Best Rockford Fosgate Multichannel Amplifiers in 2026

Daisy
Last Updated: Feb 7, 2026

At a Glance: Our Top Picks for Rockford Fosgate Multichannel Amplifiers

KICKER 46CXA3604T CXA360.4 360w RMS 4-Channel Car Audio Amplifier Class A/B Amp
#TOP1
Kicker 46Cxa3604T Cxa360.4 360W Rms 4-Channel Car Audio
9.7
PM SCORE
Rockville dB55 4000 Watt/1000w CEA RMS 5 Channel Amplifier Car Stereo Amp, Loud!
#TOP2
Rockville Db55 4000 Watt/1000W Cea Rms 5 Channel
9.6
PM SCORE
Rockville dB45 3200 Watt/800w RMS 4 Channel Amplifier Car Stereo Amp, Loud!!
#TOP3
Rockville Db45 3200 Watt/800W Rms 4 Channel Amplifier
9.6
PM SCORE

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Summary of the Best Rockford Fosgate Multichannel Amplifiers of 2026

Kicker 46Cxa3604T Cxa360.4 360W Rms 4-Channel Car Audio Amplifier Class A/B Amp

KICKER
46CXA3604T
0.00 X 0.00 X 0.00 Inches
6.31 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
SoundsGoodStereo 6.49

Features

Input Sensitivity: 125mV–5V (Low Level) / 1V–40V (High Level)

Signal-to-Noise Ratio: 95dB

Frequency Response (Hz): 10Hz-20kHz

Power (watts/ch) 4 Ohm Stereo: 65x4

Power (watts/ch) 2 Ohm Stereo: 90x4

Rockville Db55 4000 Watt/1000W Cea Rms 5 Channel Amplifier Car Stereo Amp, Loud!

ROCKVILLE
DB55
3.00 X 3.00 X 3.00 Inches
10.75 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Includes: Amplifier. Bass Remote. Birth sheet with tested power. Owner’s manual. Mounting Screws. Warranty.

Rockville dB55 4000 Watt/2000 Watt RMS 5 Channel Amplifier. CEA Compliant Power Ratings (Rated at less than 1 % distortion) (Use these CEA ratings when matching and comparing with other CEA compliant brands such as Kicker, Rockford Fosgate, etc). 2 Ohm: 120 Watts x 4 + 500 Watts x 1 <1% THD+N. 4 Ohm: 80 Watts x 4 + 300 Watts x 1 <1% THD+N.

RMS Power Ratings: (Use these RMS ratings when comparing with great brands such as Hifonics, Earthquake, Soundstream, etc). 2 Ohm 240 Watts x 4 + 1000 Watts x 1. 4 Ohm: 160 Watts x 4 + 600 Watts x 1. Peak: (The amount of power the amplifier can produce for a split second at the loudest part of a song. 2 Ohm 480 Watts x 4 + 2000 Watts x 1. 4 Ohm: 320 Watts x 4 + 1200 Watts x 1.

High-Speed MOSFET Power Supply. Rugged switching MOSFETs for Class D in CH5. Under Voltage Protection at 10V. Over Voltage Protection at 16V. Optical Coupler Class “AB” +“D” Technology. Studio-Grade Bipolar Output Stage Transistors. Fully Adjustable 12dB / Octave Crossover with Differential Circuitry. Low Pass Filter: (CH1-CH4)40Hz –4KHz /(CH5)50Hz –250Hz. High Pass Filter: 15Hz – 4KHz. Subsonic Filter: 15Hz - 55Hz.

Full IC-Controlled Protection Circuitry. Remote Dashboard Subwoofer Control. Fully Adjustable 12dB Bass Equalizer. Mute and Delay Soft Start System. 8 Volt Preamp Circuitry. Status Mode LED Indicator. Minimum THD at Rated Power: < 0.05%. S / N Ratio: >90dB. Frequency Response: 15-35KHz. Damping Factor: >100@ 100Hz. 40 Amp x3. Dimensions: (W x H x L) 9'' x 2.4' x 18.6".

