Prime 300 Watt 4-Channel Amplifier

Overview

Rockford Fosgate R2-300X4 is an efficient 300W Class-D amp with C.L.E.A.N. circuitry and P.O.W.E.R. supply, reducing demand on your vehicle's electrical system.

Features

• High Level Input Capable
• 2/4 Channel Input Selection Switch
• Balanced Differential Inputs with RCA Pass Through Outputs
• Auto-Sense bypass switch for vehicles with RAP (Retained Accessory Power)
• Features C.L.E.A.N. Set-up
• Front and Rear Variable Input Gain adjustment level
• Fully Adjustable 12 dB/octave High and Low pass Butterworth Crossovers
• Top Mounted Control Panel
• Full Range Class-D
• CEA-2006 Compliant & CE Compliant
• Short Circuit & Over Current Protection
• 1 Year Warranty
• Cast aluminum heat sink

Technologies

• CTA-2006 Compliant: Power ratings on Rockford Fosgate amplifiers conform to CTA-2006 industry standards. These guidelines mean your amplifier's output power ratings are REAL POWER numbers, not inflated marketing ratings.
• P.O.W.E.R.: Power supply circuit design that allows the amplifier to increase output power as voltage increases.
• Full Range Class-D: A full-range version of the Class-D topology which is a high efficiency amplifier design that reduces current consumption from the charging system.
• C.L.E.A.N. Technology: C.L.E.A.N. (Calibrated Level Eliminates Audible Noise) is a patented circuit with in/out clip LEDs to help match a source to amp and optimize output.
• MEHSA 4 (Maximum Efficiency Heat Sink Application): MEHSA⁴ reduces MOSFET temperatures, lowers distortion, increases durability and prolongs the output device life span.
• Balanced Differential Inputs: Differential inputs eliminate noise picked up by signal cables.
• NOMAD: NOMAD is a "real time" analog computer that protects your amplifier from shorting speaker wires and dangerously low speaker impedances.
• CE Compliant: This product fulfills all essential safety and environmental requirements as defined in the European Directives (768/2008 EC).

Specifications

CEA-2006 Compliant	CEA-2006 Power Rating 50W x 4 @ 4Ω ≤1.0% THD+N
Number of Channels	4
Rated Power (RMS Continuous Power)	50 Watts x 4 @ 4Ω 75 Watts x 4 @ 2Ω 150 Watts x 2 @ 4Ω Bridged/Mono
Total Power (Sum of Rated Power)	300 Watts
Dynamic Power (PVC/PowerCube®)	70 Watts x 4 @ 4Ω 115 Watts x 4 @ 2Ω 230 Watts x 2 @ 4Ω Bridged/Mono
Bridgeable	Yes
Frequency Response	20 Hz - 20 kHz
Input Sensitivity	Low-Level: 150 mV - 4 V High-Level: 450 mV - 12 V
Circuit Topology Class	Class-D
Efficiency (average)
Total Harmonic Distortion (THD+Noise)	4Ω: <1.0% 2Ω: <1.0%
Signal-to-Noise (CEA)	CEA-2006: >70 dB Rated-Power: >90 dB
Channel Separation	>50 dB
Common Mode Rejection Ratio	>55 dB
Damping Factor
Accepts RCA Input	Yes
Signal Input	Front Low-Level: 4 RCA Front High-Level: 4-Pin Molex Rear Low-Level: 4 RCA Rear High-Level: 4-Pin Molex Input Switch: 2/4 Input (works for RCA/hi-level inputs)
Signal Output	Low-Level: 2 RCA (Pass-Thru active with RCA or Hi-Level input)
Pass Thru Output	Yes
Tone Controls	No
Adjustable Crossovers	Yes
Crossover Controls	Front High-Pass: 50 Hz - 250 Hz @ 12dB/Octave Butterworth Front Low-Pass: 50 Hz - 250 Hz @ 12dB/Octave Butterworth Rear High-Pass: 50 Hz - 250 Hz @ 12dB/Octave Butterworth Rear Low-Pass: 50 Hz - 250 Hz @ 12dB/Octave Butterworth All-Pass: Yes
Remote Controls	No
Visual Indicators	POWER (Blue) / PROTECT (Red) C.L.E.A.N. IN (Red) C.L.E.A.N. OUT Front (Blue/Red) C.L.E.A.N. OUT Rear (Blue/Red)
Power Wire Gauge	4 AWG
Power Input Connector	Compression Terminal Block
Speaker Wire Gauge	8 AWG
Speaker Output Connector	Compression Terminal Block
Cooling	Convection
Heatsink Type	Die Cast Aluminum
Operating Voltage	9 - 16 VDC
Recommended Fuse (not included)	60 A
Average Current Draw (13.8V Music)
Max. Current Draw (13.8V Sinewave)	39 A
Suggested Alternator
Dimensions (H x W x D)	1.9" x 6.8" x 10.1" (4.9 cm x 17.3 cm x 25.5 cm)
Shipping Weight

Videos

• R2 Amplifier Product Overview - Rockford Fosgate's R2 amplifiers are the building blocks for great audio systems, powerful enough to even DRIVE our Punch speakers and subwoofers. They have undergone an amazing upgrade by packing them with the latest features at an incredible value. Best of all, they are designed and engineered here in Tempe, Arizona.