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Rockford Fosgate Punch PBR300X4

300 Watts Punch Series Boosted Rail Compact 4-Channel Amplifier

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$179.99

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Rockford Fosgate RFK10I

• 10 Gauge Amplifier Installation Kit
• Includes RCA Interconnect Cables
• Made from 100% Pure Crystal-Oxygen Free Copper
• Includes Wire Termination Hardware
• CEA-2015 Compliant

Save 20% on an RF Amp Kit and get an Extended Warranty!

Get 20% off an RFK10 install kit and receive an additional 1-year warranty on your Rockford Fosgate amplifier when purchased together. Simply click the "Add Both to Cart" button. This offer cannot be combined with any other coupons or offers.

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Rockford Fosgate Punch PBR300X4

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Rockford Fosgate RFK10

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Rockford Fosgate Audio Store
Rockford Fosgate Punch PBR300X4

PBR300X4 - 300 Watt Amplifier with Boosted Rail Technology

To achieve higher efficiency with lower distortion, Rockford's BR topology combines, Cycle-by-Cycle, an indirectly coupled high/low voltage rail linear topology with a switched high/low voltage linear rail topology. This combination yields an unsurpassed power density (watts per cubic inch). In addition, this patented technology allows the chassis design to be much smaller than traditional sized amplifier - 1.53" x 4.25" x 6.75" - making this amp a great solution for smaller stealth installations, motorcycles and recreational vehicles. In fact, now, with the introduction of the Rockford Fosgate RFKHD9813, installing the PBR300X4 into select 1998 - 2013 Harley Davidson motorcycles has never been easier. With unparalleled technology, flexible installation options, and big power from such a small footprint Rockford Fosgate has ensured that everyone can put a little Punch in any system.




MEHSA³

MEHSA³ - Max Efficiency Heat Sink Application

MEHSA3 is a proprietary process that yields up to five times better heat transfer than traditional FET mounting techniques, using the exact same components. A multi-layer insulated metal substrate operating with minimal thermal resistance spreads heat both downward & outward to quickly dissipate heat from each device across the heatsink. This process allows Rockford Fosgate to squeeze more watts per cubic inch from every output device as well as provide consistent thermal stability. The higher power handling results in a 20% reduction in thermal impedance.


DSM - PBR300X1 Model Shown

DSM - Discrete Surface Mounted Components

An industry-leading manufacturing process, DSM utilizes high-speed robotics, high-quality 1% tight-tolerance parts and large board traces. The discrete components are laser etched to meet a particular value and a very low tolerance. This lower tolerance improves the efficiency of the circuit, decreases cross-talk from other discrete components and lowers operating temperature. These superior components are used by aerospace, automotive, and cellular manufacturers.








 

 

 

General Features:

  • Punch Series BR Full Range 4-Channel Car Amplifier
  • RMS Power Rating:
    • 4 ohms: 75 watts x 4 chan.
      This amplifier is only capable of operation at 4-Ohm
  • Features Rockford Fosgate's Class-BR Topology
  • CEA-2006 compliant amplifier
  • 2/4 channel input switch
  • Ultra compact chassis
  • MOSFET output stage
  • Boosted Rail amp technology
  • Convection cooling design
  • Extruded aluminum heat sink
  • Low level RCA input connection
  • High level speaker input connection
  • 12dB / Octave Butterworth crossover
  • Selectable High-Pass / Low-Pass Filter @ 80 Hz
  • Detachable Compression Terminals
  • LED power (blue) and protect (red) indicators
  • Variable 4-6 volt hi level DC offset voltage input turn-on control
  • Features MEHSA3 (Maximum Efficiency Heat Sink Application - gen. 3)
  • Perfect for smaller stealth installations
  • Great for motorcycles and recreational vehicles
  • Wiring w/ Mounting Plate for Harley-Davidson Motorcycles Available: Rockford Fosgate RFKHD9813
  • 16 Gauge speaker wire output terminals
  • 10 gauge OFC power and ground wiring is recommended for installation.
  • 1-year Manufacturer's Warranty


 

Amplifier Specifications:

