Chat
Contact us
Close contact box
Connect ID #
428 756 563 3
Connect ID #
428 756 563 3
All finished with your chat session?

We’ll email you a transcript of this conversation for your records.

All of our representatives are
currently chatting with other customers.

Please enter your name.  
Please enter a valid email address. Why is this required?
Please enter your US phone number.  

For Tech Support, call 1-888-292-2575

Thank you, !
Our conversation will be emailed to
Please enter a question  
Don't wait on hold. We'll call you back when it's your turn to talk with the next available .
Please enter your name  
Please enter your phone number  

Please enter a message  

Calls may be recorded for training and quality control purposes.

We are located in Virginia USA.

Rockford Fosgate R2-500X4

Prime Series 4-channel car amplifier — 75 watts RMS x 4

Item # 575R2500X4

Rockford Fosgate's Prime Series R2-500X4 amplifier can power four speakers with 75 watts RMS each, so you'll...

Find what Fits your car

Rockford Fosgate's Prime Series R2-500X4 amplifier can power four speakers with 75 watts RMS each, so you'll...

Ships free

Temporarily out of stock

Ship date unknown

$249.99

About the Rockford Fosgate R2-500X4

Give your speakers the power they deserve

Rockford Fosgate's Prime Series R2-500X4 amplifier can power four speakers with 75 watts RMS each, so you'll hear your music loud and clear over the noises of the wind and road. You could also use this amp in bridged, 2-channel mode to power a couple of subwoofers with 250 watts RMS each. High- and low-pass filters help you get maximum performance from the speakers in your vehicle.

Give your speakers the power they deserve

Rockford Fosgate's Prime Series R2-500X4 amplifier can power four speakers with 75 watts RMS each, so you'll hear your music loud and clear over the noises of the wind and road. You could also use this amp in bridged, 2-channel mode to power a couple of subwoofers with 250 watts RMS each. High- and low-pass filters help you get maximum performance from the speakers in your vehicle.

Setting it up for optimum performance

Rockford Fosgate's C.L.E.A.N. technology (Calibrated Level Eliminates Audible Noise) setup system ensures your music will sound as clean and powerful as possible. It's a simple system to use — turn it up until the light shows red, then turn it down until the red light goes out. Speaker-level inputs let you hook this amp up to almost any system, even a factory stereo.

READ LESS

Product highlights:

  • 4-channel car amplifier
    • 75 watts RMS x 4 at 4 ohms
    • 125 watts RMS x 4 at 2 ohms
    • 250 watts RMS x 2 bridged output at 4 ohms (4-ohm stable in bridged mode)
  • CTA-2006 compliant
  • Class-D amplifier design
  • variable high- and low-pass filters (50-250 Hz, 12 dB/octave) on front and rear channels
More Info:
  • C.L.E.A.N. gain setup system includes clip lights
  • auto remote turn-on
  • preamp and speaker-level inputs
  • preamp outputs
  • wiring, fuse, and hardware not included with amplifier
    • 4-gauge power and ground leads and an 80-amp fuse recommended
  • dimensions: 10-1/16"W x 2"H x 7.75"D
  • warranty: 1 year
  • Our 60-day money-back guarantee
  • MFR # R2-500X4

What's in the box:

  • 4-Channel amplifier
  • Two 7" Speaker input harnesses
  • 3mm Allen Hex key
  • Four 3/4" Screws
  • 4 Flat washers
  • Installation and Operation instructions (English/ French/ Spanish/ German/ Italian)
  • Certificate of Performance
  • Rockford Fosgate contact information

Customer reviews

Loading reviews...

Rockford Fosgate R2-500X4 reviews

Average review:

16 reviews

Thanks for submitting your review

Filter by rating

Customer photos

Sort reviews

Sort by:
Items per page:
View page:

Verified customer (What's this?)
Verified employee purchase (What's this?)

Pros:

Cons:

Crutchfield response

<< >>

More details on the Rockford Fosgate R2-500X4

Mark G.

Product Research

Features
Controls
Connections

Features

Overview: The Rockford Fosgate Prime R2-500X4 is a 4-channel full-range Class D amplifier. It's effectively two full range 2-channel amps built into one chassis, labeled Front and Rear. Each section of the amp is bridgeable, so it can be wired as 4-channel, 3-channel, or 2-channel.

CEA-2006 Compliant: CEA-2006 is a system of testing and measurement for mobile audio amplifiers. This voluntary standard advocates a uniform method for measuring an amplifier's RMS power output and signal-to-noise ratio. The criteria for measuring amplifier power uses a DC input voltage of 14.4 volts and the RMS power output is measured over a frequency range of 20 Hz to 20 kHz (for full range amplifiers), with 1% or less Total Harmonic Distortion plus noise (THD+N). Signal-to-Noise ratio is measured in weighted absolute decibels (dBA) at a reference of 1 watt into 4 ohms. CEA-2006 standards allow consumers to compare car amplifiers and receivers under the same conditions (apples to apples).

CEA-2006 Specifications:

  • Power Output: 75 watts RMS x 4 into 4Ω
  • Signal to Noise Ratio: >80 dBA (measured at 1 watt into 4Ω)

Other Specifications:

  • Power Output:
    • 2Ω: 125 watts RMS x 4 (14.4 volts)
    • Bridged: 250 watts RMS x 2 (14.4 volts, 4Ω)

Mounting: The amplifier can be mounted vertically, horizontally, or inverted using the supplied mounting screws; horizontal mounting (right side up) will provide the best cooling.

