Rockford Fosgate PBR300X4 Punch BRT 300-Watt Ultra Compact 4-Channel Amplifier

by Rockford Fosgate

Product Features

• Four-channel, 4-ohm (only) amplifier with 75 Watts x 4 @ 4-Ohms power rating and 300 watts total power
• Designed for stereo front/rear systems that require little space--just 1.53 x 4.25 x 6.75 inches
• High- and low-level inputs with variable 4-6 volt hi level DC offset voltage input turn-on control
• Selectable 80Hz LP/AP/80Hz HP filter @ 12dB/Octave
• One-year limited warranty
• Features Patend Pending Boosted Rail Technology For High Power With low Current Draw
• On Board PEQ Punch Equalization With 18db Of Boost At 35 Hz And Or 12db Of Boost At 12K Hz
• DTM Dynamic Thermal Management Evenly Distributes Heat Across Entire Amplifier For Reliability
• Power Ratings 75 X 4 At 4 Ohms
• Accepts RCA Or Speaker level Input and Auto Senses @ 7.5v For Remote Turn On

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Product Description

Amazon.com

The PBR300X4 is a full-range 4-channel amplifier designed for stereo front/rear systems that requires little space. Rockford's Boosted Rail Technology provides an ultra efficient-design generating 300 Watts of power, and the amplifier also boasts a variable hi-level DC offset turn-on circuit for easy installation into any OEM system. Great for motorcycles and recreational vehicles.

Rockford Fosgate Punch Series Amplification For over 25 years, Punch amplifiers have set the standard in the car audio amplifier industry and they continue to do so today. It's the reason that they have become the most popular amplifiers in the world. Each of the Punch family amplifiers reproduce sonic perfection along with impressive power in a compact chassis.

A full-range 4-channel amplifier designed for stereo front/rear systems that requires little space.

300 Watts in an Ultra-Compact Amplifier

CEA-2006

Power ratings on Rockford Fosgate amplifiers conform to CEA-2006 industry standards. These guidelines mean your amplifier's output power ratings are REAL POWER numbers, not inflated marketing ratings.

Discrete Surface Mount

DSM--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.

Dynamic Thermal Management

Heat is often inefficiently dissipated across a heatsink causing "hot spots". This impacts important design goals, which are:

• Keeping internal components cool.
• Maximizing potential of all components.
• Reducing distortion for better sound quality.
• Increasing efficiency to produce more power.

Rockford Fosgate engineers have developed an award winning cooling design called DTM. This patent pending design seamlessly manages the output of power supply temperatures, while evenly distributing the excess heat across the entire amplifier.

MEHSA³

MEHSA³ (Maximum Efficiency Heat Sink Application--gen. 3) 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 combined with our optimized heatsink designs, DSM (Discrete Surface Mount) technology and MOSFET devices, allows Rockford Fosgate to squeeze more watts per cubic inch from every output device as well as provide consistent thermal stability. The 3rd generation creates a dielectric layer between the ceramic topside and the aluminum base that retains all of the electrical isolation and capacitive coupling of the original MEHSA material increasing it's thermal conductivity. The higher power handling results in a 20% reduction in thermal impedance.

Discrete surface mount componenents for ultra-efficient operation and lower operating temperatures.

NOMAD

NOMAD is a "real time" analog computer that protects your amplifier from shorting speaker wires and dangerously low speaker impedances.

Punch EQ2

In the early 70's, Jim Fosgate studied the acoustical properties of automobiles. Utilizing a real-time analyzer and pink noise, he would graph out the acoustical characteristics of each car he tested. Jim discovered three problems that were common to all cars:

• A midbass hump between 100-275Hz
• A steep roll-off of high frequencies from 2kHz up to 20kHz
• Reduced bass response below 50Hz

The Punch EQ on-board equalization circuit helps correct for these acoustical deficiencies in the listening environment. When set to Low-Pass(LP) operation, it becomes a variable Bass Boost. When set to High-Pass (HP) operation, it acts as a variable Mid-Bass and Treble Boost. When set to All Pass (AP) operation, both Bass and Treble frequencies are boosted.

