full range channels)
• Minimum Impedance:
  • Bridged: 4 ohms
  • Unbridged: 2 ohms
• Frequency Response: 20-20,000 Hz
• THD at Rated RMS Power: 1%
• Signal-to-Noise Ratio:
  • Full Range Channels: 80 dB
  • Subwoofer Channel: 75 dB
• Input Voltage: 14.4V
• Fuse Rating: 120 amp (external)
• Replaces Previous Model: Rockford Fosgate R600X5

Physical Specifications

• Dimensions:
  • Width: 11-1/4 inches
  • Height: 2 inches (1-15/16 inches in spec sheet)
  • Depth: 7-3/4 inches (6-13/16 inches in spec sheet)
• Mounting Options:
  • Vertical, horizontal, or inverted
  • Horizontal mounting recommended for best cooling

Amplifier Features

• Amplifier Class: D
• Built-in DSP: No
• Fan Cooled: No
• Remote Control: Yes (included for subwoofer channel)

Audio Controls

• Input Switch: 2-channel, 4-channel, or 5-channel selection
  • In 2-channel mode, front input signal feeds all channels
• Independent Front/Rear Controls:
  • Gain: Rotary controls (labeled 0-11)
    • Input sensitivity: 150mV-4V line level or 450mV-12V speaker level
  • Crossover: 3-position switch (low-pass, all-pass, high-pass)
    • Low-pass range: 50-250 Hz (12 dB/octave Butterworth)
    • High-pass range: 50-250 Hz (12 dB/octave Butterworth)
  • Frequency: Rotary dials (50-250 Hz, continuously variable)
• Subwoofer Channel Controls:
  • Gain: Rotary control (labeled 0-11)
  • Low-Pass Filter:
    • Always engaged (cannot be bypassed)
    • Frequency range: 50-250 Hz (12 dB/octave Butterworth)
  • Infrasonic Filter:
    • Variable: 15-40 Hz
    • Slope: 12 dB/octave
  • Bass Boost (Punch EQ):
    • Range: 0 to +18 dB
    • Frequency: 45 Hz

Remote Level Control

• Function: Controls subwoofer channel output level from dash or center console
• Dimensions:
  • Width: 1.16″ (2″ including mounting flanges)
  • Height: 0.92″
  • Depth: 1.55″ (2.375″ including knob and wiring)
• Cable Length: 16 feet (RJ-25 connector on both ends)

Connectivity

• Power/Ground Terminals: Nickel-plated set-screw terminals (accommodate up to 4-gauge wire)
• Remote Turn-On Terminal: Nickel-plated set-screw terminal (accommodates up to 8-gauge wire)
• Speaker Terminals: Nickel-plated set-screw terminals (accommodate up to 8-gauge wire)
• Input Options:
  • RCA inputs (three pairs: front, rear, and subwoofer)
  • Speaker-level inputs with included harnesses
• Auto Turn-on Switch: For DC offset detection with speaker-level inputs

Installation Requirements

• External Fuse Required: 120-amp fuse placed within 18″ of battery
• No onboard fuses
• Recommended Wiring: 4-gauge power and ground wires

Package Contents (Detailed)

• 5-Channel amplifier
• Wired Remote Level Control module
• 16′ Remote cable (RJ-25 connector on both ends)
• Three 7″ Speaker input harnesses
• 3mm Allen Hex key
• Hardware:
  • Four 3/4″ screws
  • Two 1/2″ screws
  • 5 flat washers
  • 1 nut
• Documentation:
  • Installation and Operation instructions (English/French/Spanish/German/Italian)
  • Certificate of Performance
  • Rockford Fosgate contact information

Configuration Options

• 5-Channel Mode: Power four speakers plus a subwoofer
• 4-Channel Mode: Power bridged front speakers, standard rear speakers, and a subwoofer
• 3-Channel Mode: Power two pairs of bridged speakers and a subwoofer