Rockville Db45 3200 Watt/800W Rms 4 Channel Amplifier Car Stereo Amp, Loud!!

ROCKVILLE
DB45
3.00 X 3.00 X 3.00 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Includes: Amplifier. Birth sheet with tested power. Owner’s manual. Mounting Screws. Warranty.

Features: Rockville dB45 3200 Watt/800 Watt Dyno-Certified RMS 4 Channel Amplifier Car Stereo Amp, Loud!!.

Dyno Certified RMS Power Ratings: (Certified Dyno Test / Less than 1 % THD) (Use these ratings when comparing with top brands such as Kicker, Rockford Fosgate, etc). - 2 Ohm: 200 Watts x 4 Channel <1% THD+N . - 4 Ohm:135 Watts x 4 Channel <1% THD+N. - 4 Ohm Bridged: 400Watts x 2 Channel<1% THD+N.

Peak: (Use these ratings when comparing with the top budget brands such as Boss, Power Acoustik, etc). - 2 Ohm: 800 Watts x 4 Channel. - 4 Ohm:540 Watts x 4 Channel. - 4 Ohm Bridged: 1600 Watts x 2 Channel. High-Speed MOSFET Power Supply. Under Voltage Protection at 10V. Over Voltage Protection at 16V. Tertiary Supplies Circuitry. Optical Coupler Class “AB” Technology. Studio-Grade Bipolar Output Stage Transistors.

Fully Adjustable 12dB / Octave Crossover with Differential Circuitry. Low Pass Filter: 50Hz - 3KHz. High Pass Filter: 15Hz - 1KHz. Full IC-Controlled Protection Circuitry. Fully Adjustable 12dB Bass Equalizer. Mute and Delay Soft Start System. 8 Volt Preamp Circuitry. Status Mode LED Indicator. Minimum THD at Rated Power: < 0.05%. S / N Ratio: >90dB. Frequency Response: 10Hz - 50KHz. Damping Factor: >150 @ 100Hz. 35 Amp*3 ATC Fuse. Dimensions: (W x H x L) 9" x 2.4" x 21.0"

#TOP4

Kicker Cxa300.4 4X75-Watt Four-Channel Full-Range Amplifier

KICKER
43CXA3004
15.00 X 9.50 X 4.00 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
HiFi-Soundconnection 9.74

Features

New Kicker 43CXA3004 300W 4-Channel Car Audio Power Amplifier Amp Stereo CX300.4

75W x 4 @ 14.4V

150W x 2 @ 14.4V, 4-Ohm bridged mono

600W @ 15.6V

Class AB

Rockville Krypton-M3 4000W Max/1000W Rms Mono 1 Ohm Car Amplifier Amp+Remote

ROCKVILLE
KRYPTON M3
18.30 X 10.40 X 4.00 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Audiosavings 9.74

Features

Features:. . Rockville KRYPTON M3 4000 Watt Peak and 1000w RMS Class D 1 Ohm Stable Mono Amplifier With Voltage Display. Dyno Certified RMS Power Ratings: (Certified Dyno Test / Less than 1 % THD) (Use these ratings when comparing with top brands such as Kicker, Rockford Fosgate, etc).

1 Ohm: 1000 Watts x 1 Channel <1% THD+N (71% efficient). 2 Ohm: 700 Watts x 1 Channel <1% THD+N (79% efficient). 4 Ohm: 400 Watts x 1 Channel <1% THD+N (84.5% efficient). Peak: (Use these ratings when comparing with great brands such as Boss, Power Acoustik, etc).

1 Ohm:4000 Watts x 1 Channel. 2 Ohm:2800 Watts x 1 Channel. 4 Ohm:1600 Watts x 1 Channel. Digital Voltage Display on Amp (Accurate within 0.15V). Power/Protect/Clip LED Indicators on the front panel. Power/Protect/Clip LED Indicators on Remote control.

