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Rockford Fosgate Prime R150-2

2-channel car amplifier — 50 watts RMS x 2

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Item# 575R1502
 

Review Summary

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Original price $129.99
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Our take on the Rockford Fosgate Prime R150-2

by Buck Pomerantz
Rockford Fosgate

My system has plenty of power. Who needs an amp?

You might think you don't need an amp because you have a 400-watt system in your car, or because your new stereo puts out 50 watts a channel. But those are peak wattage ratings, which may boil down to 15 or 20 watts per channel, using the more realistic RMS rating. An amp sends your speakers the power they need to deliver your music with clarity and impact, whether you're using factory speakers or high-performance components. And low-frequency reproduction requires lots of power, so an amp is an absolute must if you're adding a sub to your system.

Now you can get Rockford Fosgate performance at value prices. Prime Series amplifiers bring out your music's subtle details as they drive your speakers with the clean power you need to overcome road noise and fill your car with sound.

Rockford Fosgate designed Prime amps to deliver Power Output Without Excessive Regulation (POWER), which means they'll respond quickly to the peak demands that you may throw at your system. Your driver's seat will become your favorite place for listening when you add the clarity and impact of a Rockford Fosgate amp.

The R150-2 2-channel amp puts out 50 watts RMS per channel to your speaker system, or you can bridge it to supply 150 watts RMS to a sub. High- and low-pass filters and Rockford Fosgate's famous Punch bass boost let you tune your speakers for maximum performance.

Highlights:

  • 2-channel car amplifier
  • 50 watts RMS x 2 at 4 ohms (75 watts RMS x 2 at 2 ohms)
  • 150 watts RMS x 1 bridged output at 4 ohms (4-ohm stable in bridged mode)
  • CEA-2006 compliant
  • high-pass filter (80 Hz, 12 dB/octave)
  • variable low-pass filter (50-250 Hz, 12 dB/octave)
  • variable bass boost (0-12 dB at 45 Hz)
  • Class-AB amplifier design
  • MOSFET power and output stages
  • frequency response: 20-20K Hz
  • preamp inputs and outputs
  • 10-gauge power and ground leads recommended — wiring and hardware not included with amplifier
  • fuse rating: 20A x 1
  • 7-3/4"W x 2-1/2"H x 12-1/8"D
  • warranty: 1 year
  • Our 60-day money-back guarantee
 

Hands-on research from the Crutchfield Labs (what are the Labs?)

Features and Specs
Performance
RMS Power Output (Watts x Channels)
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50 x 2
Peak Power Output (Watts x Channels)
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N/A
Power at 2 Ohms (Watts x Channels)
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75 x 2
Bridged Power (Watts x Channels)
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150 x 1
Minimum Impedance Bridged
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4
Minimum Impedance Unbridged
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2
Best Frequency Response
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20-20k Hz
THD at Rated RMS Power
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1%
Signal to Noise Ratio
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70 dB
Input Voltage
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14.4v
Features
Amplifier Class
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AB
Low-Pass Crossover Frequency
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50-250Hz
Low-Pass Slope (dB/octave)
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12dB/octave Butterworth
High-Pass Crossover Frequency
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80Hz
High-Pass Slope (dB/octave)
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12dB/octave Butterworth
Bass Boost
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0-12dB
Bass Boost Frequency
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45Hz
Fan Cooled
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No
Fuse Rating
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20
Speaker Level Inputs
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No
Preamp Outputs
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1 pair
Width (inches)
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7-3/4
Height (inches)
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2-1/2
Depth (inches)
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12-1/8
Parts Warranty
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1 Year
Labor Warranty
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1 Year
Product Research
What's in the box?

Download owner's manual

  • Two-channel amplifier with 20-amp fuse installed in chassis
  • Additional 20-amp fuse
  • 4 Mounting screws
  • 4 Flat washers
  • Installation/Operation Manual (Eng/Spa/Fre)
  • Amplifier Verification Certificate

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Features
Controls
Connections

Features

Overview: The Rockford Fosgate R150-2 Prime 150 watt 2-channel amplifier is designed to power a set of full-range or component speakers. The amplifier can also be bridged to power a single subwoofer.

CEA 2006 Compliant: The Rockford Fosgate R150-2 Prime's power ratings are measured according to the strict standards dictated by the Consumer Electronics Association (CEA). These standards allow you to accurately compare the rated power output of all CEA 2006-compliant amplifiers, even if they come from different brands. Manufacturers who adhere to the standards can display the CEA 2006 logo on their products and packaging.

  • Two-Channel (4-ohm): 50 watts RMS x 2-channel in 4-ohm @ 20-20,000Hz with 1% THD
  • Two-Channel (2-ohm): 75 watts RMS x 2-channel in 4-ohm @ 20-20,000Hz with 1% THD
  • Bridged (4-ohm): 150 watts RMS x 1-channel in 4-ohm

MOSFET Power: The Rockford R150-2 is equipped with a MOSFET power supply and output stage for good sound, efficiency and dependability.

LED Indicators: The Rockford Fosgate amplifier is equipped with two side-mounted LED indicators.