  • Input sensitivity:
    • Low level: 150mV - 4V
    • High level: 400mV - 11V
  • Operating voltage: 9 - 16 VDC
  • Recommended fuse rating: 50 A x 1
    (not included)
  • Max. current draw (13.8V Sinewave): 40 A
  • Average current draw (13.8V Music): 20 A
  • Frequency response: 20 - 20,000 Hz, +/- 1 dB
  • Total harmonic distortion: <1.0%
  • Signal to Noise Ratio: ≥100 dB
  • CMRR: >55 dB @ 1 kHz
  • Damping Factor: >200
  • High-Pass: Selectable 80Hz @ 12dB/Octave
  • Low-Pass: Selectable 80Hz @ 12dB/Octave
  • CEA-2006 Power Rating: 75W x 4 @ 4Ω ≤1.0% THD+N
  • Weight: 3.038 lbs
  • Dimensions: 6.75"L x 4.25"W x 1.53"H


Check out the Rockford Fosgate Punch PBR500X1 Owner's Manual


Check out the Class-BR Amplifier Installation Advisory From Rockford Fosgate

Power Specifications - Full Range Channels

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 speakers or subwoofers 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.

75 watts x 4 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.
Punch BR (Rockford Fosgate)
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.

BR
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.
4
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.

300 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.
10 AWG
Minimum Impedance Unbridged
The lowest impedance the amplifier will handle when it is not bridged.
4 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.
<1.0%
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.
Yes
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.
No
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)
High-pass (HP)
Full (AP)
High-Pass Crossover Frequency
The high-pass crossover frequency can be a fixed crossover point or a variable crossover range. A variable high-pass crossover allows you to select a specific crossover point which allows frequencies above the set crossover point to pass, while making frequencies below 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.

Fixed 80 Hz
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.

Fixed 80 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/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.
No
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.
30A X 1 In-Line Fuse Recommended
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.
No
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
Sonic Certified Amplifier
Sonic Certified amplifiers have been tested by the experts at Sonic Electronix to meet or exceed the wattage ratings provided by the manufacturer. If this is marked as Yes, then you can trust the wattage ratings. If marked as No, then we have tested the amplifier and it did not meet the advertised wattage ratings. If marked as Not Tested, then the Sonic Electronix experts have not yet been able to test the amp.
Not Tested

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
51%
4 Star
34%
3 Star
6%
2 Star
3%
1 Star
6%

Average Attribution Rating

Durability
4.3
Value
4.6
Features
4.5
Design
4.8
Usability
4.7
Rocket 38

Mooresville nc

Overall
Durability
Value
Features
Design
Usability
Great Amp. Great for Motorcycles

September 10, 2013

Small. Compact. Easy installation. Great power. Not a lot of adjustments on amp.

53 of 88 found this helpful

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Randy

Cozad, NE

Overall
Durability
Value
Features
Design
Usability
Great Little Amp

June 18, 2013

Powerful little amp installed on a Harley Davidson Street Glide.

53 of 92 found this helpful

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Zee

Fort Lauderdale, Florida.

Overall
Durability
Value
Features
Design
Usability
Great little amp!

January 19, 2015

I got this for my husband for the holidays. It is small and compact and can be easily hidden within the vehicle. It can get a little warm but he has not expierenced any issues, if you are worried you can always mount it near/ with a cooling fan. He is very pleased with this little amp. It packs a punch.

48 of 85 found this helpful

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Berkeley Auto Sound and Security, LLC

Martinsburg, WV

Overall
Durability
Value
Features
Design
Usability
Great Amp!

September 11, 2013

I just finished installing one of these amps in an '89 Porshe Carrera...wow! I still am in disbelief how this tiny amp pushed 2 sets of JBL components.. This car screamed and my customer was extremely happy with his purchase. I have been installing for over 14 years professionally and still can't believe this little amp did what it did..10 gauge wire is recommended but I managed to install it with 8 gauge... I could see the amp running hot if the wire run is long using 10 gauge. For future purchasers, buy 8 gauge wire if your run is longer than 10 ft.

46 of 84 found this helpful

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Chris

Jacksonville, FL

Overall
Durability
Value
Features
Design
Usability
This little thing kicks!

April 22, 2014

I installed this into my motorcyle fairing pushing 4 - 51/4. What a difference. Now I can hear it over my loud pipes!

43 of 79 found this helpful

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Steve

Sycamore, IL

Overall
Durability
Value
Features
Design
Usability
Great little amp

November 19, 2014

This little amp in combination with a good set of speakers is well worth the money. I mounted it in my fairing of my motorcycle. It easily powers two six inch rounds up front, and two 6x9's in the bags. It sounds great without any distortion. Installation was simple and quick. I would definitely recommend this amp.

