Expert Service 1-877-289-7664 [Hours]

Boom. SUBTEMBER is here!

Rockford Fosgate Punch P500-1BD

500W Class-BD Monoblock Amplifier

Discontinued
|

Good news and a little bad...

This item has been discontinued

But you may be interested in the newest model that's available.

p500x1bd thumbnail

Rockford Fosgate P500X1BD

OUR PRICE: $229.95

View item

Get FAST answers from customers ASK a Question See questions answers

Bundled Savings with this Product

=

25% off a 4 Gauge Amp Kit with Purchase

You will need an amp kit to install your amp, and the Belva BAK42 is the perfect kit for this amp. For a limited time, when you click "Add Both to Cart", you'll receive 25% off the amp kit with the purchase of select amplifiers.

7.50

19556

294

Rockford Fosgate Punch P500-1BD

$229.99

+

25% OFF

Belva BAK42BK (Black)

$29.99

Special Price $22.49 ($29.99 if purchased separately)

Belva BAK42BK (Black)

• Complete 4 Gauge 2-Channel Amplifier Installation Kit
• Designed Specifically For Car Audio Systems Up to 1000W RMS
• Premium Power and Ground Wire Provides Optimal Power Transfer

(Offer 1 of 1)

Combined Total Price

$252.48

You Save $7.50

  • Punch Series Monoblock Class BD Car Amplifier
  • RMS Power Rating:
    • 4 ohms: 200 watts x 1 chan.
    • 2 ohms: 400 watts x 1 chan.
    • 1 ohm: 500 watts x 1 chan.
  • 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 or 0-12 dB bass boost at 12 kHz depending on crossover selection)
  • On-board differential inputs eliminates noise picked up by the signal cable
  • Mono channel operation
  • RCA Pass-thru outputs
  • 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 impedance.
  • MEHSA3 reduces MOSFET temperatures, lowers distortion, and increases durability
  • Cast aluminum heatsink evenly distributes excess heat across entire amplifier heatsink
  • Nickel-plated RCA level inputs
  • Nickel-plated screw terminals
  • Variable low-pass filter (35-250 Hz, 12 dB/octave)
  • Selectable infrasonic filter (28 Hz, 12dB/octave)
  • CEA-2006 compliant amplifier
  • Frequency response: 20-250 Hz
  • Dimensions: 10-1/4"L x 7-5/8"W x 2-1/4"H
  • 4-gauge power and ground leads recommended. Contact us for information regarding a discount on a select amplifier kit when purchased together.
  • 1-year SonicElectronix.com warranty

Product History:

Rockford Fosgate P500X1BD thumbnail
(newest, current model)
Rockford Fosgate P500-1BD thumbnail
(previous model, replaced by Rockford Fosgate P500X1BD)

Power Specifications - Subwoofer Channel

RMS Power @ 4 ohms
The RMS power rating is the measure of continuous power that an amplifier can output, or a speaker can handle. It is the most accurate depiction of real, continuous power that the industry has so far. If the final impedance of your speaker(s) or subwoofer(s) equals 4 ohms, this is how much power this amplifier will supply at that ohm level. The higher the RMS wattage, the more clean and loud your music will sound. The 5th channel on these particular amplifiers are usually dedicated for driving subwoofers.
200 watts x 1 channels
RMS Power @ 2 ohms
The RMS power rating is the measure of continuous power that an amplifier can output, or a speaker can handle. It is the most accurate depiction of real, continuous power that the industry has so far. If the final impedance of your speaker(s) or subwoofer(s) equals 2 ohms, this is how much power this amplifier will supply at that ohm level. The higher the RMS wattage, the more clean and loud your music will sound. The 5th channel on these particular amplifiers are usually dedicated for driving subwoofers.
400 watts x 1 channels
RMS Power @ 1 ohm
The RMS power rating is the measure of continuous power that an amplifier can output, or a speaker can handle. It is the most accurate depiction of real, continuous power that the industry has so far. If the final impedance of your speaker(s) or subwoofer(s) equals 1 ohms, this is how much power this amplifier will supply at that ohm level. The higher the RMS wattage, the more clean and loud your music will sound. The 5th channel on these particular amplifiers are usually dedicated for driving subwoofers.
500 watts x 1 channels

Amplifier Specifications

Amplifier Series
This designates the series of the amplifier. Many amps are available in a litany of different wattage and channel configurations, but maintain consistent features throughout the product line.
Amplifier Class

An amplifier increases the power of the signal being fed to it by taking energy from its power supply and matching the signal but increasing its amplitude. Amplifiers use many different methods for converting these electrical signals and have been categorized into classes.

