Rockford Fosgate 4-Channel Amplifiers | Car Amplifiers | Car Electronics & Auto Parts at Sonic Electronix
Narrow Your Results

Rockford Fosgate 4-Channel Amplifiers

400W 4-Channel Class D Prime Series Full Range Amplifier

• 75W x 4-Chan. @ 4 ohms
• 100W x 4-Chan. @ 2 ohms
• 200W x 2 Chan. @ 4 ohms Bridged
• Variable Bass Boost
• Variable High-Pass Crossover
• CEA-2006 Compliant

$179.99

IN STOCK

300W RMS Punch Series Boosted Rail Compact 4-Channel Amplifier

• RMS 75 x 1 @ 4 ohms
• Features Rockford Fosgate's Class-BR Topology
• CEA-2006 Compliant
• Ultra Compact Chassis
• Boosted Rail Design
• Dimensions: 6.75"L x 4.25"W x 1.53"H

VIP Guarantee - FREE 2-Day Shipping,
10% Rewards, Extended Warranty and more!

$209.99

IN STOCK

300W 4-Channel Class AB Prime Series Full Range Amplifier

• 50W x 4-Chan. @ 4 ohms
• 75W x 4-Chan. @ 2 ohms
• 150W x 2 Chan. @ 4 ohms Bridged
• Selectable Bass Boost, Punch EQ
• Variable High-Pass & Low-Pass Crossover
• CEA-2006 Compliant
• Soft Start Turn-On

Add a 100% Copper, True 4 Gauge Amp Kit and save 25%

$169.99

IN STOCK

  • 4.6
9 reviews

250W RMS 4-Channel Class AB Prime Series Full Range Amplifier

• 40W x 4-Chan. @ 4 ohms
• 60W x 4-Chan. @ 2 ohms
• 125W x 2 Chan. @ 4 ohms Bridged
• Variable Bass Boost
• Variable High-Pass Crossover
• CEA-2006 Compliant
• Soft Start Turn-On

$119.99

IN STOCK

Only 1 Left!

600W Power Series Compact 4-Channel Class AB Car Amplifier

• 100W x 4-Chan. @ 4 ohms
• 150W x 4-Chan. @ 2 ohms
• 300W x 2 chan. @ 4 ohms
• 600W x 4-Chan. Max
• NOMAD protection circuitry: thermal, overload or short protection
• MOSFET power supply

VIP Guarantee - FREE 2-Day Shipping,
10% Rewards, Extended Warranty and more!

$599.99

IN STOCK

400W Power Series Compact 4-Channel Class AB Car Amplifier

• 60W x 4-Chan. @ 4 ohms
• 100W x 4-Chan. @ 2 ohms
• 200W x 2 chan. @ 4 ohm
• 400W x 1 chan. Max
• MOSFET Power Supply
• High-pass and low-pass crossover
• Audiophile grade speaker connections

VIP Guarantee - FREE 2-Day Shipping,
10% Rewards, Extended Warranty and more!

$399.99

IN STOCK

Only 1 Left!

Compact 4-channel amplifier (4 x 100 Watts RMS @ 4 ohms)

• 4 ohms: 100 watts x 4 chan.
• 2 ohms: 100 watts x 4 chan.
• Bridged, 4 ohms: 200 watts x 2 chan.
• Total Power: 400 Watts
• CEA-2006 Compliant
• C.L.E.A.N. Technology
• Fan Cooled

VIP Guarantee - FREE 2-Day Shipping,
10% Rewards, Extended Warranty and more!

Add a 100% Copper, True 8 Gauge Amp Kit and save 25%

$399.99

IN STOCK

Only 1 Left!

600W 4-Channel Punch Series Class AB Marine Amplifier

• RMS: 75W x 4 @ 4 ohms, 150W x 4 @ 2 ohms, Bridged 300W x 2 @ 4ohms
• CEA-2006 Compliant
• Features C.L.E.A.N. Set-up
• Protected against Dust, UV, & Corrosion
• Marine grade two part epoxy coating on circuit boards

VIP Guarantee - FREE Shipping,
10% Rewards, Extended Warranty and more!

Punch Level Control Bass Knob

$469.99

SPECIAL ORDER

Ships at Later Date

1000W 4-Channel Class AD Power Series Constant Power Amplifier

• 1000W RMS
• 250W x 1-Chan @ 1 Ohm
• NOMAD Real Time Computer Protection
• 50-500 Hz LP/AP/HP Crossovers
• Constant Power

VIP Guarantee - FREE Shipping,
10% Rewards, Extended Warranty and more!

$999.99

SPECIAL ORDER

Ships at Later Date

  • 5.0
1 review

400W 4-Channel Punch Series Class AB Marine Amplifier

• RMS: 50 watts x 4 chan. @ 4 ohms, 100 watts x 4 chan. @ 2 ohms, Bridged 200 watts x 2 chan. @ 4 ohms
• CEA-2006 Compliant
• Features C.L.E.A.N. Set-up
• Protected against Dust, UV, & Corrosion
• Marine grade two part epoxy coating on circuit boards

VIP Guarantee - FREE 2-Day Shipping,
10% Rewards, Extended Warranty and more!

