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Rockford Fosgate P500-4

500W RMS Punch Series 4-Channel Amplifier (P5004)

  • 4.8

(6 reviews)

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$399.99

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$239.00

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  • Punch Series 4-Channel Class AB Car Amplifier
  • RMS Power Rating:
    • 4 ohms: 60 watts x 4 chan.
    • 2 ohms: 125 watts x 2 chan.
    • Bridged, 4 ohms: 250 watts x 2 chan.
  • Dynamic Rockford Power Output: 726 watts
  • MOSFET power supply
  • Remote bass level input (remote level control sold separately)
  • LED power, thermal, and protect indicators
  • Tuned bass EQ (0 - 18 dB bass boost at 45 Hz)
  • On-board differential inputs eliminates noise picked up by the signal cable
  • DSM utilize 1% tight-tolerances improving efficiency of the circuit, decreases cross-talk from other discrete components and lowers operating temperature
  • Integrated Trans-ana technology simplifies the signal path of the amplifier allowing the signal to travel through the amplifier at a lower voltage. The result is greater reliability and exceptional sound quality
  • Featured custom designed TO-247 MOSFETs have 60% more metal tab area providing more power handling capacity, lower impedance and improved heat dissipation over traditional TO-220 MOSFETs found in most competitor's amps
  • Built in NOMAD is a "real time" analog computer that protects your amplifier from shorting speaker wires and dangerously low speaker impedances
  • Cast aluminum heatsink allows for a high performance energy tolerance
  • Dynamic Thermal Management evenly distributes excess heat across entire amplifier heatsink
  • 4/2 channel operation for additional adjustments
  • Heavy duty aluminum alloy heatsink
  • Nickel-plated RCA level inputs
  • Nickel-plated screw terminals
  • Variable high-pass filter (50-500 Hz, 12 dB/octave)
  • Variable low-pass filter (50-500 Hz, 12 dB/octave)
  • Frequency response: 20-20,000 Hz
  • CEA-2006 compliant amplifier
  • Dimensions: 13-1/64"L x 7-5/8"W x 2-1/4"H
  • 4-gauge power and ground wiring is required for installation. Contact us for information regarding a discount on select amplifier kits when purchased together with this amplifier.
  • 1-year Sonic Electronix warranty

Product History:

Rockford Fosgate P500-4 thumbnail
(newest, current model)
Rockford Fosgate P450.4 thumbnail
(previous model, replaced by Rockford Fosgate P500-4)
Power Specifications - Full Range Channels
RMS Power @ 4 ohms 60 watts x 4 channels
RMS Power @ 2 ohms 125 watts x 4 channels
Bridged RMS Power 250 watts x 2 channels
Amplifier Specifications
Amplifier Class AB
Number of Channels 4
Total Peak Power Output 726 watts
Total RMS Power Output 500 watts
Maximum Input Gauge Size 8 AWG
Minimum Impedance Unbridged 2 ohms
Minimum Impedance Bridged 4 ohms
THD at Rated RMS Power 0.05%
Speaker Level Inputs No
Preamp Outputs 2 pairs
Built-in Crossover Low-pass (LP)
High-pass (HP)
Full (AP)
High-Pass Crossover Frequency 50 - 500 Hz
Low-Pass Crossover Frequency 50 - 500 Hz
Signal-to-Noise Ratio 105 dB
Bass Boost 0 - 18 dB
Bass/Gain Remote No
Fan Cooled No
Fuse Rating 100A x 1 
CEA-2006 Compliant Yes
Warranty and Return Policy
Return Policy Standard Return Policy
Parts Warranty Duration 1 year
Labor Warranty Duration 1 year
Warranty Provider Sonic Electronix
Customer Review Summary for Rockford Fosgate P500-4
Average Customer Rating is 4.8 out of 5 stars:
  • 4.8
based on 6 Reviews
Share your thoughts with others:
Rating Distribution:
5 star:
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83%
4 star:
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17%
3 star:
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0%
2 star:
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0%
1 star:
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0%
what's this?
Average Attributes Rating:
Durability
  • 4.8
4.8
Value
  • 4.5
4.5
Features
  • 5.0
5.0
Design
  • 5.0
5.0
Usability
  • 4.7
4.7
what's this?
Most Helpful Customer Reviews:
March 8, 2012 Great sounding solid system Amp
2 of 2 people found the following review helpful:
Review by
928 Nut from Dallas, Tx
Overall
  • 5.0
Durability
  • 5.0
Value
  • 5.0
Features
  • 5.0
Design
  • 5.0
Usability
  • 5.0
I have been into car audio since I was 16. I am 40 now, and still have the car audio bug. I just purhcased a brand new Ford Ecoboost F-150 and this is a great truck. But the stock stereo was pathetic. I wanted a decent system for under a grand. So, I bought a JL Audio clean sweep, replacement 6x8 door speakers (pioneer in the front, Alpine in the back doors), and installed two very old school amps that I had kept from back in the day. A Kicker ZR240 for the highs, and a ZED Autotek 7150 "Bass Thrust" for my two kicker 6.5" comp VR woofers (already owned these as well) under the rear seat (supercrew) in a custom ported box.



