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Reviewers praise its clear, punchy sound, ample power for speakers plus a sub, and compact, easy installs with useful tuning features; a few users note tight under‑seat fits, extra wiring needs, and isolated reliability/service issues.
Buyer confidence
86%Highlights
- Full Range Class-D
- Front, Rear and Sub Variable Input Gain adjustment level
- CEA-2006 Compliant & CE Compliant
- Cast aluminum heat sink
Key specs
Full specs- Number of Channels
- 5
- Total Power (Sum of Rated Power)
- 750 Watts
- Rated Power (RMS Continuous Power)
- 50 Watts x 4 + 200 Watts x 1 @ 4Ω 100 Watts x 4 + 350 Watts x 1 @ 2Ω 200 Watts x 2 + N/A @ 4Ω Bridged/Mono
- Dynamic Power (PVC/PowerCube®)
- 70 Watts x 4 + 241 Watts x 1 @ 4Ω 114 Watts x 4 + 426 Watts x 1 @ 2Ω 234 Watts x 2 + N/A @ 4Ω Bridged/Mono
- Bridgeable
- Yes
- Frequency Response
- 20 Hz - 20 kHz
- 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
- 5
- Total Power (Sum of Rated Power)
- 750 Watts
- Rated Power (RMS Continuous Power)
- 50 Watts x 4 + 200 Watts x 1 @ 4Ω 100 Watts x 4 + 350 Watts x 1 @ 2Ω 200 Watts x 2 + N/A @ 4Ω Bridged/Mono
- Dynamic Power (PVC/PowerCube®)
- 70 Watts x 4 + 241 Watts x 1 @ 4Ω 114 Watts x 4 + 426 Watts x 1 @ 2Ω 234 Watts x 2 + N/A @ 4Ω Bridged/Mono
Highlights
Overview- Full Range Class-D
- Front, Rear and Sub Variable Input Gain adjustment level
- CEA-2006 Compliant & CE Compliant
Review highlights
Based on customer reviewsCompact, feature‑rich 5‑channel amp with clear, punchy sound
Reviewers praise its clear, punchy sound, ample power for speakers plus a sub, and compact, easy installs with useful tuning features; a few users note tight under‑seat fits, extra wiring needs, and isolated reliability/service issues.
What buyers praise
- Clear, punchy sound that improves overall system detail
- Plenty of power to drive front/rear speakers and a sub for most setups
What to watch for
- Under‑seat installations can be tight — may need shims/plywood or creative mounting for cooling
Overview
Primed for performance, the R2-750X5 is a 750 watt rated, full-range Class-D 5-channel amplifier. The front/rear stereo channels can operate at 4Ω or 2Ω (or be bridged to a 4Ω mono load) while the dedicated mono subwoofer channel can run at 4Ω or 2Ω.
Best for
- Car audio buyers who want an efficient
- compact amp to power a 4-channel plus subwoofer system
- suitable for use with factory audio or custom aftermarket systems and for budget-conscious enthusiasts.
Key points
- 750 watt rated full-range Class-D topology for high efficiency and lower electrical demand
- Front/rear stereo channels: 4Ω or 2Ω operation; can be bridged to a 4Ω mono load
- Dedicated mono subwoofer channel: runs at 4Ω or 2Ω
- C.L.E.A.N. circuitry to assist with gain adjustment
- P.O.W.E.R. supply for increased dynamic power as vehicle voltage rises
- Integrated Punch EQ for bass enhancement (advertised up to 3X the bass)
Fit and use
Use this amp to drive front and rear speakers plus a powered sub channel in a single unit. It is designed for compatibility with factory or aftermarket head units and supports multiple impedance configurations (4Ω/2Ω) and bridged operation for the stereo channels.
What to know
This model is part of Rockford Fosgate’s Prime series, developed to offer reliable, economical performance. The Class-D design improves efficiency and reduces load on the vehicle’s electrical system. Confirm that your speakers and subwoofer impedance match one of the amp’s supported loads (4Ω or 2Ω) and that your syst…
Highlights
Key features
- Full Range Class-D
- Front, Rear and Sub Variable Input Gain adjustment level
- CEA-2006 Compliant & CE Compliant
- 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)
- Continuously Variable On Board Punch EQ
- Top Mounted Control Panel
- Short Circuit & Over Current Protection
- Rollback Protection
More info
Manufacturer details
Primed for Performance, the R2-750X5 is a 750 watt rated, full-range class-D amplifier capable of operating at 4Ω or 2Ω stereo with a mono subwoofer channel that can be run at 4Ω or 2Ω. The front/rear stereo channels can also be run at a 4Ω bridged/mono load. 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 dynamic power as voltage increases, and an integrated Punch EQ that corrects for acoustic deficiencies while delivering up to 3X the bass.