41 of 76 found this helpful

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da truth

chicag'il

Overall
Durability
Value
Features
Design
Usability
300.4

April 16, 2014

I recently purchased and had installed in my2010 chevy malibu. Pleasantly surprised by the output and clarity of this little baby. Small amp with huge sound quality level goin to my 6.25 kenwood door speakers and 6x9 kenwood rear speakers. Now I defintely have to upgrade to bigger amp and subs to get deeper bass

39 of 72 found this helpful

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Maynard

Detroit Lakes, Minnesota

Overall
Durability
Value
Features
Design
Usability
Nice little amp.

January 30, 2013

Amp has a really small footprint. The amp I have is putting out 87 watts per channel making for a total of 348 watts. I don't need the gain turned up past 3 in order to make my ears ring. I have it hooked up to two Pioneer 4x6 speakers and two Pioneer 6x9 speakers and it rocks them all day and all night.

I had my entire stereo professionally installed and I don't have any problems with it.

45 of 84 found this helpful

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jacob

Bay City, TX

Overall
Durability
Value
Features
Design
Usability
good while it lasted

March 1, 2013

The amp made my speakers (Prime6x8) sound like they were top of the line. i had this amp hooked up for about 14 days until all of a sudden no sound would come through my speakers anymore just a buzzing noise the amp would turn on but no sound all cables were fine.

42 of 79 found this helpful

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Christopher

Midlothian, VA

Overall
Durability
Value
Features
Design
Usability
Great little package

November 22, 2012

I was very unsure whether or not to get this amplifier based on the mixed reviews but I did anyway. It has now been 6 months and not a moments trouble. To tell you the truth the size and sound reminds me of the old punch 75 amps. Great sound from a small package. I would definitely not hesitate to purchase this again.

43 of 81 found this helpful

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mike

sulligent Alabama

Overall
Durability
Value
Features
Design
Usability
complete disappointment

April 21, 2012

My first Rockford amp and it lasted 30 minutes. Now all i get is a loud hiss. Boxed up now ready to ship back. Amp never did sound right and got VERY hot. I do not recommend this amp.

36 of 67 found this helpful

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Roberto

Merced, CA

Overall
Durability
Value
Features
Design
Usability
Excellent overall value

May 30, 2012

This amplifier is compact, packs a punch during musical peaks and sounds clean with minimal distortion.

35 of 66 found this helpful

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Robert

Houma, LA

Overall
Durability
Value
Features
Design
Usability
Good strong power

March 26, 2014

Good amp for bikes just can't turn it up all the way hurts my ears.
High distortion but that it due to the Harley deck that has .5thd where I'm used to like .001 THD. I am sure if Harley made a radio with low inputs it would be cleaner sound. All that said I would buy this amp again for any bike hi or low inputs as I always been fond of Fosgate

39 of 75 found this helpful

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Jim

Norristown, PA

Overall
Durability
Value
Features
Design
Usability
Mixed feelings

September 17, 2013

This is hands down a superb amp for the cost. I run four 6.5 kicker speakers on it. Never distorts, gets real loud. The only thing I hate is the inputs. They are inconvenient and it's easy to pull out. Keep this in mind when you purchase this amp. Also it tends to hog all the power from my sub when I turn it up. Might need a cap to fix this. Very satisfied with the output and functionality.

41 of 80 found this helpful

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Joe

Canada

Overall
Durability
Value
Features
Design
Usability
Great price great sound.

December 28, 2012

Easy install. I installed it on my Harley. Called the Fosgate tech support they were great every time.

18 of 35 found this helpful

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Cdietzjr

Lillington, NC

Overall
Durability
Value
Features
Design
Usability
Use in motorcycle Cairo g

September 10, 2013

I purchased this unit for use in an after market fairing for an HD Roadking to power 4 speakers and I am nothing but impressed with its push power. I will be installing 2 more speakers for the rear and have no doubt there will be no power issue

19 of 38 found this helpful

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Mking38

New Philadelphia, OH

Overall
Durability
Value
Features
Design
Usability
Never worked

August 15, 2013

I had originally purchased this amp to have a matching system for my car. I had the amp installed into my car and about two weeks later it went into protect mode and would not come out of it. So I had sent it back and got it replaced with my warranty. After receiving my new one in the mail I had immediately installed it into my car and I got no sound what so ever. It never worked right out of the box and it felt like it was on fire. I would not recommend this amp for anything. If you need a small amp for your bike or car system I would recommend you look somewhere else rather than this product.

