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Small footprint with strong, clean output and useful subwoofer controls — easy to set up and good value for powering a single moderate 12" or a pair of 10"s.
Buyer confidence
92%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)
- 500 Watts
- Rated Power (RMS Continuous Power)
- 300 Watts x 1 @ 4Ω 500 Watts x 1 @ 2Ω
- Dynamic Power (PVC/PowerCube®)
- 350 Watts x 1 @ 4Ω 590 Watts x 1 @ 2Ω
- 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)
- 500 Watts
- Rated Power (RMS Continuous Power)
- 300 Watts x 1 @ 4Ω 500 Watts x 1 @ 2Ω
- Dynamic Power (PVC/PowerCube®)
- 350 Watts x 1 @ 4Ω 590 Watts x 1 @ 2Ω
Highlights
Overview- 1 Year Warranty
- Variable Infrasonic Filter
- Class-D Topology
Review highlights
Based on customer reviewsCompact, sub-focused 500W amp that delivers clean, often higher-than-rated power
Small footprint with strong, clean output and useful subwoofer controls — easy to set up and good value for powering a single moderate 12" or a pair of 10"s.
What buyers praise
- Compact yet powerful — drives single moderate 12" or pairs of 10"s reliably
- Clean, sub-optimized output; several units measured above the advertised wattage
What to watch for
- Remote bass-level control can be inconsistent — reviewers reported it working well for some and having little effect until the last quarter for others
Overview
The Rockford Fosgate R2-500X1 is a 500 watt Class-D mono amplifier designed primarily for driving subwoofers. It combines efficient Class-D topology with Rockford Fosgate circuitry for adjustable, tunable bass performance.
Best for
- Subwoofer systems in cars and light vehicles
- Users who want efficient power delivery with minimal electrical draw
- Factory or custom aftermarket audio systems requiring a mono sub amp
Key points
- 500 watts output (Class-D)
- Stable at 4Ω or 2Ω mono
- C.L.E.A.N. circuitry for simplified gain adjustment
- P.O.W.E.R. supply that increases output as vehicle voltage rises
- Integrated Punch EQ for enhanced bass response (described as up to 3X the bass)
- Variable infrasonic filter to shape very low frequencies
Fit and use
Configured as a mono amplifier for subwoofer use; set impedance to match your subwoofer load (4Ω or 2Ω). Use the Punch EQ, infrasonic filter and remote level control to tune bass character and level. Designed for integration with factory or aftermarket head units and systems.
What to know
This amplifier is engineered for efficient power delivery to subwoofers and includes features to simplify setup and tuning. Verify your subwoofer's impedance and power-handling before matching with this amp. For full specifications, wiring diagrams and compatibility details, consult the manufacturer's product document…
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 R2-500X1 is a 500 watt, class-D amplifier capable of operating at 4Ω or 2Ω 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. Perfect 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 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 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.
Power supply circuit design that allows the amplifier to increase output power as voltage increases.
Class-D
High efficiency amplifier design that reduces current consumption from the charging system.
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 | 1 |
| Total Power (Sum of Rated Power) | 500 Watts |
| Rated Power (RMS Continuous Power) | 300 Watts x 1 @ 4Ω 500 Watts x 1 @ 2Ω |
| Dynamic Power (PVC/PowerCube®) | 350 Watts x 1 @ 4Ω 590 Watts x 1 @ 2Ω |
| 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 |
| Total Harmonic Distortion (THD+Noise) | 4Ω: <1.0% 2Ω: <1.0% |
| Signal Input | Low-Level: 2 RCA High-Level: 4-Pin Molex |
| Signal Output | Low-Level: 2 RCA (Pass-Thru active with RCA or Hi-Level input) |
| Tone Controls | 0 to +18 dB @ 45 Hz |
| Crossover Controls | Low-Pass: 50 Hz - 250 Hz @ 12dB/Octave Butterworth 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 (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) | 80 A |
| Max. Current Draw (13.8V Sinewave) | 52 A |
| Dimensions (H x W x D) | 1.9" x 6.8" x 8.5" (4.9 cm x 17.3 cm x 21.5 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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