That put a 2 ohm stereo load on the kicker, and a 2 ohm mono load on the autotek which both are rated for. Everything sounded great, but then the Autotek stopped working (this amp is 20 years old after all).



So I broke down and bought this 4 channel Fosgate amp, and for the time being, I am running my whole system on it. The four door speakers are bridged to the front channels, high pass set at about 160hz, and the 6.5" kickers are on the rear channel, bridged 2 ohms mono, also crossed LP at 160hz. The birth sheet states like 664 total watts RMS at a 2 ohm load.



The sound difference with the new amp is night and day. I was blown away. The sound is extrememly crisp, clean, clear, and the lows are incredibly tight and with the bass boost dialed in, these little kicker 6.5's drop way down into the frequency range even though they won't win any SPL contests. I put them in a .6 cu ft ported box each, and they drop pretty low for 6.5's. I bought a single polk MM1040 DVC 10" woofer that I haven't built a box for yet, but that is next. I will add another 10 down the road.



This amp is plenty loud enough for my music tastes now. My ears and hearing are a lot more sensitive to loud music after running around with four 12's and two 15's back in college. The built in crossovers works well and allows a smooth transition from my door speakers on the front channel to the two litte subs under the seat on the rear channel. The treble boost sounds best about half way up on my set up anyway. The bass boost is set to about 6/10 to 7/10 of the way up for a good rich deep bass output. I just purchased the bass gain remote so that I can control the rear channel bass boost on my rear subs.



This little amp is worth every penny. Could not find it anywhere cheaper, and this is a brand new amp, not refurbished. I didn't think it would sound this much better, but it does.
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November 11, 2011 First experience with RF gear.
2 of 2 people found the following review helpful:
Review by
TROY from Lawton, OK
Overall
  • 5.0
Durability
  • 5.0
Value
  • 5.0
Features
  • 5.0
Design
  • 5.0
Usability
  • 5.0
This was my first time using rockford electronics in my car audio. Simply, this was by far the best decision I have made in car amps, period. Sound quality is awesome, features on this amp are fantastic, I have never had a better sound quality and range in any other amp like the P500-4 has given me. I get complimants all the time on how good my system sounds and what I am using, good speakers are essential but without the right amp, they are only so good. Rockford is on point and I only wish I had found this out years ago. You will be truly satisified with this amp, I know I am.
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March 20, 2013 Power and Sound Quality....that's you'll get
Review by
DarkSasukE971j from BAIE-MAHAULT, 0, Guadeloupe
Overall
  • 5.0
Durability
  • 5.0
Value
  • 5.0
Features
  • 5.0
Design
  • 5.0
Usability
  • 5.0
Sound quality is awesome, my speakers (JBL P660c and P6560c) sound so crisp and clean and very loud. my system is active and the highs frequencies are more accurate and dynamic. Medium is great too if u set nicely ur equalizer, specially higher medium. I dont use anymore bass, cause my JBL dont need to play under 80-100hz : i hav rockford P3D212 ^^

