Rockford Fosgate Amplifiers (78)

Rockford Fosgate M2-500X1 Monoblock Marine Amplifier with Absolute KIT4 4 Gauge Amp Kit Rockford Fosgate M2-500X1 500 Watt Monoblock marine amplifierDesigned to withstand the elements, the M2-500X1 Element Ready™ amplifier is a 500 watt, class-D model, capable of operating at 4Ω or 2Ω mono. This amplifier is extremely efficient because of its class D technology which reduces demand on the electrical system. The amp also features C.L.E.A.N. circuitry to help you adjust your gain settings, a P.O.W.E.R. Supply that generates more power as voltage increases, and integrated Punch EQ that corrects for acoustic deficiencies while delivering up to 3X the bass. For subwoofers, a variable infrasonic filter and remote level control allow you to tune the bass for the desired level for the music. General Features: Element Ready™ design protects against outdoor exposure Conformal coated circuit board protects against dust and water UV stable powder-coated cast aluminum heatsink Zinc Nickel-plated Marine grade brass connection terminals C.L.E.A.N. input/output clip detection and indicator LEDs MEHSA 4 (Maximum Efficiency Heat Sink Application) NOMAD is a "real-time" analog computer that protects your amplifier from shorting speaker wires and dangerously low speaker impedances. Optimized using AudioGraph PowerCube measurement tool Continuously Variable On Board Punch EQ Includes RLC Remote Level Control Focused mass heatsink design Top Mounted Control Panel Fully Adjustable 12 dB/octave High and Low pass Butterworth Crossovers Short Circuit & Over Current Protection Variable Infrasonic Filter Integrated Power and Speaker Terminals Balanced Differential Inputs via Speaker Line or RCA Inputs RCA pass-thru outputs Integration with OEM and Aftermarket Radios "Auto-Sense" turn-on with remote out (high level in) Auto-Sense bypass switch for vehicles with RAP (Retained Accessory Power) Low Impedance Stability Proprietary testing using RATS (Rockford Automated Testing System) CEA-2006 Compliant & CE Compliant Rollback Protection Power Ratings: 300 Watts x 1 @ 4 ohms Power Ratings: 500 Watts x 1 @ 2 ohms Dynamic Power Ratings: 350 Watts x 1 @ 4 ohms Dynamic Power Ratings: 590 Watts x 1 @ 2 ohms Frequency Response: 20 Hz - 250 Hz Low-Level Input Sensitivity: 150 mV - 4 V High-Level Input Sensitivity: 450 mV - 12 V Total Harmonic Distortion (THD+Noise): <1.0% Low-Level Signal Input: 2 RCA High-Level Input Signal: 4-Pin Molex Low-Level Signal Output: 2 RCA (Pass-Thru active with RCA or Hi-Level input) Tone-Controls: 0 to +18 dB @ 45 Hz Low-Pass Crossover Controls: 50 Hz - 250 Hz @ 12dB/Octave Butterworth Infrasonic Crossover Controls: 15 Hz - 40 Hz @ 12dB/Octave Butterworth 4 gauge power and ground wiring is recommended for installation. Contact us for information regarding a discount on select amplifier kits from our website when purchased together with this amplifier. Dimensions: 1.9"W x 6.8"D x 8.5"H Authorized Internet Dealer 1-year Manufacturer's Warranty ⚠️Warning:This product can expose you to, known to the State of California, to cause cancer. For more information, go to P65Warnings.ca

Rockford Fosgate M2-500X1 Monoblock Marine Amplifier Rockford Fosgate M2-500X1 500 Watt Monoblock marine amplifierDesigned to withstand the elements, the M2-500X1 Element Ready™ amplifier is a 500 watt, class-D model, capable of operating at 4Ω or 2Ω mono. This amplifier is extremely efficient because of its class D technology which reduces demand on the electrical system. The amp also features C.L.E.A.N. circuitry to help you adjust your gain settings, a P.O.W.E.R. Supply that generates more power as voltage increases, and integrated Punch EQ that corrects for acoustic deficiencies while delivering up to 3X the bass. For subwoofers, a variable infrasonic filter and remote level control allow you to tune the bass for the desired level for the music. General Features: Element Ready™ design protects against outdoor exposure Conformal coated circuit board protects against dust and water UV stable powder-coated cast aluminum heatsink Zinc Nickel-plated Marine grade brass connection