R250-4

250 Watt 4-Channel Amplifier R250-4

The Prime R250-4 is a 250 watt 4-channel amplifier capable of running 2-Ohms stereo on all channels and 4-Ohms bridged/mono on the rear channels. Includes on-board Punch Bass and front/rear crossover controls.

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Discontinued
Overview Technologies Specifications Support Accessories Wiring Wizard
Overview

The Prime R250-4 is a 4-Channel amplifier perfect for any Car Audio Fanatic getting into mobile audio wanting a single amplifier to run a complete audio system. This amplifier features variable Punch Bass to tune low frequencies, variable crossovers to either protect your high frequency speakers or feeding only bass to your subwoofers, and Pass-Thru jacks for daisy-chaining another amplifier.

  • MOSFET power supply
  • Punch Bass EQ
  • 12dB/octave Butterworth crossover
  • 4 Gauge power/ground connections with built-in ATC fusing
  • 1 Year Warranty
Technologies
CEA-2006 Compliant

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

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CEA-2006 Compliant

Power ratings on Rockford Fosgate amplifiers conform to CEA-2006 industry standards. These guidelines mean your amplifier's output power ratings are REAL POWER numbers, not inflated marketing ratings.

P.O.W.E.R.

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

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P.O.W.E.R.

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

Class A/B

An amplifier topology with the best of both worlds; a Class A preamp and Class B ...

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Class A/B

An amplifier topology with the best of both worlds; a Class A preamp and Class B output stage.

Specifications
CEA-2006 Compliant
CEA-2006 Guidelines
Number of Channels
4
Total Power
(Sum of Rated Power)
250 Watts RMS
Rated Power
(RMS Continuous Power)
40 Watts x 4 @ 4-Ohms
65 Watts x 4 @ 2-Ohms
125 Watts x 2 @ 4-Ohms Bridged
Dynamic Power
(PVC/PowerCube®)
Bridgeable
Yes
Frequency Response
20Hz to 20kHz +/-1dB
Input Sensitivity
Circuit Topology Class
Class A/B
Efficiency (average)
60% @ 4-Ohm
55% @ 2-Ohm
Total Harmonic Distortion (Thd+Noise)
Signal Input
Low Level: 2 RCA Pair
Signal Output
n/a
Tone Controls
Punch Bass: 0dB/+6dB/+12dB @ 45Hz
Crossover Controls
Front Channels
High-Pass (HP): 80Hz Fixed @ 12dB/octave Butterworth
Low-Pass (LP): 50Hz-250Hz @ 12dB/octave Butterworth

Rear Channels
High-Pass (HP): 80Hz Fixed @ 12dB/octave Butterworth
Low-Pass (LP): 50Hz-250Hz @ 12dB/octave Butterworth
Remote Controls
n/a
Visual Indicators
Power
Protect
Power Wire Gauge
4 AWG
Power Input Connector
Barrier Strip
Speaker Wire Gauge
8 AWG
Speaker Output Connector
Barrier Strip
Cooling
Convection
Heatsink
Operating Voltage
Recommended Fuse
(Not Included)
Average Current Draw (13.8V Music)
Max. Current Draw (13.8V Sinewave)
Suggested Alternator
Dimensional Diagram
Dimensions (H x W x D)
2.4 x 7.7 x 11.6 (in)
6.1cm x 19.6cm x 29.4cm (cm)
Shipping Weight
6 Lbs.
(2.72 Kg.)
Compatibility
Support

Knowledge Base Articles


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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.


View Process

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 cs.support@rockfordcorp.com (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

8 AWG Complete Installation Kit

RFK8X
read more...

4 AWG Positive/Negative Battery Terminal

RFDB4
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

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