Clip indicator on the bass remote allows you to quickly set any song to right before clipping in real time. High-Speed MOSFET Power Supply. Optical Coupler Class “D” Technology. Fully Adjustable 12dB / Octave Crossover with Differential Circuitry.

Low Pass Filter: 50Hz - 250Hz. Subsonic Filter: 15Hz - 55Hz. Phase Control Switch. Full IC-Controlled Protection Circuitry. Remote Dashboard Subwoofer Control. Fully Adjustable 12dB Bass Equalizer. Mute and Delay Soft Start System.

Rockville Krypton F2 2400W Peak/600W Rms 4 Channel Amplifier Car Stereo Amp

ROCKVILLE
KRYPTON F2
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Audiosavings 9.74

Features

Rockville KRYPTON F2 2400w Peak/600w Dyno-Certified RMS 4 Channel Amplifier Car Stereo Amp.

Dyno Certified RMS Power Ratings: (Certified Dyno Test / Less than 1 % THD) (Use these ratings when comparing with top brands such as Kicker, Rockford Fosgate, etc). 2 Ohm: 150 Watts x 4 Channels <1% THD+N. 4 Ohm: 100 Watts x 4 Channels <1% THD+N.

4 Ohm Bridged: 300 Watts x 2 Channel. Peak: (Use these ratings when comparing with the top budget brands such as Boss, Power Acoustik, etc). 2 Ohm: 600 Watts x 4 Channels. 4 Ohm: 400 Watts x 4 Channels. 4 Ohm Bridged: 1200 Watts x 2 Channels.

All channels on the amp have crossovers so they can each be used for subs or full range speakers or tweeters or midrange speakers. All channels on the amplifier are bridgeable. Digital Voltage Display on Amp.

Fully Adjustable 12dB / Octave Crossover with Differential Circuitry. Adjustable Subsonic Filter: 15Hz -40Hz (This filter is on the HPF knob). Adjustable Low Pass Filter: 40Hz – 4KHz. Adjustable Band Pass Filter: 15 Hz - 4 kHz (use both the HPF and LPF filter). Adjustable High Pass (Subsonic) Filter: 15 Hz - 4 kHz

#TOP7

Kicker Kxm1200.1 1200-Watt Mono Class D Marine Subwoofer Amplifier

KICKER
40KXM12001
16.00 X 12.00 X 5.00 Inches
7.15 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
A Sales 9.91

Features

KXM Series 1200 Watt Marine Subwoofer Amplifier

Continuous RMS Power [watts/channel] @ 14.4V, 2-Ohm mono

24dB/octave, variable 40-160Hz, low pass only;

variable to +18dB, centered 20-80Hz, variable Q 1-5

Remote Bass Control (included)

#TOP8

Kicker Kxma4004 Kxma400.4 4X100-Watt Four-Channel Full-Range Class D Amplifier

KICKER
44KXMA400.4
18.00 X 12.00 X 5.00 Inches
6.50 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
HiFi-Soundconnection 9.74

Features

New for 2017!

Gain Control With "Optimal Input" Indicator

FIT2 (Fail-Safe Integration Technology) Circuitry

Variable 24dB Crossover

DSP-Controlled Preamp

#TOP9

Kicker Ck4 4-Gauge Amplifier Kit With Kisloc Line Output Converter For Factory Radio Integration

KICKER
CK4+KISLOC
5.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Creative Audio 9.88

Features

Comes with 100% OFC Power Cable

Direct Connect Engineered to work well together with the highest current capacity possible.

Easy install thanks to Kicker Hyper-Flex technology

Contains Remote turn on wire, fuse and fuse holder.

K-Series RCA interconnects

Top 10 multichannel amplifiers Brands on Amazon

Here is the list of top-rated brands that were evaluated by PM.

Brand Count
Kicker 5
Rockville 4

Top 10 multichannel amplifiers Brands Pie Chart


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