terminals C.L.E.A.N. input/output clip detection and indicator LEDs MEHSA 4 (Maximum Efficiency Heat Sink Application) NOMAD is a "real-time" analog computer that protects your amplifier from shorting speaker wires and dangerously low speaker impedances. Optimized using AudioGraph PowerCube measurement tool Continuously Variable On Board Punch EQ Includes RLC Remote Level Control Focused mass heatsink design Top Mounted Control Panel Fully Adjustable 12 dB/octave High and Low pass Butterworth Crossovers Short Circuit & Over Current Protection Variable Infrasonic Filter Integrated Power and Speaker Terminals Balanced Differential Inputs via Speaker Line or RCA Inputs RCA pass-thru outputs Integration with OEM and Aftermarket Radios "Auto-Sense" turn-on with remote out (high level in) Auto-Sense bypass switch for vehicles with RAP (Retained Accessory Power) Low Impedance Stability Proprietary testing using RATS (Rockford Automated Testing System) CEA-2006 Compliant & CE Compliant Rollback Protection Power Ratings: 300 Watts x 1 @ 4 ohms Power Ratings: 500 Watts x 1 @ 2 ohms Dynamic Power Ratings: 350 Watts x 1 @ 4 ohms Dynamic Power Ratings: 590 Watts x 1 @ 2 ohms Frequency Response: 20 Hz - 250 Hz Low-Level Input Sensitivity: 150 mV - 4 V High-Level Input Sensitivity: 450 mV - 12 V Total Harmonic Distortion (THD+Noise): <1.0% Low-Level Signal Input: 2 RCA High-Level Input Signal: 4-Pin Molex Low-Level Signal Output: 2 RCA (Pass-Thru active with RCA or Hi-Level input) Tone-Controls: 0 to +18 dB @ 45 Hz Low-Pass Crossover Controls: 50 Hz - 250 Hz @ 12dB/Octave Butterworth Infrasonic Crossover Controls: 15 Hz - 40 Hz @ 12dB/Octave Butterworth Dimensions: 1.9"W x 6.8"D x 8.5"H Authorized Internet Dealer 1-year Manufacturer's Warranty ⚠️Warning:This product can expose you to, known to the State of California, to cause cancer. For more information, go to P65Warnings.ca

Rockford Fosgate Prime R2-1200X1 mono amplifier 1200W RMS x 1 at 1-ohm monoblock subwoofer amplifier Primed for performance, the R2-1200X1 is a 1200-watt, class-D amplifier capable of operating at 4Ω, 2Ω, or 1Ω mono. This amplifier is extremely efficient because of its class-D technology, which reduces demand on the vehicle's electrical system. The amp also features C.L.E.A.N. circuitry to help you adjust your gain settings, a P.O.W.E.R. Supply that generates more power as voltage increases, and integrated Punch EQ that corrects for acoustic deficiencies while delivering up to 3X the bass. For subwoofers, a variable infrasonic filter and remote level control allow you to tune the bass for the desired level of the music. General Features: Rockford Fosgate Prime R2-1200X1 Class-D Full Range Monoblock Amplifier RMS Power Rating: 4 ohms: 400 watts x 1 chan. 2 ohms: 800 watts x 1 chan. 1 ohm: 1200 watts x 1 chan. Balanced Differential Inputs with RCA Pass Through Outputs High-Level Input Capable Defeatable Auto Turn on Circuit Features C.L.E.A.N. Set-up Variable Input Gain adjustment level R.L.C. Remote Level Control Variable Infrasonic Filter Continuously Variable On-Board Punch EQ Top Mounted Control Panel Short Circuit & Over Current Protection CEA-2006 Compliant & CE Compliant Full Range Class D Rollback Protection Fully Adjustable 12 dB/octave High and Low pass Butterworth Crossovers Input sensitivity: Low-Level: 150 mV - 4 V High-Level: 450 mV - 12 V Frequency Response: 20 Hz - 250 Hz Total Harmonic Distortion (THD): >1% Low-Pass: 50 Hz - 250 Hz @ 12dB Sub Infrasonic: 15 Hz - 40 Hz Fuse Rating: 120A 4-gauge power and ground wiring are recommended for installation. Dimensions: 1.9" x 6.8" x 11.3" Authorized Internet Dealer 1-year Manufacturer's Warranty What is in the R2-1200X1 package: Mono subwoofer amplifier Wired Remote Level Control module 16' Remote cable (RJ-25 connector on both ends) One 7" Speaker input harness 3mm Allen Hex key Four 3/4" Screws Two 1/2" Screws 5 Flat washers 1 Nut Installation and Operation Instructions Certificate of Performance R2-1200X1 owner’s manual ⚠️Warning:This product can expose you to, known to the State of California to cause cancer. For more information, go to P65Warnings.ca.

