Unit includes: Car Amplifier, Mounting hardware, and Instruction manual Rockford Fosgate R400-4D 400 Watt 4-Channel Class D Car Amplifier: Features:
400 Watt Prime Series 4-Channel Class D Car Amplifier
Top mounted controls
LED indicators for Power and Protect
Provides three way protection circuitry, which includes thermal, overload and speaker short circuits
Revolutionary P.O.W.E.R. system that changes output power with change in voltage
Heavy-duty cast aluminum heat sink for utmost heat dissipation
Requires minimum 4 gauge power and ground wiring for installation
CEA-2006 compliant amplifier
Frequency Response: 20Hz to 20KHz +/- 1.0dB
Inputs and Outputs:
4 channel operation
Nickel-plated RCA level inputs
Nickel-plated RCA level outputs
Input sensitivity is 150mV to 4V
Block 12 AWG speaker connections
Block 4 AWG power connections
Max Power Output:
RMS Power Output:
4-Ohms: 75 Watts x 4
2-Ohms: 100 Watts x 4
4-Ohms: 200 Watts x 2 (Bridged)
Built in Crossover:
Front variable: 50 Hz - 500 Hz @ 12 dB/octave
Rear variable: 50 Hz - 500 Hz @ 12 dB/octave
Overall Dimensions: 1.97”
(H) x 6.77” (D) x 9.10” (W)
Installation Video's & Manuals
We show you how to install a complete car audio system. We install a subwoofer, and amplifier, front speakers, rear speakers, and add sound dampening material on the rear deck and in the front doors.
Buy a Rockford Punch series amplifier and receive a free PLC2 bass control, a free Rockford wiring kit, and a 2-year Warranty at no cost!
We show you how to install an amplifier in a vehicle with a factory amplified audio system.
Amplifiers are power hungry devices that are the heart of every car audio system. A power line fuse on your amp is essential because without one you could have a fire if the power wire is accidentally shorted. We show you how to properly wire a fuse at the battery of your vehicle.
We show you how to wire speakers to your amplifier. We show 2 channel, 3 channel,
4 channel and 5 channel connections.
We show you how to set the gains on your amplifiers correctly using an inexpensive oscilloscope. Using the DSO Nano V3, we demonstrate what amplifier clipping looks and sounds like. We then demonstrate how to set your system up the right way and prevent these damaging issues.