Class A/B: Greater than 50% of the input signal is amplified while the other percentage is “off”. These amplifiers have a small amount of current flowing through the output transistors all the time which almost eliminates crossover distortion. Class A/B has great sound quality but is not as efficient as class D. These amps are most commonly used to drive speakers.

Class D: Also known as switching amplifiers, class D amps have output transistors that are completely turned “on” or “off”. This means that when the transistors are on, there is almost no voltage across them but when they are off there is significant voltage but no current flowing through it which makes these amplifiers very efficient at the cost of sound quality. These amps are most commonly used to drive subwoofers.

Other Classes: You may see classes such as GH, bD, X, FD, etc. by some manufactures. These amplifiers tend to be either class A/B, D or a hybrid of the two but with improvements to their designs that can make them more efficient or offer better sound quality.

BD
Number of Channels
Each channel on an amplifier will power one speaker using a positive and negative cable. There are various types of amplifiers, each designed to power a certain number of speakers. Monoblock amplifiers, also known as single channel, are designed to power one or more subwoofers. These amplifiers often have very high power ratings. On the other hand, multi-channel amplifiers power multiple speakers, usually at lower power ratings. 2-Channel and 4-Channel amplifiers can power car speakers or low powered subwoofers. Occasionally you might see a 5 or 6-channel amplifier that can power speakers and subwoofers at the same time. The most common setup is a monoblock amp to run subwoofers and a 4-channel amp to run door speakers. Check out our Knowledge Base for more information.
1 - Mono
Total RMS Power Output
Total RMS power is measured by multiplying RMS power per channel by the number of channels, and is calculated at the lowest level of operating impedance.

RMS power is the amount of continuous power, measured in watts, that an amplifier produces is called RMS power. The higher the RMS figure, the louder and cleaner your music sounds.

The RMS output figure is much more accurate than the peak rating when comparing products.

500 watts
Maximum Input Gauge Size
This is the largest gauge wire that will fit into the power and ground terminals of this device. The lower the gauge number, the thicker the wire is. For example, a 4 gauge wire is thicker than an 8 gauge wire and thus has higher current carrying capacity. Always do your best to get this size wire to reduce the risk of damage to your components.
4 AWG
Minimum Impedance Unbridged
The lowest impedance the amplifier will handle when it is not bridged.
1 ohms
Minimum Impedance Bridged
The lowest impedance the amplifier will handle when it is bridged.
Not Bridgeable
THD at Rated RMS Power
The amount of change in harmonic content of the signal as it is amplified. A lower figure indicates less change and a more accurate amp. THD below 0.10% is inaudible.
1%
Speaker Level Inputs
Speaker level inputs are commonly referred to as high-level inputs and vice versa. This input type allows you to get your audio signal directly from the speaker wire in your vehicle, instead of using RCA cables. The advantage of this is factory integration, as most stock radios do not have RCA outputs to run amplifiers.
No
Preamp Outputs
Many amplifiers are equipped with RCA preamp outputs which pass the original music signal from the source to additional amplifiers. This is known as daisy chaining because the source connects to the first amp, and the first amp connects to the second amp, etc. The advantage to daisy chaining is you only need one 2-channel RCA cable to transfer the signal from the head-unit to the amplifier, and then one additional cable for each amp being daisy chained.
1 pair
Built-in Crossover

A crossover is a type of filtering system that permits only certain frequencies to play. A Low-Pass (LP) crossover allows only frequencies below its setting to get through which is good in the case of some subwoofers. A High-Pass(HP) filter allows frequencies above its setting to pass through, this is normally used on speakers.

When a crossover is set to FULL it means no filtering is added and the full frequency spectrum is allowed through the amplifier. Filtering is important because feeding a speaker frequencies it cannot reproduce effectively creates distortion.

Low-pass (LP)
Low-Pass Crossover Frequency
The low-pass crossover frequency is typically used for subwoofers. It can be a fixed crossover point or a variable crossover range. A variable low-pass crossover allows you to select a specific crossover point which allows frequencies below the set crossover point to pass, while making frequencies above the set point gently or harshly roll-off, depending on the steepness of the slope.

The steepness of the roll-off slope is measured in dB/octave and refers to the rate of attenuation (lowering of volume) outside their pass bands.

