Rockford Fosgate R500-1D | 500W Class D Monoblock Amplifier

Rockford Fosgate R500-1D

500W RMS PRIME Series Monoblock Amplifier

500W RMS PRIME Series Monoblock Amplifier

PRIME Series Single-Channel Monoblock Class D Car Amplifier • 250W x 1 Chan. @ 4 Ohms • 500W x 1 Chan. @ 2 Ohms • Tuned Bass EQ • Variable Low-Pass Filter • Extruded Aluminum Heatsink


List price $311.99
Save: $62.00


In Stock with warranty
Thanks , You Pay:
Order within 14 hrs 16 mins to ship 6/22

FREE delivery: Wed, June 23 to VA.

Item Condition: Brand new

The item is brand new and not used.


Add a protection plan

3 years for

60-Day Money-Back

Hassle Free Returns

365-Day Coverage

Warranty assistance for a year

Rockford Fosgate

Authorized dealer

Rockford Fosgate R2-500X1

Prime Series 500 Watt MonoBlock Amplifier
Quantity: 1

General Features:

  • Rockford Fosgate Prime R2-500X1
  • RMS Power Rating:
    • 4 ohms: 300 watts x 1 chan.
    • 2 ohms: 500 watts x 1 chan.
  • Total power output: 500 watts
  • Balanced Differential Inputs with RCA Pass Through Outputs
  • High Level Input Capable
  • Defeat able Auto Turn On Circuit
  • Features C.L.E.A.N. Set-up
  • Variable Input Gain adjustment level
  • R.L.C. Remote Level Control
  • Variable Infrasonic Filter
  • Continuously Variable On Board Punch EQ
  • Top Mounted Control Panel
  • Short Circuit & Over Current Protection
  • CEA-2006 Compliant & CE Compliant
  • Full Range Class D
  • Rollback Protection
  • Fully Adjustable 12 dB/octave High and Low pass Butterworth Crossovers
  • Input sensitivity:
    • Low-Level: 150 mV - 4 V
    • High-Level: 450 mV - 12 V
  • Frequency Response: 20 Hz - 250 Hz
  • Total Harmonic Distortion (THD): >1%
  • Crossover Controls
    • Low-Pass: 50 Hz - 250 Hz
    • Sub Infrasonic: 15 Hz - 40 Hz
  • Recommended Fuse Rating: 80A
  • 4 gauge power and ground wiring is recommended for installation. Contact us for information regarding a discount on select amplifier kits from our website when purchased together with this amplifier. Click Here for our contact information.
  • Dimensions: "1.9" x "6.8" x "8.5"
  • Authorized Internet Dealer
  • 1 Year Manufacturer's Warranty

Check out the Rockford Fosgate R2-500X1 Owner's Manual

Product history:

Rockford Fosgate R500X1D thumbnail
(newest, current model)
Rockford Fosgate R500-1D thumbnail
(previous model, replaced by Rockford Fosgate Prime R500X1D)
Rockford Fosgate R500-1 thumbnail
(previous model, replaced by Rockford Fosgate R500-1D)
Power Specifications - Subwoofer Channel
RMS Power @ 4 ohms
250 watts x 1 channels
RMS Power @ 2 ohms
500 watts x 1 channels
Power Specifications - Full Range Channels
Peak Power @ 4 ohms
Peak Power @ 2 ohms
Peak Power @ 1 ohm
Bridged Peak/Max Power
Power Specifications - Subwoofer Channel
Peak Power @ 4 ohm
Peak Power @ 2 ohms
Peak Power @ 1 ohm
Amplifier Specifications
Amplifier Series
Marine Certified
Amplifier Class
Number of Channels
1 - Mono
Total RMS Power Output
500 watts
Maximum Input Gauge Size
Minimum Impedance Unbridged
2 ohms
Minimum Impedance Bridged
Not Bridgeable
THD at Rated RMS Power
Speaker Level Inputs
Preamp Outputs
1 pair
Built-in Crossover
Low-Pass (LP)
Low-Pass Crossover Frequency
50 - 250 Hz
Signal-to-Noise Ratio
80 dB
Bass Boost
0 - 12 dB
Bass/Gain Remote
Fan Cooled
Fuse Rating
25A x 2 
Total Fuse Rating
CEA-2006 Compliant
Sonic Certified Amplifier
Amp Bluetooth Connectivity
Hi-Res Certified
Authorized Dealer
Authorized Dealer
What is in the box?
WITB: Amplifiers
Other Accessory #1
Other Accessory #2
Other Accessory #3
Other Accessory #4
Other Accessory #5
Specials with this Item
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Sonic Electronix
  • 3Sixty3 Aftermarket Setup Wizard Tutorial
  • How To Install an Amplifier: Car Amplifier Basics Part 2
Rockford Fosgate R500-1D

Rockford Fosgate R500-1D



Write a review

Overall rating distribution

5 star
4 star
3 star
2 star
1 star

By feature average rating



June 18, 2012

I Really Like It

When I first pulled this amp out its packaging, I had to laugh a little. It's got a footprint that's only a bit bigger than a CD case. It weighs a couple of pounds at most, and has a very understated look. The birth sheet states 558 watts RMS @ 2ohms. I hooked it up to an MTX RTS12-04 in a factory spec box. I used 8-gauge power wire from RF and 10 gauge speaker wire. I put the box in the trunk of my Honda Accord with the port and cone facing into the cabin - back seats folded down. Let me tell you, this little amp does some serious work! My roof/trunk/door panels all flex like crazy. I can see my shirt and the plastic bags on my floor vibrating on the low notes. I can even feel my hair shaking and smell my poor sub's voice coil. Mind you, it's still only wired at 4 ohms! I can't wait to hook it up to a good 15 at 2 ohms.