40 of 80 found this helpful

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Robert

Canada

Overall
Durability
Value
Features
Design
Usability
great sound from this little puppy

July 22, 2013

Have it installed in my venza great power and crisp clear sound. Using infinity speakers teamed up with the fosgate amp

18 of 36 found this helpful

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p

OH

Overall
Durability
Value
Features
Design
Usability
great product

October 13, 2011

I bought this to replace my old amp and to hide it
powers my alpine r 6.5 speakers. Another great product from Fosgate.

20 of 40 found this helpful

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Leroy Avent

Ruther Glen, Va

Overall
Durability
Value
Features
Design
Usability
Great customer service

April 30, 2015

Purchased pnr300x4 great customer service and fast shipping highly recommended

11 of 23 found this helpful

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gary

Seattle, WA

Overall
Durability
Value
Features
Design
Usability
Big power in a little sizes

April 17, 2014

I would by this amp again it's very powerful and can run some woofers like a big amp

37 of 75 found this helpful

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fred

owensboro

Overall
Durability
Value
Features
Design
Usability
great

January 26, 2014

best for the money you wont ever get a better one for the cash

20 of 41 found this helpful

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Nate

BC, MI

Overall
Durability
Value
Features
Design
Usability
Works great.

October 7, 2011

This is a good little amp. Mine was rated at 84x4 RMS and fits very easily in tight spaces (a big plus for my install). Gets my T1 6.5s and my M28Bs pretty loud. GETS HOT, but has never cut out. Doesn't give you as much room for adjustment like a normal 4channel would but does the job nicely. I ran mine with a 360.2 to get the sound how I wanted.

19 of 39 found this helpful

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Jesse

Beaver, OH

Overall
Durability
Value
Features
Design
Usability
Very powerful for such a small amp!

March 13, 2015

This amp is a great product it is very power, i am pushing 4 Rockford Fosgate power 6.5 speakers and 4 precision power tweeters and 2 precision power loud tweeters with no problems! I would buy another in a heartbeat!

19 of 40 found this helpful

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Derek

Lee's Summit, MO

Overall
Durability
Value
Features
Design
Usability
Great amp

November 3, 2011

I finally broke down to upgrade the system in my 98 silverado. Got this, 2 T1S652, and then the T1 4x6's. Compared to my old system this thing screams! Not a ton of room for adjustment, but my head unit lets me get it to where i like it. Great price, talk to a rep to get the best deals possible, i saved a few bucks by buying everything together. The only negative is that this little thing gets hotter than a b******, everything else is great. Very easy to hook up. I only had a little knowleddge of car audio prior to this and had no problems.

21 of 44 found this helpful

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BAK32

DuQuoin, IL

Overall
Durability
Value
Features
Design
Usability
The PERFECT amp for your bike !!

April 28, 2014

I recently installed the RF PBR 300X4 amp, along with pair of RF M262 speakers, in the Dead Center fairing of my'02 Harley Road King. So far, the combination is exactly what I was looking for - loud and clear. Other reviews commented on the amp getting hot enough to shut down, but so far it has not been an issue. Hopefully it won't be an issue when it heats up later this summer. I made my own bracket out of aluminum flat stock to mount the amp. The PBR 300X4 was easy to hook up and the volume/tone combinations are endless. I visited several different websites and Sonic Electronix was a no brainer to buy from. Lowest prices and great technical help. A definite piece of advise is to direct wire to your source instead of using the RCA cables. The sound and volume are MUCH better. I have graded Overall and Durability at 4 only because I have only been using them for a couple weeks. Ride safe !!!!

25 of 53 found this helpful

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Jay

Milwaukee, Wisconsin

Overall
Durability
Value
Features
Design
Usability
good buy

February 28, 2014

Fast shipping, nice product, also was a good price, would buy again.

26 of 55 found this helpful

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phil

Salinas, CA

Overall
Durability
Value
Features
Design
Usability
Satisfied

November 14, 2013

As of now I am very satisfied with this amplifier. I placed it in the fairing of my motorcycle(Victory Cross Country) and gained a large amount of crystal clear sound. Definitely worth the money, IMO. Before I used the amp, it was hard to hear or understand the music at 60mph, not though.... I can hear perfect at 90+ with little distortion(wind will always be there). Love the 2 and 4 channel option, but even though its in my fairing wish it was a marine amp just in case.

14 of 31 found this helpful

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CML Decor and Design

Woodbridge, VA

Overall
Durability
Value
Features
Design
Usability
Amp

June 10, 2014

Easy to connect and powerfull sound for its small size. I have only had it for a month so I can't attest about its durability.

36 of 76 found this helpful

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hognutts

Madera, ca

Overall
Durability
Value
Features
Design
Usability
Does the job

February 21, 2014

I highly recommend this amp. i was using a 1000 watt lanzar mini Max and this is way better.

