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Rockford Fosgate Prime R2-1200X1Prime 1200 Watt Mono Amplifier

4.986 reviewsSee all reviews

Delivers strong, real-world bass power beyond its rating in a small, easy-to-set-up package; largely praised for sound and integration, with a few reports of defects and possible stress under extreme continuous use.

Buyer confidence

91%

Highlights

  • 1 Year Warranty
  • Variable Infrasonic Filter
  • Class-D Topology
  • Cast aluminum heat sink

Key specs

Full specs
Number of Channels
1
Total Power (Sum of Rated Power)
1200 Watts
Rated Power (RMS Continuous Power)
400 Watts x 1 @ 4Ω 800 Watts x 1 @ 2Ω 1200 Watts x 1 @ 1Ω
Dynamic Power (PVC/PowerCube®)
489 Watts x 1 @ 4Ω 889 Watts x 1 @ 2Ω 1389 Watts x 1 @ 1Ω
Bridgeable
No
Frequency Response
20 Hz - 250 Hz
Input Sensitivity
Low-Level: 150 mV - 4 V High-Level: 450 mV - 12 V
Circuit Topology Class
Class-D

Key specs

Full specs
Number of Channels
1
Total Power (Sum of Rated Power)
1200 Watts
Rated Power (RMS Continuous Power)
400 Watts x 1 @ 4Ω 800 Watts x 1 @ 2Ω 1200 Watts x 1 @ 1Ω
Dynamic Power (PVC/PowerCube®)
489 Watts x 1 @ 4Ω 889 Watts x 1 @ 2Ω 1389 Watts x 1 @ 1Ω

Highlights

Overview
  • 1 Year Warranty
  • Variable Infrasonic Filter
  • Class-D Topology

Review highlights

Based on customer reviews

Compact, high‑output mono amp with simple tuning

Delivers strong, real-world bass power beyond its rating in a small, easy-to-set-up package; largely praised for sound and integration, with a few reports of defects and possible stress under extreme continuous use.

86 reviews4.9/5 averageUpdated Mar 15, 2026

What buyers praise

  • Proven punch — review bench tests often show ~1400–1500W at 1Ω
  • Compact footprint — fits under seats and allows flexible mounting

What to watch for

  • A small number of reviewers reported receiving a defective unit
Overview

The Rockford Fosgate R2-1200X1 is a 1200 watt Class-D mono amplifier designed for subwoofer applications. It combines efficient Class-D operation with C.L.E.A.N. circuitry, a P.O.W.E.R. supply, Punch EQ and remote level control to help tune deep bass.

Best for

  • Driving a single subwoofer or mono subwoofer bank
  • Systems where electrical efficiency is important
  • Users who want adjustable bass tone and level (Punch EQ and remote level control)
  • Both factory audio integrations and custom aftermarket systems

Key points

  • 1200 watt Class-D mono amplifier
  • Operates at 4Ω, 2Ω or 1Ω mono
  • C.L.E.A.N. circuitry for simplified gain adjustment
  • P.O.W.E.R. supply that generates more power as voltage increases
  • Integrated Punch EQ to boost and shape low frequencies
  • Variable infrasonic filter and remote level control for bass tuning

Fit and use

Intended for mono subwoofer use; match the amplifier’s operating impedance (4Ω, 2Ω or 1Ω) to your subwoofer load. Class-D design reduces electrical demand compared with less efficient amplifier classes. Controls such as Punch EQ, the infrasonic filter and remote level control let you tailor bass response to the vehicle and listening preference.

What to know

This amplifier is part of the Prime R2 series and is described by the manufacturer as refined for easy setup with factory or aftermarket systems. Verify that speaker impedance and vehicle electrical capacity are compatible with the amplifier’s operating modes. Consult the owner’s manual for detailed specifications, wi…

Highlights

Key features

  • 1 Year Warranty
  • Variable Infrasonic Filter
  • Class-D Topology
  • Cast aluminum heat sink
  • Features C.L.E.A.N. Set-up
  • Balanced Differential Inputs with RCA Pass Through Outputs
  • High Level Input Capable
  • Auto-Sense bypass switch for vehicles with RAP (Retained Accessory Power)
  • Variable Input Gain adjustment level
  • Continuously Variable On Board Punch EQ
  • Top Mounted Control Panel
  • Short Circuit & Over Current Protection
More info

Manufacturer details

Primed for Performance, the R2-1200X1 is a 1200 watt, class-D amplifier, capable of operating at 4Ω, 2Ω or 1Ω mono. This amplifier is extremely efficient because of its Class-D technology which reduces demand on the vehicles electrical system. The amp also features C.L.E.A.N. circuitry to help you adjust your gain settings, a P.O.W.E.R. Supply that generates more power as voltage increases, and integrated Punch EQ that corrects for acoustic deficiencies while delivering up to 3X the bass. For subwoofers, a variable infrasonic filter and remote level control allows you to tune the bass for the desired level for the music.