Rockford Fosgate Prime R2-750X1 750W Prime Series Monoblock Subwoofer Class D Amplifier + 0 Gauge Amp Kit Primed for performance, the R2-750X1 amplifier is a 750-watt, Class-D, capable of operating at 4Ω, 2Ω, or 1Ω mono. This amplifier is extremely efficient because of its Class-D technology which reduces demand on the vehicle's electrical system. The amp also features C.L.E.A.N. circuitry to help you adjust your gain settings, a P.O.W.E.R. Supply that generates more power as voltage increases, and integrated Punch EQ that corrects for acoustic deficiencies while delivering up to 3X the bass. For subwoofers, a variable infrasonic filter and remote level control allow you to tune the bass for the desired level of the music. 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. General Features: Rockford Fosgate Prime R2-750X1 RMS Power Rating: 4 ohms: 250 watts x 1 channel RMS Power Rating: 2 ohms: 500 watts x 1 channel RMS Power Rating: 1 ohm: 750 watts x 1 channel Total power output: 500 watts Balanced Differential Inputs with RCA Pass Through Outputs High-Level Input Capable Defeatable Auto Turn on Circuit Features C.L.E.A.N. Set-up Variable Input Gain adjustment level R.L.C. Remote Level Control Variable Infrasonic Filter Continuously Variable On-Board Punch EQ Top Mounted Control Panel Short Circuit & Over Current Protection CEA-2006 Compliant & CE Compliant Full Range Class D Rollback Protection Fully Adjustable 12 dB/octave High and Low pass Butterworth Crossovers Input sensitivity: Low-Level: 150 mV - 4 V Input sensitivity: High-Level: 450 mV - 12 V Frequency Response: 20 Hz - 250 Hz Total Harmonic Distortion (THD): >1% Crossover Controls: Low-Pass: 50 Hz - 250 Hz Crossover Controls: Sub Infrasonic: 15 Hz - 40 Hz Recommended Fuse Rating: 120A 4-gauge power and ground wiring are recommended for installation. Dimensions: "1.9" x "6.8" x "10.1" Authorized Internet Dealer 1-Year Manufacturer's Warranty What is in the R2-750X1 package: Mono subwoofer amplifier Wired Remote Level Control module 16' Remote cable (RJ-25 connector on both ends) One 7" Speaker input harness 3mm Allen Hex key Four 3/4" Screws Two 1/2" Screws 5 Flat washers 1 Nut Installation and Operation Instructions Certificate of Performance Rockford Fosgate contact information Rockford Fosgate R2-500X1 owner's manual ⚠️Warning:This product can expose you to, known to the State of California, to cause cancer. For more information, go to P65Warnings.ca.

