Best 4 Channel Car Amplifiers In September 2026

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With the number of alternatives available on the market, getting the right one could sometimes be a difficult task.. That’s why our platform is dedicated to product testing and coming up with this list of top 10 Best 4 Channel Car Amplifiers. Having done thorough research on this topic, we hope that our list will help you find the one you need!

To help you in your search, we have completed this list of the Best 4 Channel Car Amplifiers.

Top Rated Best 4 Channel Car Amplifiers Of 2026

Rank	Product Name	Score
1	BOSS Audio Systems R1004 4 Channel Car Amplifier - 400 Watts, Full Range Buy Now	9.7 Buy Now
2	Blaupunkt 1500W 4-Channel, Full-Range Amplifier Buy Now	9.5 Buy Now
3	Crunch PowerDriveX 1000 Watt 4 Channel Exclusive Blue A/B Car Stereo Amplifier Buy Now	9.1 Buy Now
4	BOSS Audio Systems AR2400.4 4 Channel Car Amplifier - 2400 Watts, Full Range Buy Now	8.8 Buy Now
5	Hifonics ZRX1016.4 Zeus Car Audio Amplifier, 4-Channel 1000-Watt Buy Now	8.6 Buy Now
6	Planet Audio AC800.4 4 Channel Car Amplifier - 800 Watts, Full Range, Class Buy Now	8.3 Buy Now
7	New Crunch PX-1000.4 4 Channel 1000 Watt Amp Car Stereo Amplifier + Wiring Buy Now	8.1 Buy Now
8	Planet Audio AC1200.4 4 Channel Car Amplifier - 1200 Watts, Full Range, Class Buy Now	7.8 Buy Now
9	Soundstream ST4.10000D Compact 4-Channel Car Amplifier 90WX4 - ST4.1000D Buy Now	7.5 Buy Now
10	Rockville dB45 3200 Watt/1600w RMS 4 Channel Amplifier Car Stereo Amp, Loud!! Buy Now	7.2 Buy Now

1. BOSS Audio Systems R1004 4 Channel Car Amplifier - 400 Watts, Full Range

• Low & high level inputs - a low level (rca) input is measured in voltages. a high level (+/- wire) input is measured in wattages. both essentially carry signal from your receiver to your amplifier to your speakers
• Specs - dimensions: 7.8 x 9 x 2, weight: 3.1 lbs.
• Class a/b topology - class a amplifiers have enormous amount of current flowing through its output transistors with no audio signal. class b amplifiers have no current flowing through its outputs with no audio signal
• Power - 100 watts max x 4 @2-ohms, 50 watts max x 4 @4-ohms
• Full range - with a full range amplifier you not only have the option to run your speakers, but also your subwoofers
• Variable gain control - the gain control is not for adjusting volume. it simply adjusts the amount of signal that is coming from your receiver and going to your amplifier

2. Blaupunkt 1500W 4-Channel, Full-Range Amplifier

• This slim amplifier fits perfectly into any trunk so you can easily connect it to your stereo system
• Optimized 150-watt rms output and a max power output of 1500 watts, you can give your music a huge boost in power that will have you and your passengers partying while on the road
• 1500w maximum power full-range amplifier

3. Crunch PowerDriveX 1000 Watt 4 Channel Exclusive Blue A/B Car Stereo Amplifier

• 1000 watt 4 channel powerdrivex series class ab car amplifier
• Low level rca inputs and outputs
• Low noise pre amplifier
• Maximum low voltage signal from the source unit comes into the amplifier circuit with minimal distortion
• Highest sound quality connection