29 of 62 found this helpful

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Aaron

Xenia, OH

Overall
Durability
Value
Features
Design
Usability
simply amazing

May 17, 2012

Well worth the money I paid. HUGE POWER from a very small package.
Although, I don't recommend running in 2 channel mode as it clips at higher volume levels until it has a chance to warm up. Operating in 4 channel it provides tight, clean mid bass and piercing highs.

23 of 50 found this helpful

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Shane-O

Newark, CA

Overall
Durability
Value
Features
Design
Usability
This lil rocker realy pumps!!

January 27, 2014

I AM SIMPLY AMAZED!! This lil dynamo can really pump up the volume!! So I installed this in a 2012 Pathfinder and it fits neatly under the passenger seat with lots of air space around it. I hooked it up after the stock radio out to Rockford 6x9 T1-Power in the front doors and 6.5 in the rear doors. It really drives these speakers well. I am sold on these lil buggers. I read that adequate air flow is crucial. So keep that in mind. I'll probably put a set in my 2012 Sonata soon. (Bi-amped and pumped too by Rockford.) Oh and the ability to go straight in on hi-level speaker inputs really sold me too.

38 of 81 found this helpful

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Rocket38

Mooresville. Nc

Overall
Durability
Value
Features
Design
Usability
Works great. Very compact

September 3, 2013

Small in size. Great power. Easy installation. Great for Harley Davidson, it Fits under stock fairing with no problem.

16 of 37 found this helpful

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Joe

Allen Park, MI

Overall
Durability
Value
Features
Design
Usability
Dissapointed

April 5, 2012

Bought this product to have a totally stealth stereo install in my '09 Focus. After having 2 of these amps burn up on me I have to say I am quite dissapointed. I used a 3Sixty.2 sound processor to do all the work for me and when I was just tuning in the front speakers with the rears muted this amp rocked. As soon as I unmuted the rear speakers the amp cut out and just got a constant buzz from all the speakers. I am a former installer and have been installing for over 5 years. The amp was installed correctly but just did not perform.

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Ken

Palmdale, CA

Overall
Durability
Value
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good amp for harley.

September 7, 2012

so far so good, set filter on hi, only running two channels so far.

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Browse 4 questions and 18 answers
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Why did you choose this?
Sonic Electronix Store
needed something small that I could stealth install, powerful little amp however it gets extremely hot so i am not using it at its full potenial.
Terry L on Jan 18, 2015
Good product reputation best unit for my application
Terry D on Dec 22, 2014
Size, durability, and affordability...
Demar C on Jan 8, 2015
Based off of reviews and friends
Martin C on Dec 18, 2014
The specs on this amp say that 10 gauge is the maximum input size, but I have been reading that for 300W, 8 gauge should be used as a minimum. Even your 10 gauge wiring kits are only recommended up to 200W for the kicker brand (only 100W for the other one). Suggestions?
Rob C on Nov 27, 2014
Best Answer: This thing is going to run ridiculously hot no matter what you do. But to answer your question, the terminal block will only fit a 10 gauge wire, so what I've done is made that cable as short as possible. In my setup I have a 4 gauge cable running from the firewall to a splitter fuse box and mounted the splitter within a foot of the amp which makes the stretch pretty short. I use the other terminal to power my sub amp with an 8 gauge. Just use high quality braided 10 gauge cabling and you'll be fine.
Reply · Report · Chase W on Nov 28, 2014
· Add Answer · I Have This Question Too (4)
Do this unit have variable crossover ?
Carlton M on May 27, 2015
Best Answer: I have not had to deal with that part of the system, but it does list this in the specs: 12dB / Octave Butterworth crossove
Selectable High-Pass / Low-Pass Filter @ 80 Hz. Other than that, it works great - very happy.
Reply · Report · Paul H on May 28, 2015
· Add Answer · I Have This Question Too (0)
would this work to put in a 49 cc moped?
matthup on Jun 3, 2015
Best Answer: As long as you have the alternator/battery power to handle running the amp it would work just fine. These amps are made for motorcycles and high noise installations. This amp packs a lot of power for its size. It really is tiny.
Reply · Report · Bret F on Jun 3, 2015
· Add Answer · I Have This Question Too (0)

Product Summary

Manufacturer

Model Number

PBR300X4

UPC

780687333102

Weight

2.50lbs

Internal SKU

pbr300x4

Internal Product ID

34758

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 PBR300X4