Rockford Fosgate Prime R1200-1D 1200W RMS Prime Series Class-D Monoblock 1-Ohm Stable Amplifier + Absolute KIT4 4 Gauge Amp Kit The PRIME R1200-1D is an ultra-efficient mono amplifier for cars and trucks that can produce 1,200 Watts into a 1-Ohm load without taxing the electrical system. The frequency response of the R1200-1D is optimized exclusively for use with subwoofers. The Prime R1200-1D subwoofer amplifier offers high efficiency through the implementation of its Class-D circuitry while delivering rich, full bass to any system. This car amplifier is optimized for subwoofers with the implementation of an infrasonic filter to keep those ultra-low (inaudible) bass notes from damaging your subwoofer system. Match with a 4-channel stereo amplifier for your mids/highs and you'll have a Rockford Fosgate system that any Car Audio Fanatic will envy. General Features: Rockford Fosgate Prime Series R1200-1D Class-D 1-Ohm Stable Monoblock Amplifier RMS Power Rating: 4 ohms: 400 watts x 1 channel RMS Power Rating: 2 ohms: 800 watts x 1 channel RMS Power Rating: 1 ohm: 1200 watts x 1 channel CEA-2006 Compliant Amplifier Pulse Width Modulated MOSFET power supply Wired remote bass level control included LED power (green) and protect (red) indicators Soft start turn-on Nickel-plated RCA level inputs Nickel-plated screw terminals Preamp RCA outputs to daisy chain multiple amps 3-way protection circuitry (thermal, overload, and speaker short protection) Heavy-duty aluminum alloy heat-sink for extreme heat dissipation Input sensitivity: 150mV - 4V Frequency Response: 20 - 250Hz Total Harmonic Distortion (THD): <1.0% Signal to Noise Ratio: 100dB Variable low-pass filter: 50 - 250 Hz, 12 dB/octave Subsonic (infrasonic) filter: 15 - 40 Hz , 12 dB/octave Variable Bass Boost: 0 to +18 dB bass boost at 45 Hz Fuse Rating: 150A x 1 (recommended, not included) 12 AWG speaker wire gauge outputs 4 gauge power and ground wiring is recommended for installation Weight: 7.825 lbs Dimensions: 11.06"W x 6.77"L x 1.97"H Also Found As Prime 1200 Watt, R12001D, R1200, R12001 Authorized Internet Dealer 1-year Manufacturer's Warranty ⚠️Warning:Cancer and Reproductive Harm-www.P65Warnings.ca.gov

Rockford Fosgate Prime R1200-1D 1200W RMS Prime Series Class-D Monoblock 1-Ohm Stable Amplifier The PRIME R1200-1D is an ultra-efficient mono amplifier for cars and trucks that can produce 1,200 Watts into a 1-Ohm load without taxing the electrical system. The frequency response of the R1200-1D is optimized exclusively for use with subwoofers. The Prime R1200-1D subwoofer amplifier offers high efficiency through the implementation of its Class-D circuitry while delivering rich, full bass to any system. This car amplifier is optimized for subwoofers with the implementation of an infrasonic filter to keep those ultra-low (inaudible) bass notes from damaging your subwoofer system. Match with a 4-channel stereo amplifier for your mids/highs and you'll have a Rockford Fosgate system that any Car Audio Fanatic will envy. General Features: Rockford Fosgate Prime Series R1200-1D Class-D 1-Ohm Stable Monoblock Amplifier RMS Power Rating: 4 ohms: 400 watts x 1 channel RMS Power Rating: 2 ohms: 800 watts x 1 channel RMS Power Rating: 1 ohm: 1200 watts x 1 channel CEA-2006 Compliant Amplifier Pulse Width Modulated MOSFET power supply Wired remote bass level control included LED power (green) and protect (red) indicators Soft start turn-on Nickel-plated RCA level inputs Nickel-plated screw terminals Preamp RCA outputs to daisy chain multiple amps 3-way protection circuitry (thermal, overload, and speaker short protection) Heavy-duty aluminum alloy heat-sink for extreme heat dissipation Input sensitivity: 150mV - 4V Frequency Response: 20 - 250Hz Total Harmonic Distortion (THD): <1.0% Signal to Noise Ratio: 100dB Variable low-pass filter: 50 - 250 Hz, 12 dB/octave Subsonic (infrasonic) filter: 15 - 40 Hz , 12 dB/octave Variable Bass Boost: 0 to +18 dB bass boost at 45 Hz Fuse Rating: 150A x 1 (recommended, not included) 12 AWG speaker wire gauge outputs 4 gauge power and ground wiring is recommended for installation Weight: 7.825 lbs Dimensions: 11.06"W x 6.77"L x 1.97"H Also Found As Prime 1200 Watt, R12001D, R1200, R12001 Authorized Internet Dealer 1-year Manufacturer's Warranty ⚠️Warning:This product can expose you to, known to the State of California, to cause cancer. For more information, go to P65Warnings.ca