35 - 250 Hz
Signal-to-Noise Ratio
This spec compares the strength of the signal to the level of background noise. A higher value indicates less background noise.
100 dB
Bass Boost
The objective of the bass boost is to get more kick out of your subwoofer. It is a circuit that emphasizes the lower frequencies at a given point. The bass boost should always be set first before setting the gain. This feature is known for destroying subwoofers and is commonly used incorrectly, so be cautious.
0 - 18 dB
Bass/Gain Remote
If the amp comes with a bass/gain remote you will be able to control the level of your bass from your dashboard. Typically bass remotes also include a 16-20 ft. wire for installation.
Optional (Accessory required and sold separately)
Fan Cooled
A great feature to have if an amp generates a large amount of heat. Cooling fans can help regulate the temperature to prevent the amp from overheating (burning).
No
Fuse Rating
The amperage and the number of fuse(s) an amp requires.
100A x 1 
CEA-2006 Compliant
Amplifiers that have been tested to meet specific standards. When a car amplifier meets these standards, you can be sure that it will be able to produce the amount of power specified by the official CEA-2006 rating. Usually, these rating consist of the following items:
  • RMS Power
  • Signal-to-Noise Ratio

This rating applies to both external car amplifiers, as well as the amplifiers inside of in-dash stereos.

Yes
Strappable
Some amplifiers can be "strapped" together in order to increase the output of a single audio channel. These amplifiers feature RCA preamp outputs, allowing you to pass the signal directly from one amp to the other to ensure consistency.

Specials with this Item

Promotions
Promotions we have offer More Ways to Shop for items that are on clearance, last chance, special offer and sales, Made in America, and more!

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Sonic Electronix

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
90%
4 Star
10%
3 Star
0%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
5.0
Value
4.9
Features
4.6
Design
4.5
Usability
4.9

Nathan

Columbus, OH

Overall
Durability
Value
Features
Design
Usability

Very Satisfied

September 10, 2013

i have had this item for about six months now and have never had a problem with it. i am running it with 2 Rockford 12s in the Rockford box that was made for them. i also run it with a cap on the side which i was erie about. but i will say the set up was very straight forward and easy to tune! the amp is a very strong and clear power maker and i believe it is one of the best on the market!

0 of 0 found this helpful

Help our customers find the most helpful reviews

john

harrison township, MI

Overall
Durability
Value
Features
Design
Usability

Doesn't get any better

August 12, 2013

This amp is rated 500rms @ 1 ohm. my birth sheet said it was actually 697 @ 1 ohm and 2032 watts peak. No other 500 watt amp can even come close to that with the great price from Sonic Electronix

0 of 0 found this helpful

Help our customers find the most helpful reviews

Brandon

State College, PA

Overall
Durability
Value
Features
Design
Usability

Wow

June 26, 2012

All I can say is wow Rockford has changed these Punch series up. They are so much smaller and produce tons of power 454 watts rms at 2ohms and 700 watts rms at 1ohm on my birthsheet. Defiantly worth the money.

0 of 0 found this helpful

Help our customers find the most helpful reviews

RockFos

AL

Overall
Durability
Value
Features
Design
Usability

Good Powerful Sub

January 19, 2011

I have this powering 2 Boston Acoustic G210 subs wired in parallel (2 ohms) Spec sheet says at least 450W. Amp is built solid and has LPF and bass boost adjustments. Runs cool and sounds great without letting up. Wired it up with a 4-gauge let. Not quite as nice as the Power Series but very good.

0 of 0 found this helpful

Help our customers find the most helpful reviews

Scott

Herndon, VA

Overall
Durability
Value
Features
Design
Usability

Nothing but the best

November 3, 2010

I bought this amp because of the price. It was half of what any retailer wanted for the same product. The customer service was even better. I even bought subwoofers too as a result of the first experience. Nothing but excellent service and quality in both transactions. I highly reccomend Sonic Electronix.com to anyone looking for electronic equipment.

0 of 0 found this helpful

Help our customers find the most helpful reviews

Vlover

canton, oh

Overall
Durability
Value
Features
Design
Usability

Good clean amp

September 21, 2010

RF has very solid amp designs. No issues what so ever. I think RF was one of the last car audio companies to send manufacturing overseas which I thought was kind of sad because they were one of the few native made amps. I've owned high end Orion, and a bunch of copy cats Power Acoustik, Clarion, Kenwood, etc and you do get what you pay for.

0 of 0 found this helpful

Help our customers find the most helpful reviews

josh

Brooklet ,Georgia

Overall
Durability
Value
Features
Design
Usability

Rockford Fosgate Amp P500-1BD

August 13, 2010

I have had this amp running 2 PS3 10" Subs flawlessly for 6 months now. Extremely pleased with it's performance and the distortion is minimal if even audible. I would recommend this product to anyone!

0 of 0 found this helpful

Help our customers find the most helpful reviews

Michael

Pittsburgh, PA

Overall
Durability
Value
Features
Design
Usability

Awesome amp, delivers more than 500 watts rms!