  • Power LED: This LED illuminates green when the unit is turned on.
  • Protect LED: This LED illuminates red if a short circuit or too low of an impedance is detected at the speaker connections. The amplifier will automatically shut don if this occurs.

Mounting: The amplifier can be mounted vertically or horizontally using the supplied mounting screws. The amplifier should never be mounted upside down or in an engine compartment (this will void your warranty).

Controls

Gain Control: The amplifier's gain control is preset to match the output of most source units. The gain control can be adjusted from 150mV to 8V.

Crossovers: The amplifier features a Crossover Switch which allows you to select Full-Range, High-Pass, or Low-Pass.

  • Full-Range: The full-range setting allows all frequencies (20-20kHz) to pass through the amplifier from your connected headunit to your connected speakers.
  • High-Pass: The high-pass setting is fixed and allows only frequencies above 80Hz to pass through the amplifier to your speakers.
  • Low-Pass: The low-pas setting is variable and allows only frequencies below 50-250Hz to pass through the amplifier to your speakers.

Punch Bass: This is a Punch bass control on the amplifier that is adjustable up to 12dB at a fixed 45Hz.

Connections

Power Terminals: The power and ground terminals are nickel-plated screw terminals and will accommodate up to 4 AWG power/ground wire (up to 1/2" spade or ring-style connector).

Remote Turn-On Terminal: The remote turn-on terminal is a nickel-plated screw terminal that will accommodate up to an 8 AWG wire (up 3/8" spade or ring-style connector). This terminal is used to remotely turn-on and turn-off the amplifier when +12V DC is applied, when connected to your headunit's remote turn-on lead. .

Speaker Terminals: The four speaker terminals (left +/- and right +/-) are heavy duty, nickel-plated screw-terminals what will accommodate up to 8 AWG speaker wire (up to 3/8" spade or ring-style connectors).

RCA Input Jacks: The industry standard RCA jacks provide an easy connection for signal level input. They are nickel-plated to resist signal degradation caused by corrosion.

RCA Output Jacks: This pair of RCA pass-thru jacks provide a convenient source for daisy-chaining an additional amplifier without running an extra set of RCA cable from the front of your vehicle to the rear amplifier location. They are nickel-plated to resist signal degradation caused by corrosion.

Fuse: The amplifier is equipped with one installed 20-amp ATC fuse. The amplifier also comes supplied with a spare 20-amp fuse.

 
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Rockford Fosgate Prime R150-2 Reviews

Average Customer Review:

13 people say:

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Filter by rating:
5 out of 5

Money Worth

Written By H, Atlanta,GA on Wednesday, July 27, 2011
Crutchfield Customer Review (What's this?)
 
Great 300 watt amp that is bridgeable. It has the different modes such as high pass, low pass and all pass allowing you to do different things with it. Also the is an adjustable gain and cut off frequency that allows you to tune your sub woofer just how you like it. The first one i got did not work, however crutchfield rush me a second one and it worked perfectly. Also there is a punch bass dial which allows the gain to be turned up extra at the 85HZ mark allowing that hard hitting bass frequency come out even more.
Was this review helpful?    Yes | No
 
5 out of 5

Best amp since the old RF Punch amps

Written By Evil, Midland, MI on Wednesday, November 17, 2010
 
I picked this amp up and it has enough power to drive 2 10" rockfords loudly, and without distortion. I would have payed double for this amp after hearing it, I have been competing in car audio since the early 90's and bang for your buck to sound good and loud without getting tickets this amp is by far one of the best I have owned.
Was this review helpful?    Yes | No
 
5 out of 5

Way too much powe for my setup!

Written By Ken, Nj on Saturday, November 06, 2010
Crutchfield Customer Review (What's this?)
 
This amp is a great way to have your subs moving some air. I only have 1 10inch
sealed box so no need for me to put up the gain all the way up. I have it half
away and it does it's job. Not as fancy looking as some of the better RF amps
but the subtle black fitting underneath my driver's side door makes it look
almost factory. Haven't found anything wrong with it. Great amp!
1 out of 1 people found this helpful
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5 out of 5

Nice amp and versatile

Written By Dustin, Camp Lester on Sunday, September 26, 2010
Crutchfield Customer Review (What's this?)
 
I bought this bad boy over a year ago to power up my 12" Infintiy sub. This amp does the
job without the gain even turned up past halfway. It provides enough power and never
runs hot.

I am now going to use it to power up some 6X9's in the near future and then a couple of
8" subs later. I am glad I bought it.
Was this review helpful?    Yes | No
 
5 out of 5

Great Amp!!

Written By Michael, Ohio on Sunday, December 27, 2009
Crutchfield Customer Review (What's this?)
 