I think this amp is perfect for people wanting loud bass without having to modify their car's electrical system. My car came stock with a 130 amp alternator, so this little guy won't even come close to over-drawing my charging system. Also, it can't draw more than about 50 amps, so you can use 8-gauge power wire as long as it's high quality. You have to love the efficiency of a class-D amp. It barely gets warm to the touch after blasting for 20 minutes at full volume.

If there is a better amp out there for the money, I haven't heard of it. Having owned it for only a few days, I have yet to test its durability. However, Rockford Fosgate is well known for the quality of their products. The bass remote knob is an awesome feature that you must buy separately with most other amps. The low-pass filter and bass boost controls work well and aren't obtrusive. The heat sink design is nice and clean, which is great because I hate bright flashy colors. Also, the blue power-on LED lights up my trunk at night, which is cool. All in all, this amp is better than expected and I could not be happier. If you want loud bass without a big amp, this is it.


found this helpful.


February 21, 2013

A solid amp

Bought this to power my 2 alpine type e 10s and man am i happy. Makes the subs bump hard in only a 1.1 cubic foot box for both. Would recommend this amp to any one looking for a reliable amp. Came in at 546 rms.


found this helpful.


December 19, 2012


Using this with 2 JL Audio w3s (the 6.5" sub)
subs rated for 125RMS and this puts out just enough to make them hit hard for how small they are. Tiny size makes it fit anywhere, could use some better terminals tho


found this helpful.


March 6, 2013

Great Amp

Works great, easy to use, bought for a great price, free shipping is the best


found this helpful.

tha browncow

May 26, 2012

amazing output for its size

I'm running this in a 99 olds intrigue (stock electric) with a hypnotic 12" zen in a 3.25 cuft box tuned at 34 hz and its nuts.

I was disappointed when I seen I bought the smaller r500.1d instead of the older r500.1 which is roughly 9" wider.

Regardless this little guy slams, it's definitely worth the price I recommend to all.

Amp came with a birth sheet stating 560 rms @ 2 ohms

Look/design received a 4 because of the spade terminals.


found this helpful.


May 30, 2021

Great little amp

The following review is for R2-500X1, which is a part of the bundle you are viewing.

Paired this with an R2-300x4 and a Kicker L7 10. Love the clean clip light for input and output. Makes installing and tuning the amps extremely easy


found this helpful.


May 30, 2021

Great little amp

The following review is for R2-500X1, which is a part of the bundle you are viewing.

Paired this with an R2-300x4 and a Kicker L7 10. Love the clean clip light for input and output. Makes installing and tuning the amps extremely easy


December 7, 2020

Best deal ever

The following review is for R2-500X1, which is a part of the bundle you are viewing.

Can’t wait to hear Two day delivery is nice


Best selling similar products

Alpine MRV-M500

• RMS: 300W x 1 @ 4 ohms, 500W x 1 @ 2 ohms
• Total Peak Power: 1000W
• CEA-2006 Compliant Amplifier
• 4-Channel Speaker-Level Inputs
• Heavy Duty Aluminum Alloy Heat-Sink
• Dimensions: 7-7/8"W x 7-7/8"L x 2-3/16"H



Kicker CXA400.1 (46CXA4001)

• 150 Watts RMS x 1 @ 4 ohms
• 300 Watts RMS x 1 @ 2 ohms
• 400 Watts RMS x 1 @ 1 ohm
• Efficient Class-D Monoblock Amplifier
• KickEQ™ 6dB variable bass boost for those additional low frequencies
• FIT+™ (Fail-safe Integration Technology-PLUS) means it works with nearly every radio



DC Audio 10.0k

• RMS Power: 3000W x 1 @ 4 ohms, 5500W x 1 @ 2 ohms, 10,000W x 1 @ 1 ohm
• Strappable for Up to 20,000W of Power
• Variable Low Pass Filter
• Dimensions: 11.5" W x 37" L x 2.6" H



DC Audio 9.0k

• RMS Power: 2400W x 1 @ 4 ohms, 4800W x 1 @ 2 ohms, 9000W x 1 @ 1 ohm
• Strappable for Up to 18,000W of Power
• Variable Low Pass Filter


Hifonics ZG-3200.1D

• 3200 Watt Class D Amplifier
• Bass Remote Included
• Angled Terminals for Easy Installation
• Speaker and RCA Level Inputs


Searches Related to the Rockford Fosgate R500-1D


Model Number:




Internal SKU:


Internal Product ID:


Item Added to Cart

500W RMS PRIME Series Monoblock Amplifier


Keep Shopping

Why SquareTrade?

  • The #1-Rated Protection Plan
  • 5-Day Service Guarantee & Free Shipping
  • Protection from Normal, Everyday Use
You have added a warranty
Add Warranty
3 years of protection

Belva BAK42BK 4 Gauge Amplifier Installation Kit

Great amps need great wire at a great price. This amp kit has everything you need!


FREE NVX XMountPro Cell Phone Mount with Select Orders

Spend $200 and use code XMOUNTPRO to get this free!.



80W 2-Channel Line Output Converter with Digital Noise Filter + Line Driver



Don't see the accessory you're looking for?
View all available accessories for the Rockford Fosgate R500-1D.