Additional details
The R2 models were 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 over 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.
Power supply circuit design that allows the amplifier to increase output power as voltage increases.
Full Range Class-D
A full-range version of the Class-D topology which is a high efficiency amplifier design that reduces current
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
CTA-2006 Compliant
Power ratings on Rockford Fosgate amplifiers conform to CTA-2006 industry standards. These guidelines mean your
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
Differential input circuitry measures the voltage of both the (+) and (-) input signal. The circuitry subtracts
NOMAD
NOMAD is a "real time" analog computer that protects your amplifier from shorting speaker wires and ...
Rollback Protection
During demanding musical conditions, the amplifier can dynamically reduce demand to prevent stress on the output
CE Compliant
This product fulfills all essential safety and environmental requirements as defined in the European Directives
Specs
Specifications
24
| Number of Channels | 5 |
| Total Power (Sum of Rated Power) | 750 Watts |
| Rated Power (RMS Continuous Power) | 50 Watts x 4 + 200 Watts x 1 @ 4Ω 100 Watts x 4 + 350 Watts x 1 @ 2Ω 200 Watts x 2 + N/A @ 4Ω Bridged/Mono |
| Dynamic Power (PVC/PowerCube®) | 70 Watts x 4 + 241 Watts x 1 @ 4Ω 114 Watts x 4 + 426 Watts x 1 @ 2Ω 234 Watts x 2 + N/A @ 4Ω Bridged/Mono |
| Bridgeable | Yes |
| Frequency Response | 20 Hz - 20 kHz |
| Input Sensitivity | Low-Level: 150 mV - 4 V High-Level: 450 mV - 12 V |
| Circuit Topology Class | Class-D |
| Total Harmonic Distortion (THD+Noise) | Front/Rear 4Ω: <1.0% Front/Rear 2Ω: <1.0% Sub 4Ω: <1.0% Sub 2Ω: <1.0% |
| Signal Input | Front Low-Level: 2 RCA Front High-Level: 4-Pin Molex Rear Low-Level: 2 RCA Rear High-Level: 4-Pin Molex Sub Low-Level: 2 RCA Sub High-Level: 4-Pin Molex Input Switch: 2/4/5 Input (works for RCA/Hi-Level inputs) |
| Signal Output | N/A |
| Tone Controls | 0 to +18 dB @ 45 Hz |
| Crossover Controls | Front High-Pass: 50 Hz - 250 Hz @ 12dB/Octave Butterworth Front Low-Pass: 50 Hz - 250 Hz @ 12dB/Octave Butterworth Rear High-Pass: 50 Hz - 250 Hz @ 12dB/Octave Butterworth Rear Low-Pass: 50 Hz - 250 Hz @ 12dB/Octave Butterworth Sub Low-Pass: 50 Hz - 250 Hz @ 12dB/Octave Butterworth Sub Infrasonic: 15 Hz - 40 Hz @ 12dB/Octave Butterworth |
| Remote Controls | Yes |
| Visual Indicators | POWER (Blue) / PROTECT (Red) C.L.E.A.N. IN (Red) C.L.E.A.N. OUT Front (Blue/Red) C.L.E.A.N. OUT Rear (Blue/Red) C.L.E.A.N. OUT Sub (Blue/Red) |
| Power Wire Gauge | 4 AWG |
| Power Input Connector | Compression Terminal Block |
| Speaker Wire Gauge | 8 AWG |
| Speaker Output Connector | Compression Terminal Block |
| Cooling | Convection |
| Operating Voltage | 9 - 16 VDC |
| Recommended Fuse (not included) | 120 A |
| Max. Current Draw (13.8V Sinewave) | 71 A |
| Dimensions (H x W x D) | 1.9" x 6.8" x 11.2" (4.9 cm x 17.3 cm x 28.5 cm) |
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Installation resources
Wiring diagrams
11
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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