Prime 400 Watt Full-Range Class-D 4-Channel Amplifier R400-4D

R400-4D_1
R400-4D_2
R400-4D_6
R400-4D_4
R400-4D_5
R400-4D_3
R400-4D_1
R400-4D_2
R400-4D_6
R400-4D_4
R400-4D_5
R400-4D_3
R400-4D_1
R400-4D_2
R400-4D_6
R400-4D_4
R400-4D_5
R400-4D_3

Prime 400 Watt Full-Range Class-D 4-Channel Amplifier R400-4D

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

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1 Review
Discontinued
Overview Technologies Specifications Support Accessories Wiring Wizard
Overview

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.

FEATURES AT A GLANCE

  • 12dB/octave Butterworth crossover
  • 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
  • 1 Year Warranty
Technologies
CTA-2006 Compliant

Power ratings on Rockford Fosgate amplifiers conform to CTA-2006 industry standards. These guidelines mean your amplifier's ...

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Full-Range Class-D

A full-range version of the Class-D topology which is a high efficiency amplifier design that reduces ...

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Class-D

High efficiency amplifier design that reduces current consumption from the charging system.

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P.O.W.E.R.

Power supply circuit design that allows the amplifier to increase output power as voltage increases.

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Specifications
Cta-2006 Compliant
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
Heatsink
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
Included In The Box
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.)
Compatibility
Support

Knowledge Base Articles


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Ask Our Experts

Return Authorization

Contact the Authorized Rockford Fosgate Dealer you purchased this product from. If you need further assistance, call 1-800-669-9899 for Rockford Customer Service. You must obtain an RA# (Return Authorization number) to return any product to Rockford Fosgate. You are responsible for shipment of product to Rockford.


Return Authorization Process



Diagnose First

Prior to requesting an RA, try to diagnose the failure. Many products we receive are sent back with No Trouble Found, usually due to incorrect installation. Use our RFTECH:Knowledge Base for troubleshooting assistance.



Contact Customer Support

Please call us during normal business hours at 1-800-669-9899 (option #1) and be prepared with the following information:

  • First and Last Name with complete Shipping Address
  • Product Name (T0D415)
  • Serial Number (12 or 13 digit number)
  • Failure Diagnosis (no output, no power LED, etc.)
  • Scanned copy of Original Receipt emailed to [email protected] (dealer name, purchase date, and item purchased must be legible)
  • Credit/Debit Card (if paying for out-of-warranty claims)
  • No money orders or checks.


Shipping Instructions

When shipping your product, your package MUST have the following information:

  • RA# Printed Outside of Box (as large as possible)
  • Copy of Original Receipt


Shipping Address

Ship your product (UPS or FedEx preferred) to the following:


Rockford/ AJR International
300 Regency DR
Glendale Heights, IL 60139
RA#:_______________________
Accessories
Front View of Complete Installation Kit

4 AWG Complete Installation Kit

RFK4X
read more...
Front View of Knob with Mounting Case

Universal Punch Level Control

PLC-U
read more...
Three Quarter Beauty Shot of High-to-Low Converter

4-Channel High-to-Low Converter

RF-HLC4
read more...
Top View of 4 AWG Distribution Block with Protective Cover Removed

4 AWG Distribution Block

RFD4
read more...
Wiring Wizard

Available Wiring Diagrams

Please consult your amplifier owner's manual for lowest recommended impedance.



Wiring Diagram #1



Wiring Diagram #2



Wiring Diagram #3



Wiring Diagram #4



Wiring Diagram #5



Wiring Diagram #6



Wiring Diagram #7



Wiring Diagram #8



Wiring Diagram #9



Wiring Diagram #10

Speaker Polarity

Your woofer may use one of the following to identify (+/-) terminals.

Positive +

Red Post

Purple (4Ω)

Red (8Ω)

Negative -

Black Post

No Dot

No Dot

FAQ

Determining power needed for speakers

Prevent blowing your subwoofers

Temperature differences between subwoofer voice coil types

Differences between SVC and DVC subwoofers

Speaker Polarity

Your woofer may use one of the following to identify (+/-) terminals.

Positive +

Red Post

Purple (4Ω)

Red (8Ω)

Negative -

Black Post

No Dot

No Dot

FAQ

Determining power needed for speakers

Prevent blowing your subwoofers

Temperature differences between subwoofer voice coil types

Differences between SVC and DVC subwoofers

Reviews

Nice amp

I've owned Rockford amps in the past. Picked up an R400-4D to replace a mtx amp, It just wasnt a very good amp. The R400-4D is a good amp for a simple 3 way setup. Enough power to rock the cab of a full size extended cab pickup.

5.0

1 Review
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