$369.99

IN STOCK

Only 2 Left!

400W 4-Channel Class D Prime Series Full Range Amplifier + Amp Kit

• 75W x 4-Chan. @ 4 ohms
• 100W x 4-Chan. @ 2 ohms
• 200W x 2 Chan. @ 4 ohms Bridged
• Variable Bass Boost
• Variable High-Pass Crossover
• 4 Gauge 4-Channel X-Series Complete Amplifier Installation Kit

$279.98

IN STOCK

300W 4-Channel Class AB Prime Series Full Range Amplifier + Amp Kit

• 50W x 4-Chan. @ 4 ohms
• 75W x 4-Chan. @ 2 ohms
• 150W x 2 Chan. @ 4 ohms Bridged
• Selectable Bass Boost, Punch EQ
• Variable High-Pass & Low-Pass Crossover
• CEA-2006 Compliant
• Soft Start Turn-On
• Complete 4 Gauge 4-Channel Amplifier Installation Kit

$195.94

IN STOCK

400W Punch Series 4-Channel Stereo Class AB Car Power Amplifier (P400X.4)

• 50 Watts RMS x 4 @ 4 ohms
• 100 Watts RMS x 4 @ 2 ohms
• 200 Watts RMS x 2 @ 4 ohms, Bridged
• Built In NOMAD "Real Time" Analog Computer
• 4/3/2/1 Channel Operation
• 4 Gauge Power and Ground Inputs
• MESHA3 Reduces MOSFET Temperatures for Improved Durability

VIP Guarantee - FREE Shipping,
10% Rewards, Extended Warranty and more!

$269.99

OUT OF STOCK

  • 3.9
7 reviews

600W Punch Series 4-Channel Stereo Class AB Car Power Amplifier

• 75W x 4-Chan. @ 4 ohms
• 150W x 4-Chan. @ 2 ohms
• Built In NOMAD "Real Time" Analog Computer
• 4/3/2/1 Channel Operation
• 4 Gauge Power and Ground Inputs
• MESHA3 Reduces MOSFET Temperatures for Improved Durability

VIP Guarantee - FREE Shipping,
10% Rewards, Extended Warranty and more!

Rockford Fosgate Bass Knob w/your Amp Purchase

$369.99

OUT OF STOCK

400W Power Series Class-AD Marine 4-Channel Amplifier

• RMS: 100 watts x 4 chan. @ 4 ohms, 100 watts x 4 chan. @ 2 ohms, 200 watts x 2 chan. @ 4 ohm Bridged
• CEA-2006 Compliant Amplifier
• Rockford Fosgate 4/2 Ohm muti-impedance Constant Power technology
•Differential inputs with high level auto turn-on feature
• C.L.E.A.N. input/output clip detection and indicator LEDs
• 4-layer 2oz. copper circuit board with 2-part epoxy coating

VIP Guarantee - FREE 2-Day Shipping,
10% Rewards, Extended Warranty and more!

Add a 100% Copper, True 8 Gauge Amp Kit and save 25%

$449.99

IN STOCK

Only 1 Left!

Related Categories

Rockford Fosgate Amplifier Wiring Kits
Get all the cables, wires, and hardware you need to install your new car audio amplifier with one of these power amp kits. Amplifier wiring kits come with your basic power and ground cables, as well as other necessary wires. Select complete amplifier kits will include speaker wire, RCA interconnect cables, and more! To make sure you get the kit that is best designed for your car audio system, scroll down to the bottom of this page for the buying guide.
Get The Right Gauge Wire
Understand what gauge works best for your amp.
Read Guide
Rockford Fosgate Capacitors
Car audio capacitors are a great addition to any aftermarket audio system that is in need of a little extra power. Capacitors store a temporary electrical charge that can be released during periods of extra power strain. If a vehicle has dimming headlights when music is played, a capacitor could solve that problem.
Get The Right Capacitor
Reduce the strain on a vehicle's electrical system.
Read Guide
Rockford Fosgate EQs & Sound Processors

Sound Processors Q & A

For those who want the most out their car audio system, a quality sound processor is a must. After some slight adjustments, your systems will sound like it has been professionally tuned and optimized. Tune your system to perfection with these crossovers, equalizers, and bass drivers. Click here to learn more about digital sound processors and to find out which type would be best for your car audio system.
Rockford Fosgate Marine Amplifiers
Enhance the sound on your boat by adding an amplifier to your marine audio system. These marine amps are the perfect way to get louder, bigger, and clearer sound quality on your boat. These marine amplifiers can be great for standard boat speakers, tower speakers, and even some marine PA systems. Each amp is specially treated and engineered to function in the same wet, salty environment that boats are in.
Rockford Fosgate Motorcycle Amplifiers
Your motorcycle will sound better than ever with the proper amplifier. Most of these amps are specially designed with special materials that can withstand the vibrations and elemental exposure, while others are designed with an extremely small footprint to fit conveniently in a saddlebag or other tight installations. Many of the products in this category are specifically designed for certain motorcycles, making installation a breeze.