Rockford Fosgate Prime R1200-1D 1200W RMS Prime Series Class-D Monoblock 1-Ohm Stable Amplifier + Absolute KIT0-RD 0 Gauge Amp Kit The PRIME R1200-1D is an ultra-efficient mono amplifier for cars and trucks that can produce 1,200 Watts into a 1-Ohm load without taxing the electrical system. The frequency response of the R1200-1D is optimized exclusively for use with subwoofers. The Prime R1200-1D subwoofer amplifier offers high efficiency through the implementation of its Class-D circuitry while delivering rich, full bass to any system. This car amplifier is optimized for subwoofers with the implementation of an infrasonic filter to keep those ultra-low (inaudible) bass notes from damaging your subwoofer system. Match with a 4-channel stereo amplifier for your mids/highs and you'll have a Rockford Fosgate system that any Car Audio Fanatic will envy. General Features: Rockford Fosgate Prime Series R1200-1D Class-D 1-Ohm Stable Monoblock Amplifier RMS Power Rating: 4 ohms: 400 watts x 1 channel RMS Power Rating: 2 ohms: 800 watts x 1 channel RMS Power Rating: 1 ohm: 1200 watts x 1 channel CEA-2006 Compliant Amplifier Pulse Width Modulated MOSFET power supply Wired remote bass level control included LED power (green) and protect (red) indicators Soft start turn-on Nickel-plated RCA level inputs Nickel-plated screw terminals Preamp RCA outputs to daisy chain multiple amps 3-way protection circuitry (thermal, overload, and speaker short protection) Heavy-duty aluminum alloy heat-sink for extreme heat dissipation Input sensitivity: 150mV - 4V Frequency Response: 20 - 250Hz Total Harmonic Distortion (THD): <1.0% Signal to Noise Ratio: 100dB Variable low-pass filter: 50 - 250 Hz, 12 dB/octave Subsonic (infrasonic) filter: 15 - 40 Hz , 12 dB/octave Variable Bass Boost: 0 to +18 dB bass boost at 45 Hz Fuse Rating: 150A x 1 (recommended, not included) 12 AWG speaker wire gauge outputs 4 gauge power and ground wiring is recommended for installation Weight: 7.825 lbs Dimensions: 11.06"W x 6.77"L x 1.97"H Also Found As Prime 1200 Watt, R12001D, R1200, R12001 Authorized Internet Dealer 1-year Manufacturer's Warranty ⚠️Warning:Cancer and Reproductive Harm-www.P65Warnings.ca.gov

Rockford Fosgate R2-300X4 Prime Series 300 Watts 4-Channel Class D Amplifier + Absolute KIT4 4G Amp Kit Primed for performance, the R2-300X4 is a 300-watt, full-range Class-D amplifier capable of operating at 4Ω or 2Ω stereo and 4Ω bridged/mono. This amplifier is extremely efficient because of its Class-D technology, which reduces the vehicle's electrical system demand. The amp also features C.L.E.A.N. circuitry to help you adjust your gain settings, a P.O.W.E.R. supply that generates more power as voltage increases. General Features: Rockford Fosgate Prime R2-300X4 Class-D Full-Range 4-Channel Amplifier 50 watts RMS x 4 at 4 ohms 75 watts RMS x 4 at 2 ohms 150 watts RMS x 2 bridged output at 4 ohms bridged mode Total power output: 3000 watts Balanced Differential Inputs with RCA Pass Through Outputs High-Level Input Capable Defeat able Auto Turn-On Circuit Features C.L.E.A.N. Set-up 2/4 Channel Input Selection Switch Front and Rear Variable Input Gain adjustment level Continuously Variable on-Board Punch EQ Top Mounted Control Panel Short Circuit & Over Current Protection CEA-2006 Compliant & CE Compliant Full Range Class D Fully Adjustable 12 dB/octave High and Low pass Butterworth Crossovers 1 Year Warranty Low level: 125mV-5V High level: 250mV-10V Frequency Response: 20 Hz - 20 kHz Hz Total Harmonic Distortion (THD): <1% Variable high-pass filter: 50 - 250 Hz, 24 dB/octave Variable low-pass filter: 50 - 250 Hz, 24 dB/octave Recommended Fuse Rating: 60A Dimensions: 1.9" x "6.8" x "10.1" Authorized Internet Dealer 1-year Manufacturer's Warranty What is in the R2-300X4 package: R2-300X4 Owner's Manual 4-Channel amplifier Two 7" Speaker input harnesses 3mm Allen Hex key Four 3/4" Screws 4 Flat washers Installation and Operation Instructions Certificate of Performance Rockford Fosgate contact information ⚠️Warning:This product can expose you to, known to the State of California to cause cancer. For more information, go to P65Warnings.ca.