February 17, 2012

Helped a friend install this in his car paired with 2 12" P2's and damn does his car slam now! Birth sheet was well over 500 rms at 576 rms at 2-ohms which was very impressive! Rockford all the way!

0 of 2 found this helpful

Help our customers find the most helpful reviews

dacas

memphis tn 3818

Overall
Durability
Value
Features
Design
Usability

punch 500-1bd

August 31, 2011

i have this amp on 2 12l7s and every one thinks i have 2 15s or 3 12s at first it was runing at 2 ohms on 2 jl wov2 15s but it puts out alot more pwer at 1 ohm i run it with the gain all the way up for a year and it never kicks off but it gets warm but not hot i think its under rated by a few hundred watts

0 of 2 found this helpful

Help our customers find the most helpful reviews

Thumper

Washington, DC

Overall
Durability
Value
Features
Design
Usability

Two P500-1bd and two 12W7

February 5, 2011

I have two of these amps pushing two Rockford Fosgate T1D212 in a large ported box, wired down to 1 ohm; one sub per amp..IT'S STUPID LOUD! 142.2 db legal on a TL...

0 of 2 found this helpful

Help our customers find the most helpful reviews

Accessory Tools and Products

Accessories added

NVX XKIT42 100% OFC True 4 Gauge Wiring Kit with RCA Cables and Speaker Wire

The reviews speak for themselves, this is awesome wire with everything you need!

Your Price $69.99

Rockford Fosgate RFK4X 4 Gauge Amp Kit

Get a matching Rockford Fosgate wiring kit for your new Rockford amplifier!

Your Price $99.99

NVX XBG3PK 1/0 Gauge OFC Big 3 Upgrade Kit

Comes with everything you need to upgrade your power and ground wire.

Your Price $59.99

Kicker Big 3 Package 1/0 Gauge Big 3 Upgrade Kit

Get all you need including wire cutters to upgrade your power and ground wire.

Your Price $149.99

Belva BBG3KT CCA 1/0 Gauge Big Three Kit

Features everything needed to upgrade factory power and ground wire.

Your Price $39.99

JL Audio HD-RLC

Remote Level Control for Select JL Audio Amplifiers

Your Price $29.99

StreetWires FB4

4 AWG / 4 Gauge Firewall Bushing

Your Price $6.95

NVX XDBU4 - Top of the Line!

Distribution Block with Two 1/0 or 4 AWG Inputs and Four 4 or 8 AWG Outputs

Your Price $17.99

Professional Installation for your Car Power Amplifier

Covers labor charges through our professional installer network.

Your Price $89.99

Kicker KI24 K-Series RCA Audio Interconnect Cable

4 Meters (13 ft.) 2-Channel K-Series RCA Audio Interconnect Cable

Your Price $16.95

NVX XIV25 V-Series 2-Channel RCA Cable

16.4 ft of V-Series 2-Channel RCA Audio Premium Interconnect Cable with Dual Twisted Pair Hyper-Flex Technology

Your Price $11.99

NVX XWS1225 12 AWG Speaker Wire

25 ft. of True 12 Gauge 100% Copper EnvyFlex Speaker Cable/Wire

Your Price $39.99

NVX XWS1625 16 AWG Speaker Wire

25 ft. of True 16 Gauge 100% Copper EnvyFlex Speaker Cable/Wire

Your Price $13.99

Belva BBSW127 12 AWG Speaker Wire

12 Gauge 7 Meter (23 Ft) Speaker Wire (CCA)

Your Price $14.99

Belva BBSW167 16 AWG Speaker Wire

16 Gauge 7 Meter (23 Ft) Speaker Wire (CCA)

Your Price $12.99

The Install Bay IB-CAP1F

True 1.0 Farad Car Audio Capacitor for up to 1000W Max

Your Price $37.99

e2 ECAP1 by Scosche - Mid-Level 1 Farad

Digital 1.0 Farad Car Audio Capacitor for up to 1000W Max

Your Price $49.99

Scosche SPL Meter SPL1000F

Handheld boomSTICK measures your SPL range from 60 to 135 dB

Your Price $21.99

AutoSound 2000 CD-102

High Frequency Test CD specifically designed for the set-up and evaluation of sound system imaging and placement.

Your Price $11.99

XIX2025 Strapping RCA

0.25 Meter (0.86 ft) Hyper-Flex RCA cable w/ Serpentine-Cut Nickel Plated Connectors

Your Price $12.99

Hide answersShow all answers | Sort by
No questions have been asked about this item. Be the first!

Product Summary

Manufacturer

Model Number

P500-1BD

UPC

780687328429

Weight

9.00lbs

Internal SKU

09-p500-1bd

Internal Product ID

19556

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Rockford Fosgate Punch P500-1BD