10 Best 4 Channel Amplifier Car Audio in The UK

Last updated on 02/08/2025
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Best Choice
1
9.9
Exceptional
Pioneer GM-D9704 1600W Class D 4-Channel Car Amplifer, With Bass Remote
Pioneer
Pioneer GM-D9704 1600W Class D 4-Channel Car Amplifer, With Bass Remote
Why We Love It
  • Powerful 1600W combined max power.
  • Versatile 4 channel Amplifier.
  • Compact with 302 x 215 x 60mm dimensions.
Main Highlights
  • 4 channel Amplifier
  • Wattage RMS (4Ω <=1% THD+N) 4 x 130W
  • Wattage RMS (2Ω <=1% THD+N) 4 x 200W
  • 302 x 215 x 60 (mm)
  • 1600W combined Max power
9.9
Exceptional
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Best Value
2
9.8
Exceptional
EDGE DBX Series 4 Channel 1200 watts Amplifier
EDGE
EDGE DBX Series 4 Channel 1200 watts Amplifier
Free Shipping
Why We Love It
  • Rich and warm sound.
  • Greater tune-ability options.
  • Efficient cooling system.
Main Highlights
  • Class AB Multichannel Amplifier, Delivers a rich and warm sq sound
  • Built in LPF and HPF crossover offer greater tune-ability and set up options
  • High level input with auto-sense turn on. No need to use remote turn on wires or line output convertors
  • RMS @ 4 Ohms Stereo: 4 x 100 watts, 2 Ohms Stereo: 4 x 150 watts, RMS @ 4 Ohms Mono: 2 x 300 watt
  • Unique T bar heatsink fins and internal fans allow for efficient cooling on the heatsink, keeps amps cool and running at high volumes
9.8
Exceptional
Amazon Logo
3
9.7
Exceptional
VIBE Audio POWERBOX100.4M-V0 – 4 Channel Class D Amplifier
VIBE
VIBE Audio POWERBOX100.4M-V0 – 4 Channel Class D Amplifier
Free Shipping
Why We Love It
  • Class D boosts sound quality.
  • Deltabox ensures seamless connectivity.
  • Auto Sense for easy use.
Main Highlights
  • Class D Topology
  • Deltabox Connectivity
  • OPTISOUND Advanced OEM integration
  • VIBE Sound Studio Active crossovers
  • Auto Sense Turn on
9.7
Exceptional
Amazon Logo
4
9.6
Superb
Pioneer GM-A4704 4-Channel Bridgeable Amplifier (520W)
Pioneer
Pioneer GM-A4704 4-Channel Bridgeable Amplifier (520W)
Why We Love It
  • Powerful 520W for immersive sound.
  • Versatile with different power configurations.
  • Compact design for easy installation.
Main Highlights
  • 520w 4 Channel Amplifier Bridgeable
  • Package Dimensions : 30.0 L x 20.0 W x 20.0 H (centimetres)
  • RMS: 4 x 40W (4 Ω) or 2 x 130W (4Ω bridged) or 4 x 65 W (2 Ω)
  • Maximum power input - 520W (Bridged) or 2 x 80W (4 Ω) or 4 x 130 W (2 Ω)
9.6
Superb
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5
9.6
Superb
Pioneer GM-D1004 Easy to install, 4-channel car amp with TVC concept and input sensor (400W) , Black
Pioneer
Pioneer GM-D1004 Easy to install, 4-channel car amp with TVC concept and input sensor (400W) , Black
Free Shipping
Why We Love It
  • Superior sound with wide frequency response.
  • Effortless setup with automatic switch-on.
  • Maximized performance, minimal distortion.
Main Highlights
  • 4 channels, bridgeable
  • Plug & Play.Distortion < 0.05
  • Connection also via speaker outputs of the OEM radio with automatic switch-on
  • Frequency response: 10-40,000 Hz
9.6
Superb
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6
9.5
Superb
Alpine Electronics 4 Channel Amplifier
Alpine
Alpine Electronics 4 Channel Amplifier
Why We Love It
  • Ultimate sound control options.
  • Exceptional bass enhancement.
  • Promises powerful performance.
Main Highlights
  • Amplifier type: Class-A/B
  • Channel design: 4/3/2 channel
  • Thermal control: Thermal management control
  • Power supply: DC-DC PWM power supply
  • Power supply design: Mosfet power
9.5
Superb
Amazon Logo
7
9.3
Superb
JBL Concert A704 4-Channel Car Amplifier Class AB - Car Power Amplifier with 4 x 70 Watt RMS - 1000 Watt Tip for 4 Car Speakers, or 2 Plus 1 Subwoofer or 2 Speakers
JBL
JBL Concert A704 4-Channel Car Amplifier Class AB - Car Power Amplifier with 4 x 70 Watt RMS - 1000 Watt Tip for 4 Car Speakers, or 2 Plus 1 Subwoofer or 2 Speakers
Why We Love It
  • Powerful, immersive concert-quality sound.
  • Dual class reliability and performance.
  • Scrutinized under rigorous testing.
Main Highlights