Rockford Fosgate R2-300X4 Prime Series 300 Watts 4-Channel Class D Amplifier + Absolute KIT0 0 Gauge Amp Kit Rockford Fosgate R2-300X4 Prime Series 300 Watts 4-Channel Class D Amplifier Primed for performance, the R2-300X4 is a 300-watt, full-range Class-D amplifier capable of operating at 4Ω or 2Ω stereo and 4Ω bridged/mono. This amplifier is extremely efficient because of its Class-D technology, which reduces the vehicle's electrical system demand. The amp also features C.L.E.A.N. circuitry to help you adjust your gain settings, a P.O.W.E.R. supply that generates more power as voltage increases. General Features: Rockford Fosgate Prime R2-300X4 Class-D Full-Range 4-Channel Amplifier 50 watts RMS x 4 at 4 ohms 75 watts RMS x 4 at 2 ohms 150 watts RMS x 2 bridged output at 4 ohms bridged mode Total power output: 3000 watts Balanced Differential Inputs with RCA Pass Through Outputs High-Level Input Capable Defeat able Auto Turn-On Circuit Features C.L.E.A.N. Set-up 2/4 Channel Input Selection Switch Front and Rear Variable Input Gain adjustment level Continuously Variable on-Board Punch EQ Top Mounted Control Panel Short Circuit & Over Current Protection CEA-2006 Compliant & CE Compliant Full Range Class D Fully Adjustable 12 dB/octave High and Low pass Butterworth Crossovers 1 Year Warranty Low level: 125mV-5V High level: 250mV-10V Frequency Response: 20 Hz - 20 kHz Hz Total Harmonic Distortion (THD): <1% Variable high-pass filter: 50 - 250 Hz, 24 dB/octave Variable low-pass filter: 50 - 250 Hz, 24 dB/octave Recommended Fuse Rating: 60A Dimensions: 1.9" x "6.8" x "10.1" Authorized Internet Dealer 1-year Manufacturer's Warranty What is in the R2-300X4 package: R2-300X4 Owner's Manual 4-Channel amplifier Two 7" Speaker input harnesses 3mm Allen Hex key Four 3/4" Screws 4 Flat washers Installation and Operation Instructions Certificate of Performance Rockford Fosgate contact information ⚠️Warning:This product can expose you to, known to the State of California to cause cancer. For more information, go to P65Warnings.ca.

Rockford Fosgate R2-300X4 Prime Series 300 Watts 4-Channel Class D Amplifier + Absolute KIT4 4G Amp Kit Primed for performance, the R2-300X4 is a 300-watt, full-range Class-D amplifier capable of operating at 4Ω or 2Ω stereo and 4Ω bridged/mono. This amplifier is extremely efficient because of its Class-D technology, which reduces the vehicle's electrical system demand. The amp also features C.L.E.A.N. circuitry to help you adjust your gain settings, a P.O.W.E.R. supply that generates more power as voltage increases. General Features: Rockford Fosgate Prime R2-300X4 Class-D Full-Range 4-Channel Amplifier 50 watts RMS x 4 at 4 ohms 75 watts RMS x 4 at 2 ohms 150 watts RMS x 2 bridged output at 4 ohms bridged mode Total power output: 3000 watts Balanced Differential Inputs with RCA Pass Through Outputs High-Level Input Capable Defeat able Auto Turn-On Circuit Features C.L.E.A.N. Set-up 2/4 Channel Input Selection Switch Front and Rear Variable Input Gain adjustment level Continuously Variable on-Board Punch EQ Top Mounted Control Panel Short Circuit & Over Current Protection CEA-2006 Compliant & CE Compliant Full Range Class D Fully Adjustable 12 dB/octave High and Low pass Butterworth Crossovers 1 Year Warranty Low level: 125mV-5V High level: 250mV-10V Frequency Response: 20 Hz - 20 kHz Hz Total Harmonic Distortion (THD): <1% Variable high-pass filter: 50 - 250 Hz, 24 dB/octave Variable low-pass filter: 50 - 250 Hz, 24 dB/octave Recommended Fuse Rating: 60A Dimensions: 1.9" x "6.8" x "10.1" Authorized Internet Dealer 1-year Manufacturer's Warranty What is in the R2-300X4 package: R2-300X4 Owner's Manual 4-Channel amplifier Two 7" Speaker input harnesses 3mm Allen Hex key Four 3/4" Screws 4 Flat washers Installation and Operation Instructions Certificate of Performance Rockford Fosgate contact information ⚠️Warning:This product can expose you to, known to the State of California to cause cancer. For more information, go to P65Warnings.ca.