About Rockford Fosgate

Setting the standard for excellence in the audio industry, the Rockford Corporation markets and distributes high-performance audio systems for the mobile audio aftermarket and OEM market. Headquartered in Tempe, Ariz., Rockford Corporation is a publicly traded company and manufactures its products under four brands: Rockford Fosgate, Rockford Acoustic Design, Lightning Audio and InstallEdge.com.

PBR300X4 Specifications

Number of Channels:	4
Rated Power:	75 Watts x 4 @ 4-Ohms
Total Power:	300 Watts
Dynamic Power:	300 Watts @ 0 degrees RES
Bridgeable:	No
Crossover Controls:	Selectable 80Hz LP/AP/80Hz HP @ 12dB/Octave
Signal Input:	Hi-Level: Variable DC offset sensitivity High-Level: harness Low-Level: 2 Pair RCA
Power Input Connector:	Block Harness
Power Wire Gauge:	10 AWG
Speaker Output Connector:	4-Pin Harness
Speaker Wire Gauge:	Harness 16 AWG
Heat Sink Type:	Extruded aluminum
Cooling:	Convection
Visual Indicators:	Power, Protect, Boost
Circuit Topology Class:	Class BR
Frequency Response:	20Hz - 20kHz +/-1dB
Dimensions (HxWxL):	1.53" x 4.25" x 6.75" (3.90cm x 10.8cm x 17.2cm)

What's in the Box

Rockford Fosgate PBR300X4 Amplifier, Speaker Output Harness, Input Harness, Documentation

Product Description

Rockford Fosgate Punch 2011 or newer P1 or P2 Series Subwoofer Grille. A cost effective way to protect your subwoofer. Uses existing subwoofer trim ring.

Most Helpful Customer Reviews

9 of 10 people found the following review helpful

5.0 out of 5 stars Love this little guy December 21, 2011

By S. Shelton

Amazon Verified Purchase

I'm not really an expert on amps because my current setup is the first time I've ever attempted to upgrade my truck's audio with new amplifiers. What I can say is that this device puts out far more volume than I could handle if I allowed it to do so. The audio sounds very clean to me too.

I was not interested in blasting ghettos or "impressing" people in other vehicles with my audio system. I only wanted to have nice, clean, loud sound and that's exactly what this amp provides. Space in my vehicle was limited so this thing's tiny size is a great benefit since I wanted all of this stuff to be hidden.

If I had to mention any minor complaints it would be the manner by which wires are connected because I'd have preferred more standardized plugs and 4 gauge power/ground connections, but this is a minor complaint.

My main complaint is that the thing gets hot. Very hot. I can't help but wonder if the daily fluxuation from intense heat to cold will damage the internal components after a while. I would not recommend placing this directly against carpet and on mine I mounted it to a piece of diamond-plate aluminum with washers lifting it from the plate. This allows air to circulate around the entire device and allows the plate to act as a big heat sink.

5 of 5 people found the following review helpful

5.0 out of 5 stars Perfect size - Perfect output- Easy Install May 7, 2012

By craunja

Amazon Verified Purchase

The compact size of the amplifier worked perfect for an installation on a Harley Davidson 07 FLHX Street Glide. It powers after-market speakers great on the open road at highway speeds. The install was fairly simple and I recommend it.

5 of 6 people found the following review helpful

5.0 out of 5 stars great little amp! May 15, 2012

By shawn

Amazon Verified Purchase

great little amp! I was looking for a small amp with good power to fit in my fairing on my bike and this one exceeded all my expectations by far! fits right on top the radio and was easy to hook up with all the different connectors it came with.(you will need to buy an amp hook up kit though) lots of clarity and power to the speakers. all in all i would definatley buy another one if i need it!