Additional details

The R2 models are developed for car audio fanatics that want a reliable amplifier – with all the power and performance you’ve come to expect from Rockford Fosgate – at an economical price. Rockford Fosgate amplifiers are renowned world-wide for being “under rated,” easily surpassing all specifications, and most importantly, generating more power than their ratings. These 3rd generation of Prime Series amplifiers are refined with the latest Rockford Fosgate technology for easy setup and configuration, making them perfect for use with factory audio or custom aftermarket systems.

Technologies
P.O.W.E.R.

P.O.W.E.R.

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

CTA-2006 Compliant

CTA-2006 Compliant

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

Class-D

Class-D

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

C.L.E.A.N. Technology
Patent: 8,712,066

C.L.E.A.N. Technology

Time and sophisticated test equipment have been replaced, with Rockford’s integrated level setting technology

MEHSA 4 (Maximum Efficiency Heat Sink Application)

MEHSA 4 (Maximum Efficiency Heat Sink Application)

MEHSA4 (Maximum Efficiency Heat Sink Application - gen. 4) is a proprietary process that yields a better heat

Balanced Differential Inputs

Balanced Differential Inputs

Differential input circuitry measures the voltage of both the (+) and (-) input signal. The circuitry subtracts

NOMAD

NOMAD

NOMAD is a "real time" analog computer that protects your amplifier from shorting speaker wires and ...

Rollback Protection

Rollback Protection

During demanding musical conditions, the amplifier can dynamically reduce demand to prevent stress on the output

CE Compliant

CE Compliant

This product fulfills all essential safety and environmental requirements as defined in the European Directives

Specs

Specifications

25
Number of Channels1
Total Power (Sum of Rated Power)1200 Watts
Rated Power (RMS Continuous Power)400 Watts x 1 @ 4Ω 800 Watts x 1 @ 2Ω 1200 Watts x 1 @ 1Ω
Dynamic Power (PVC/PowerCube®)489 Watts x 1 @ 4Ω 889 Watts x 1 @ 2Ω 1389 Watts x 1 @ 1Ω
BridgeableNo
Frequency Response20 Hz - 250 Hz
Input SensitivityLow-Level: 150 mV - 4 V High-Level: 450 mV - 12 V
Circuit Topology ClassClass-D
Efficiency (average)> 80%
Total Harmonic Distortion (THD+Noise)4Ω: <1.0% 2Ω: <1.0% 1Ω: <1.0%
Signal InputLow-Level: 2 RCA High-Level: 4-Pin Molex
Signal OutputLow-Level: 2 RCA (Pass-Thru active with RCA or Hi-Level input)
Tone Controls0 to +18 dB @ 45 Hz
Crossover ControlsLow-Pass: 50 Hz - 250 Hz @ 12dB/Octave Butterworth Infrasonic: 15 Hz - 40 Hz @ 12dB/Octave Butterworth
Remote ControlsYes
Visual IndicatorsPOWER (Blue) / PROTECT (Red) C.L.E.A.N. IN (Red) C.L.E.A.N. OUT (Blue/Red)
Power Wire Gauge4 AWG
Power Input ConnectorCompression Terminal Block
Speaker Wire Gauge8 AWG
Speaker Output ConnectorCompression Terminal Block
CoolingConvection
Operating Voltage9 - 16 VDC
Recommended Fuse (not included)200 A
Max. Current Draw (13.8V Sinewave)121 A
Dimensions (H x W x D)1.9" x 6.8" x 11.3" (4.9 cm x 17.3 cm x 28.5 cm)
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Installation resources

Wiring diagrams

10
Wiring Diagram #1

Wiring Diagram #1

Source: Rockford Fosgate

Wiring Diagram #2

Wiring Diagram #2

Source: Rockford Fosgate

Wiring Diagram #3

Wiring Diagram #3

Source: Rockford Fosgate

Wiring Diagram #4

Wiring Diagram #4

Source: Rockford Fosgate

Wiring Diagram #5

Wiring Diagram #5

Source: Rockford Fosgate

Wiring Diagram #6

Wiring Diagram #6

Source: Rockford Fosgate

Wiring Diagram #7

Wiring Diagram #7

Source: Rockford Fosgate

Wiring Diagram #8

Wiring Diagram #8

Source: Rockford Fosgate

Wiring Diagram #9

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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