The gain fixed at 1/3 in this amp and is good for my ears.
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January 19, 2013 Awesome
Review by
Daryl from Enid, OK
Overall
  • 5.0
Durability
  • 5.0
Value
  • 4.0
Features
  • 5.0
Design
  • 5.0
Usability
  • 5.0
Rockford Fosegate one of the best products on the market, in my opinion. very clean power from this amp...makes my speakers sound so crisp and clean and very loud....
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June 8, 2011 AWESOME PRODUCT!!!! NIB AS DESCRIBED!!! AAA+++
Review by
decible2003 from Houston,TX
Overall
  • 5.0
Durability
  • 5.0
Value
  • 5.0
Features
  • 5.0
Design
  • 5.0
Usability
  • 5.0
I was very skeptical about buying electronics online. That being said, Sonic Electronix sent me the same amp. That I would have bought in the store.......NIB as described. This thing is running a set of 6 1/2" focal components (ie: also purchased from Sonic Electronix) as well as a pair of Focal 8" co-axials with power to spare......It is loud and clear.
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View All 6 Reviews for Rockford Fosgate P500-4
Amplifier Wiring Kits
Get the wires you need to properly install and power your car amp.
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Bass Remote Control
Control the volume level of your bass and amplifier from the front of the vehicle.
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Small Universal Remote Level Bass Control Small Universal Remote Level Bass Control
The Scosche RLC is a smaller universal bass remote that connects via RCA inputs.
$14.99
Speaker Wire
Improve the sound quality by delivering more power when replacing your factory wiring. High quality speaker will maximize your amplifier investment and system performance.
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NVX XWS1225 Speaker Wire NVX XWS1225 Speaker Wire
25 ft. of True 12 Gauge 100% Copper EnvyFlex Speaker Cable/Wire
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NVX XWS1250 Speaker Wire NVX XWS1250 Speaker Wire
50 ft. of True 12 Gauge 100% Copper EnvyFlex Speaker Cable/Wire
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Kicker XW1220 Speaker Wire Kicker XW1220 Speaker Wire
12 Gauge Wire - 20 ft. of Dual Twist Speaker Cable with Sleeves for a Clean Install
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StreetWires SCP1215BL - 12 AWG Speaker Wire StreetWires SCP1215BL - 12 AWG Speaker Wire
12 Gauge Wire - 15 ft. of Speaker Cable with Twisted Construction
$24.99
RCA Interconnects
You will need a good set of RCA interconnect cables to connect your amplifier to your head unit. Using high quality cables ensure the best sound possible by reducing unwanted noise interference, providing tight contacts, and utilizing the latest in cable technology.
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NVX XIV45 4-Channel RCA Audio Interconnect Cable NVX XIV45 4-Channel RCA Audio Interconnect Cable
5 Meters (16.4 ft.) 4-Channel RCA Audio Interconnect Cable with Dual Twisted Pair Hyper-Flex Technology
$23.99
NVX XIX45 X-Series RCA Interconnect Cable NVX XIX45 X-Series RCA Interconnect Cable
16.4 ft. of 4-Channel X-Series RCA Cable with Dual Twisted Pair Hyper-Flex Technology
$44.99
StreetWires ZN9 Series Interconnect Cable StreetWires ZN9 Series Interconnect Cable
16.4 ft. of 4-Channel RCA Cable with Rhodium-plated contacts and ZeroNoise construction for clear signal transfer!
$99.99
Capacitors
Capacitors store energy for the amplifier to use on demand, thereby assisting in the elimination of dimming lights during peak power surges during use.
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e2 ECAP1 by Scosche - Mid-Level 1 Farad e2 ECAP1 by Scosche - Mid-Level 1 Farad
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Installation, Tools & Accessories
With our professional install card, you can have your amp installed by a pro near you, or you can purchase tools and do the install yourself.
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StreetWires FB4 StreetWires FB4
4 AWG / 4 Gauge Firewall Bushing
$7.99
Kicker DB1448 (09DB1448) - Top of the Line! Kicker DB1448 (09DB1448) - Top of the Line!
Distribution Block with Two 1/0 or 4 AWG Inputs and Four 4 or 8 AWG Outputs
$29.95
Professional Installation for your Car Power Amplifier Professional Installation for your Car Power Amplifier
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Testing and Performance
Optimize your system's performance with testing tools such as SPL meters, bass test discs and more!
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Scosche SPL Meter SPL1000F Scosche SPL Meter SPL1000F
Handheld boomSTICK measures your SPL range from 60 to 135 dB
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AutoSound 2000 CD-104 AutoSound 2000 CD-104
The ultimate amplifier level setting disc used for evaluation of audio components
$12.99
AutoSound 2000 CD-102 AutoSound 2000 CD-102
High Frequency Test CD specifically designed for the set-up and evaluation of sound system imaging and placement.
$12.99
AutoSound 2000 CD-103 AutoSound 2000 CD-103
Audiophile reference series test disc for evaluation of all audio components.
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Main Product
  Product Price Add?
Rockford Fosgate P500-4 Rockford Fosgate P500-4 $239.00

Product Summary

Manufacturer: Rockford Fosgate
Model number: P500-4
UPC: 780687329907
Weight: 13.50 lbs
Internal SKU: p500-4
Internal product ID: 22583