Controls

Input Switch: Set this switch to match the number of inputs used, 2-channel or 4-channel. In 2-channel mode the signal on the front input feeds all four output channels.

Independent Controls: The R2-500X4 has independent, top-mounted controls for the front and rear channels:

  • Gain: rotary gain controls; labeled 0 to 11 (equivalent to 150mV-4V line level or 450mV-12V speaker level)
  • Crossover: 3-position switch; choose low-pass, all-pass, or high-pass; low-pass and high-pass crossovers are 12 dB per octave Butterworth
  • Frequency: rotary dials; continuously variable from 50-250 Hz

Auto Turn-on Switch: When using speaker level inputs, this switch can be set to On and the amp will turn on when it senses an input signal (DC offset on the left front input). When using the RCA inputs a remote turn-on wire must be connected.

Connections

Power Terminals: The power and ground terminals are nickel-plated set-screw terminals, and will accommodate up to 4-gauge wire. (Rockford Fosgate recommends using 4-gauge power and ground wire.) The set screws are tightened/loosened with the included 3mm hex key.

Fuses: The amplifier does not have on-board fuses. An 80-amp fuse should be placed on the power wire within 18" of the battery.

Remote Turn-On Terminal: The remote turn-on terminal is a nickel-plated set-screw terminal that will accommodate up to 8-gauge wire. The set screw is tightened/loosened with the included 3mm hex key.

Speaker Terminals: The speaker terminals are nickel-plated set-screw terminals that will accommodate up to 8-gauge wire. The set screws are tightened/loosened with the included 3mm hex key.

RCA Input Jacks: There are two pair of RCA input jacks for the front and rear channels. The balanced differential inputs are nickel-plated to resist signal degradation caused by corrosion.

RCA Pass-Thru Jacks: One pair of nickel-plated RCA pass-thru jacks provide a convenient way to connect an additional amplifier without running an extra set of RCA cables from the front of the vehicle to the amplifier location. The signal from the front RCA inputs is passed to the RCA outputs.

Speaker Level Inputs: There are ports for the two included speaker input harnesses, front and rear. If speaker level inputs are used, nothing should be connected to the RCA jacks.

Loading accessories...

Customer Q&A

3 questions already asked

Q
Can i install this amp with an 8GA cable kit? (60A fuse)
[ Marcelo  Oct 27, 2020 ]
2 answers
A
The R2-500X4 will accept 4ga & 8ga wire, but requires 80A fuse.
[ Richard  Oct 27, 2020 ]
A
Yes
[ JOSEPH  Oct 27, 2020 ]
Q
Will this power 4 6 1/2 inch speakers plus a sub ?
[ Andrew  May 14, 2020 ]
8 answers
A
No just the 6 1/2 speakers. And tweeters if you got em
[ ZACOREY  May 18, 2020 ]
A
no, you need a separate mono amp for the sub. if you want 1 amp to power everything you need a 5 channel amp.
[ EUGENIU  May 15, 2020 ]
A
I wouldn't recommend it. It can be used as either 2 or 4 channel so you'd either power the 4 speakers or the sub. I'd suggest getting a 5 channel or 2 separate amps for interiors and subs.
[ James  May 14, 2020 ]
A
Not well,, in my opinion. I used it to run my component sets, and use a separate amo for my sub. 4 speakers and a sub off that amp, in my opionion, is underpowered and missing a channel.
[ JOSEPH  May 14, 2020 ]
A
Technically you can, but it is not really meant for four speakers and a sub. The ideal speaker set up for this amp is four speakers, or two speakers and a sub. You would use 2 channels for the two speakers and then bridge the other two for the sub. Usually subs need a lot of power hence why you bridge two channels to power the sub. The other option, which is technically possible, but I don't recommend, is to connect the four speakers to just two channels and then bridge the other two for the sub. By the way love this amp. Great quality and lots of power!
[ EDGAR  May 14, 2020 ]
A
It will power the 4 speakers as long as they are 4ohm rated so you will run them at 2 ohms. However, for the sub I would use a separate mono amp that you can connect to the pass through rca jacks on the Rockford. This is how I'm using this amp in my RV and it sounds great.
[ Rogelio  May 14, 2020 ]
A
If your speakers are with in the rms wattage and right ohms. You could wire four speakers and a sub. I would just run you door speakers so you get better sound and life out of your amp.
[ Richard  May 14, 2020 ]
A
hey it is recommended that you only power your speakers with this type of amplifier and add a separate amp for your subs. this being a 4 channel amplifier it only has output for 4 speakers rated at 75W rms. your subs may require more output. i would recommend the Rockford r2 500x1 in addition to this for your sub. just make sure to read your subwoofer requirements and impedance.
[ ALINSON  May 14, 2020 ]
Q
How hot does this get? Small footprint amps typically generate more heat, and I'm putting this inside a closed compartment in my hatch.
[ Justin  Feb 26, 2020 ]
1 answer
A
Its winter where I'm at so it's been freezing outside. I haven't touched it really at any point. However, it's been working great for my Infinity Kappa 1200W. One sub at 2 ohms pounds!
[ Mark  Feb 27, 2020 ]

Loading articles...

TOP