4. BOSS Audio Systems AR2400.4 4 Channel Car Amplifier - 2400 Watts, Full Range

• Bridgeable: dramatically increase the power output to you speakers and subwoofers by connecting two amplifier channels
• Class a/b topology: class a amplifiers have enormous amount of current flowing through its output transistors with no audio signal. class b amplifiers have no current flowing through its outputs with no audio signal. efficiency is the name of the game
• Full range: with a full range amplifier you not only have the option to run your speakers, but also your subwoofers
• Power: 600 watts max x 4 @2-ohms, 300 watts max x 4 @4-ohms, 1200 watts max x 2 bridged @4 ohms
• Variable gain control: the gain control is not for adjusting volume. it simply adjusts the amount of signal that is coming from your receiver and going to your amplifier
• Warranty: boss audio systems provides a powerful 6 year platinum online dealer so long as the purchase is made through . we strongly encourage professional installation of this product to ensure proper and safe functionality

5. Hifonics ZRX1016.4 Zeus Car Audio Amplifier, 4-Channel 1000-Watt

• 4x250w
• 2x500w
• Car amp

6. Planet Audio AC800.4 4 Channel Car Amplifier - 800 Watts, Full Range, Class

• Class a/b topology - class a amplifiers have enormous amount of current flowing through its output transistors with no audio signal. class b amplifiers have no current flowing through its outputs with no audio signal. efficiency is the name of the game
• Full range - with a full range amplifier you not only have the option to run your speakers, but also your subwoofers
• Bridgeable - dramatically increase the power output to you speakers and subwoofers by connecting two amplifier channels
• Variable gain control - the gain control is not for adjusting volume. it simply adjusts the amount of signal that is coming from your receiver and going to your amplifier
• Power - 200 watts max x 4 @2-ohms, 100 watts max x 4 @4-ohms, 400 watts max x 2 bridged @4 ohms
• Warranty - planet audio provides a powerful 6 year platinum online dealer warranty so long as the purchase is made through amazon.com. we strongly encourage professional installation of this product to ensure proper and safe functionality

7. New Crunch PX-1000.4 4 Channel 1000 Watt Amp Car Stereo Amplifier + Wiring

• Crunch px 1000.4 4 channel car amplifier
• 4 ohms: 4 x 125 watts
• 2 ohms: 4 x 250 watts
• Power:
• Mono bridged @ 4 ohms: 2 x 5000 watts

8. Planet Audio AC1200.4 4 Channel Car Amplifier - 1200 Watts, Full Range, Class

• Full range class a/b, mosfet power supply
• High and low level inputs
• Frequency response:20 hz to 20 khz 1 db
• Fixed high pass crossover, variable low pass crossover, variable bass boost.6 year platinum dealer warranty
• 1200 w max power, 4 channel 225 w x 4 rms @ 2 ohm 113 w x 4 rms @ 4 ohm 450 w x 2 rms bridged @ 4 ohm

9. Soundstream ST4.10000D Compact 4-Channel Car Amplifier 90WX4 - ST4.1000D

• Mosfet power supply
• Variable high- and low-pass filters (35-250 hz, 12 db/octave)
• 250 watts x 2 bridged at 4 ohms
• 90 watts rms x 4 at 4 ohms (125 watts rms x 4 at 2 ohms)
• Preamp and speaker-level inputs

10. Rockville dB45 3200 Watt/1600w RMS 4 Channel Amplifier Car Stereo Amp, Loud!!

• 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 - 250hz. high pass filter: 60hz - 1.2khz.
• Rms power ratings: (use these rms ratings when comparing with great brands such as hifonics, earthquake, soundstream, etc). 2 ohm: 400 watts x 4 channel. 4 ohm: 270 watts x 4 channel. 4 ohm bridged: 800 watts x 2 channel. peak: (the amount of power the amplifier can produce for a split second at the loudest part of a song. 2 ohm: 800 watts x 4 channel . 4 ohm:540watts x...
• Rockville db45 800watt/400 watt rms class ab 2 ohm car stereo amplifier with optical coupler technology. 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: 200 watts x 4 channel <1% thd+n. 4 ohm:135 watts x 4 channel <1% thd+n. 4...
• Includes: amplifier. birth sheet with tested power. owners manual. mounting screws. warranty.
• 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.