  • Concert sound for your car – the JBL Concert A704 power amplifier offers real powerful 280 watt RMS and 1000 watt peak JBL sound experience into your car hifi set and is a great upgrade for your car sound system
  • The high-performance audio amplifier of class AB combines the advantages of class A and B and is equipped with high-quality audio capacitors and power MOSFET's for very high sound quality and is therefore not only powerful, but also very reliable
  • Concert series amplifiers have adjustable high/low pass crossover frequency that allows you to adjust the frequency from 40 Hz to 400 Hz depending on your individual music taste
  • Auto power on: the high level signal input will automatically turn on the amplifier as soon as DC voltage is detected (>2.5V) and the line level signal input turns on the amplifier as soon as a +12V signal is detected.
  • RELIABLE PERFORMANCE: Harman Kardon Amplifiers must go through a rigorous testing process that would destroy an unstable car power amplifier. JBL exposures them deepest cold, high heat and shocks, irradiates them with UV light and lets them run at full power for days.
9.3
Superb
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8
9.1
Superb
Save 22%
VIBE Powerbox 4 Channel Micro Amplifier - 4 x 65W
VIBE
VIBE Powerbox 4 Channel Micro Amplifier - 4 x 65W
22% Off
Why We Love It
  • Powerful amplification in compact size.
  • Auto-sense for convenience.
  • Efficient Class D topology.
Main Highlights
  • Powerbox 65.4 Micro, 4 Channel Amplifier.
  • 65 Watts RMS @ 4 Ohms. 520 Watts Max.
  • High Level Input. High Pass Filter. Auto Sense: allows the amplifier to turn on and off without the need for a remote turn on wire.
  • Approx Szie: Height 1.5" (37mm) x Width 7.4" (187mm) x Depth 3.2" (82mm).
  • Crossover Type: HP / FULL. Crossover Frequency: 80Hz. Topology: Class D.
9.1
Superb
Save 22%
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9
8.9
Excellent
Save 3%
Pioneer GM-A5702 2-Channel Bridgeable Amplifier (1000W) with Bass Boost , black
Pioneer
Pioneer GM-A5702 2-Channel Bridgeable Amplifier (1000W) with Bass Boost , black
3% Off
Why We Love It
  • Compact and easy to store.
  • Lightweight for easy handling.
  • Perfectly dimensioned for convenience.
Main Highlights
  • Item Package Weight: 2.68 kg
  • Item Package Length: 11.0cm
  • Item Package Width: 27.0cm
  • Item Package Height: 43.0cm
8.9
Excellent
Save 3%
Amazon Logo
10
8.9
Excellent
Kenwood eXcelon X302-4 Class D 4 Channel Power Amplifier
KENWOOD
Kenwood eXcelon X302-4 Class D 4 Channel Power Amplifier
Why We Love It
  • High power output capacity.
  • Flexible speaker level input.
  • Advanced filter customization.
Main Highlights
  • 4 - Channel Power Amplifier
  • 75 Watts RMS X 4 At 2 Ohms (50 Watts RMS X 4 At 4 Ohms)
  • Speaker Level Input
  • Variable High / Low Pass Filters
8.9
Excellent
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We scanned 1493 products

We reviewed these offers relevant to the 4 Channel Amplifier Car Audio within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like Pioneer, EDGE, VIBE, Alpine, JBL, KENWOOD, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.
For the best 4 Channel Amplifier Car Audio in the market, we considered we took a deep dive into 7466 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that:

  • The clear winner of our analysis is Pioneer GM-D9704 1600W Class D 4-Channel Car Amplifer, With Bass Remote. We love many things about this product by Pioneer. What sets it apart from the competition is Powerful 1600W combined max power, Versatile 4 channel Amplifier, Compact with 302 x 215 x 60mm dimensions.
  • The best value product for most shoppers and where user satisfaction is continuously the highest is EDGE DBX Series 4 Channel 1200 watts Amplifier by EDGE based on online reviews by bloggers, experts and online shoppers.
  • The biggest bargain at the moment for 4 Channel Amplifier Car Audio and the best cost-to-value ratio is VIBE Powerbox 4 Channel Micro Amplifier - 4 x 65Wat VIBE with a 22% discount.
  • Our list of the best 4 Channel Amplifier Car Audio is updated regularly to reflect new releases and changes in product availability, so be sure to check back often for the latest rankings and discounts.