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Rockford Fosgate R400-4DPrime 400 Watt Full-Range Class-D 4-Channel Amplifier
The PRIME R400-4D is an ultra-efficient 4-channel amplifier producing 100 Watts into four channels at 2-Ohms. Run a 4-way full-range system or use it with components on the front channels with subwoofers on the rear. • This model replaced by the R2-500X4
Highlights
- 1 Year Warranty
- Tri-stage protection covers thermal, over-current and short circuits.
- Top mounted controls
- On-board Punch EQ with +18dB boost @ 45Hz
Key specs
Full specs- Number of Channels
- 4
- Total Power (Sum of Rated Power)
- 400 Watts RMS
- Rated Power (RMS Continuous Power)
- 75 Watts x 4 @ 4-Ohm 100 Watts x 4 @ 2-Ohm 200 Watts x 2 @ 4-Ohm Bridged
- Dynamic Power (PVC/PowerCube®)
- 80 Watts x 4 @ 4-Ohms 0° Res 145 Watts x 4 @ 2-Ohms 0° Res
- Bridgeable
- Yes
- Frequency Response
- 20Hz to 20kHz +/-1dB
- Input Sensitivity
- 150 mV to 4 V
- Circuit Topology Class
- Full-Range Class D
Key specs
Full specs- Number of Channels
- 4
- Total Power (Sum of Rated Power)
- 400 Watts RMS
- Rated Power (RMS Continuous Power)
- 75 Watts x 4 @ 4-Ohm 100 Watts x 4 @ 2-Ohm 200 Watts x 2 @ 4-Ohm Bridged
- Dynamic Power (PVC/PowerCube®)
- 80 Watts x 4 @ 4-Ohms 0° Res 145 Watts x 4 @ 2-Ohms 0° Res
Highlights
Overview- 1 Year Warranty
- Tri-stage protection covers thermal, over-current and short circuits.
- Top mounted controls
Overview
Highlights
Key features
- 1 Year Warranty
- Tri-stage protection covers thermal, over-current and short circuits.
- Top mounted controls
- On-board Punch EQ with +18dB boost @ 45Hz
- 2/4 channel input switch
- 4 Gauge power/ground connectors
- RCA pass-thru outputs
- Cast aluminum heatsink
- 12dB/octave Butterworth crossover
- CTA-2006 Compliant
- Full-Range Class-D
- Class-D
More info
The Prime R400-4D amplifier offers high efficiency through the implementation of its Class-D circuitry while being able to power a full-range system. This amplifier is optimized for 4-channel front/rear systems so you can run midrange/tweeters in the front doors/dash while running midrange/tweeters in the rear doors/deck. Match with a mono amplifier for subwoofers and you'll have a Rockford Fosgate system that any Car Audio Fanatic will envy.
Technologies
CTA-2006 Compliant
Power ratings on Rockford Fosgate amplifiers conform to CTA-2006 industry standards. These guidelines mean your
Full-Range Class-D
A full-range version of the Class-D topology which is a high efficiency amplifier design that reduces current
Class-D
High efficiency amplifier design that reduces current consumption from the charging system.
P.O.W.E.R.
Power supply circuit design that allows the amplifier to increase output power as voltage increases.
Specs
Specifications
28
| Number of Channels | 4 |
| Total Power (Sum of Rated Power) | 400 Watts RMS |
| Rated Power (RMS Continuous Power) | 75 Watts x 4 @ 4-Ohm 100 Watts x 4 @ 2-Ohm 200 Watts x 2 @ 4-Ohm Bridged |
| Dynamic Power (PVC/PowerCube®) | 80 Watts x 4 @ 4-Ohms 0° Res 145 Watts x 4 @ 2-Ohms 0° Res |
| Bridgeable | Yes |
| Frequency Response | 20Hz to 20kHz +/-1dB |
| Input Sensitivity | 150 mV to 4 V |
| Circuit Topology Class | Full-Range Class D |
| Efficiency (average) | 80% @ 4-Ohm 75% @ 2-Ohm |
| Total Harmonic Distortion (THD+Noise) | 4-Ohm: <1.0% 2-Ohm: <1.0% |
| Signal Input | Low Level: 2 RCA Pair |
| Signal Output | Low Level: 1 RCA Pair |
| Tone Controls | 0dB to +18dB @ 45Hz |
| Crossover Controls | Front: Variable 50Hz - 500Hz @ 12dB/Octave Rear: Variable 50Hz - 500Hz @ 12dB/Octave |
| Remote Controls | - |
| Visual Indicators | Power Protect |
| Power Wire Gauge | 4 AWG |
| Power Input Connector | Block |
| Speaker Wire Gauge | 12 AWG |
| Speaker Output Connector | Block |
| Cooling | Convection |
| Operating Voltage | 9 - 16 VDC |
| Recommended Fuse (not included) | 50 A |
| Average Current Draw (13.8V Music) | 25 A |
| Max. Current Draw (13.8V Sinewave) | 50 A |
| Suggested Alternator | 75 A |
| Dimensions (H x W x D) | 1.97" x 6.77" x 9.10" (5cm x 17.20cm x 23.10cm) |
| Shipping Weight | 5.863 Lbs. (2.65 Kg.) |
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Installation resources
Wiring diagrams
10
Wiring Diagram #1
Source: Rockford Fosgate
Wiring Diagram #2
Source: Rockford Fosgate
Wiring Diagram #3
Source: Rockford Fosgate
Wiring Diagram #4
Source: Rockford Fosgate
Wiring Diagram #5
Source: Rockford Fosgate
Wiring Diagram #6
Source: Rockford Fosgate
Wiring Diagram #7
Source: Rockford Fosgate
Wiring Diagram #8
Source: Rockford Fosgate
Wiring Diagram #9
Source: Rockford Fosgate
Support
Return Authorization
If you bought this product from Onkar Electronics, use the Contact Us page on the Onkar Electronics website and we will help with return authorization and warranty support. If you purchased it from another dealer, contact that authorized dealer first for return assistance.
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