I have this amp paired with a rockford 10" p1 sub and it has tons of power. The
paper in the box said it was rated at 181 watts rms! Awesome! The connectors
were in logical places. I have it connected to a Sony head unit with a sub out
so i left the filter on the amp on all pass for better control on the go from
the head unit. My sub sounds great with this amp powering it!! Thanks again
Crutchfield =]
2 out of 2 people found this helpful
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5 out of 5

Simply Amazing

Written By Alex, Ft. Worth, Texas on Sunday, November 01, 2009
 
I have this running 75 watts to my Infinity Kappa 6x9's in my 1997 accord, and wow, it's amazing. The quality is amazing, the increase of bass is outstanding, and this amp doesn't seem to overheat at all. I've never wired an amp before, and this is dirt easy to do. The only complaint, is well my fault. I wish my head unit had 2 pre-amp outputs insted of one so I could get the 4ch rockford insted. But, for the price, you can't go wrong. This amp is A+
1 out of 1 people found this helpful
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5 out of 5

Smiles all the way

Written By Eric, San Mateo, CA on Friday, September 25, 2009
Crutchfield Customer Review (What's this?)
 
Got this wired into my Astro Van. Placed it under the front seat after removing the silly drawer there. I'll miss the storage, but the sound benies are well worth it. This amp rocks for the price. Coupled with the recommended cabling kit and installation was fairly painless. Highly recommended.
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5 out of 5

Good

Written By Anonymous, PA on Tuesday, September 01, 2009
Crutchfield Customer Review (What's this?)
 
I bought this amp to power a pair of infinity speakers. It provides good clean, distortion free sound. So far I have used it only a couple of days, but I am satisfied with the sound, price and build quality
2 out of 2 people found this helpful
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5 out of 5

Rockford Fosgate Prime R150-2

Written By Zack, Lancaster, PA on Friday, August 14, 2009
Crutchfield Customer Review (What's this?)
 
I bought this amp to run one 8 inch rockford fosgate subwoofer, 150 watts at 4 four ohms, bridged. It sounds amazing! I couldn't have asked for anything better. It was the way to go at this price over a class D amp putting out the same power for $150 and
up!

Great power, great amp, period!
4 out of 4 people found this helpful
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5 out of 5

Nice amp ... good tweaking

Written By Stephen, Portland, OR on Monday, July 20, 2009
Crutchfield Customer Review (What's this?)
 
I have this amp connected to the subwoofer output of a Dual XHD7714 head unit, powering an MTX 4510 10" sub in a slim SubZero box, in the back of a 1992 Toyota Shortbed Pickup truck.

This is an excellent amp with good crossover, level and "punch" controls. It provides plenty of power for my single 10" MTX sub. As with most Rockford products, the amp is a work of art. It's beautifully designed, with all connections in logical places. It's small enough to fit in some tight spaces. It does not seem to run hot at all.
1 out of 1 people found this helpful
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5 out of 5

Rockford Fosgate Prime R150-2

Written By Bryan, Rancho Cucamonga, CA on Sunday, July 19, 2009
Crutchfield Customer Review (What's this?)
 
I paired this amp with a single, 10" Rockford Fosgate Prime R1S410 sub woofer in a sealed box and it works great. The amp provides adequate power to the sub and is fairly small which makes it easy to mount.

The only con in my opinion is the screws where you connect the wires (power, ground, remote, and speakers). I've had RF amps where you can stick the wires in directly without having to use wire connectors (specifically for the thick battery/ground wires).

I would recommend this amp to all low budget enthusiasts.
7 out of 7 people found this helpful
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5 out of 5

Great little amp!

Written By Devin, Aberdeen, SD on Tuesday, May 12, 2009
Crutchfield Customer Review (What's this?)
 
Got a new RF Prime R150-2 to replace a Pioneer 760 watt (max...380 RMS) amp that finally died on me. I'm using it to drive a single 12" Sony sub in a sealed box. The Rockford amp is rated at 150 watts RMS @ 4 ohms, but the sheet that came in the box shows that mine actually puts out 175 watts! Way to go Rockford! Installation took me a whole 5 minutes as all the wiring was already in place from the last amp. My budget for the replacement amp was around 120 bucks delivered, so this fit the bill perfectly. Also, I'm not out to blow my eardrums, just want a good sound in my car without having to upgrade my electrical system.

Now, compared to my old amp it sounds a lot fuller and has more bump even tho on paper it puts out 200 less watts. Really tight lows. Quality over quantity. Very clean power and quiet. No turn on thumps, speaker hiss or hum. Subwoofer output is more than enough for what I need. My rear view mirror dances around nicely when turned up. The punch boost adds good low end thump, tho this series of amps do not have the remote knob so you can't adjust it on the go.

Once I get around to upgrading the rest of my car, I'll probably get the Prime 500 watt mono for the sub and get another one more of these to drive the front and back speakers.



9 out of 9 people found this helpful
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5 out of 5

Great AMP for the $$$

Written By William, Cincinnati,Ohio on Sunday, April 19, 2009
 
The amp was a breeze to install, and it provides very clean distortion free power to my pair of 10 inch Pioneer subs. You really can't go wrong with any Rockford Fosgate product.
3 out of 4 people found this helpful
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Add accessories for the Rockford Fosgate Prime R150-2

You'll need an amp wiring kit to install your new amplifier, as wiring is not included. See all categories & accessories

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For a more in-depth review and enhanced detailed information on the Rockford Fosgate Prime R150-2, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_575R1502/Rockford-Fosgate-Prime-R150-2.html ).