Best Mini Car Amplifiers Reviews

Most people who are looking to upgrade their factory car audio system aren’t sure where to start and often go with the most visible option first—a new CD receiver. While a new aftermarket receiver can relatively enhance the sound quality you experience in your car, it’s the speakers and amplifiers that are the key to achieving and filling your vehicle with audiophile-grade sound.

It must be noted that amplifiers aren’t just for seasoned audiophiles and bassheads who like to be heard miles away. In reality, an external amplifier — no matter how small it is will provide cleaner sound, more power and better performance.

We’ve reviewed a ton of different car amps on this site before. In today’s post, we’ll be reviewing some of the best compact car amplifiers in the market. So, even if don’t have enough space inside your vehicle to accommodate a large amplifier, you won’t have to feel left out, because these mini car amplifiers can get the job done just fine.

Compact car amplifiers feature thin enclosure and can easily fit into tight spots. Their relatively easy installation process and tiny size make them suitable for vehicles with limited space such as compact hatchbacks and sport cars.

Although these small car amps aren’t powerful enough to drive power-hungry subs, they’ll undoubtedly add some depth and punch to your music even in a stock situation.

3 Best Compact Car Amplifiers Reviews

1- Rockford Fosgate Punch PBR300X4 Review

  • Suitable for powersports application
  • Boosted Rail amp technology
  • Dynamic Thermal Management cooling system
  • Selectable high- and low-pass filters (80 Hz, 12 dB/octave)
  • Differential-balanced inputs eliminate noise from your vehicle's electrical system
  • Preamp and speaker-level inputs

Dimensions  6-15/16"W x 1-9/16"H x 4-5/16"D
Number of channels 4
Frequency range 20-20k Hz
Power Handling  75 watts RMS x 4 at 4 ohms
Bridgeable No
Amplifier Class BR

Rockford Fosgate PBR300X4 Punch BRT 300-Watt Ultra Compact 4-Channel AmplifierRockford Fosgate is one of the most recognized brands within the car audio community. They’re a great company with a solid reputation for quality, and it really shows. They offer a wide variety of car audio components including subwoofes, speakers, amplifiers and signal processors.

The PBR300X4 is one of the best compact car amplifiers that Rockford Fosgate has to offer. This 4 channel amp delivers 75 watts RMS to each of your front and rear speakers, giving you the power for waking up your speakers and making them fill your listening space with great-sounding music. The downside, however, is that this 4 channel amp is non-bridgeable.

This amp features Rockford Fosgate Boosted Rail (BR) amp technology which uses advanced capacitors and high-speed circuitry to boost the amp’s power supply voltage, when needed, so it can handle musical peaks without giving out. This technology allows for a powerful small amplifier that can fit almost anywhere, making the PBR300X4 suitable for cars, motorcycles, ATVs and hybrid-electric vehicles.

Rockford Fosgate PBR300X4 is a very well-designed amp. Anything from its input blocks to mounting screws scream quality. It’s featured with speaker-level inputs with signal-sensing turn-on, allowing you to hook this amp up to almost any system.

This amp comes with selectable high- and low-pass filters. In terms of frequency response, you are looking at a pretty standard 20 Hz to 20 kHz.

As far as thermal protection is concerned, this amplifier features an extruded aluminum heat sink which in combination with Rockford Fosgate’s heat management technology ensure reliable, long-term play.

Rockford Fosgate PBR300X4 was designed specifically for space limited applications in need for four-channel amplification. It’ll make a night and day difference in terms of sound quality, however, it’s not really something that seasoned audiophiles would use in their main systems.

2- Kenwood KAC-M3004 Review

  • Class D amp technology
  • Conformal-coated circuit board — suitable for power sports and marine applications
  • Variable high- and low-pass filters (50-200 Hz, 12 dB/octave)
  • Preamp and speaker-level inputs

Dimensions  7-5/8"W x 1-13/16"H x 3-7/8"D
Number of channels 4
Frequency range 20-20k Hz
Power Handling 
  • 50 watts RMS x 4 at 4 ohms
  • 75 watts RMS x 4 at 2 ohms
  • 150 watts x 2 bridged at 4 ohms
Bridgeable No
Amplifier Class D

Kenwood KAC-M3004 compact 4 channel amplifier reviewKenwood is another well-established car stereo brand that offers quality car audio component at reasonable prices. We’ve reviewed a ton of Kenwood products including speakers, receivers, and amps on this site before, and truth be said, kenwood makes quality, top-notch components.

The KAC-M3004 is one of the best compact car amplifiers in the Kenwood KAC series of amps. This 4-channel car amp will power up the music in your vehicle with 50 watts RMS per channel at 4 ohms. Or, you can switch it to 2 channel mode and send up to 150 watts RMS each to a pair of subs, or a pair of power hungry component speakers.

This mini car amplifier uses class D circuitry design which makes it quite efficient. Its conformal-coated circuit board makes it suitable for a variety of applications including cars, motorcycle, ATVs, power sports as well as marine applications.

This compact 4 channel amp has variable high- and low-pass filters so you can get a well-balanced sound from your system. It also has preamp and speaker-level inputs which lets you hook this amp up to almost any car audio system.

All in all, the Kenwood KAC-M3004 is a great little amp! It’s super compact and great for tight spaces. It was not designed to be the loudest and most powerful amp, but it’s just right for those who want something a bit more at an affordable price.

3- Pyle PLA2200 Review

  • Variable high-pass filter (40-250 Hz)
  • Variable low-pass filter (40-250 Hz)
  • Subsonic filter (10-100 Hz)
  • Switchable Bass Boost (0 to +18 dB)
  • Soft Start Turn-on circuitry
  • 2/1 channel operation
  • Slim design for easy mounting and installation
  • Anti-Thump turn-on
  • Remote turn on and off
  • Preamp RCA outputs to daisy chain multiple amps
  • 3-Way System Protection circuitry (thermal, overload, and speaker short protection)
  • Heavy duty aluminum alloy heatsink for extreme heat dissipation
  • Gold-plated RCA level inputs
  • Gold-plated screw terminals
  • Input sensitivity: 200mV-6V

Dimensions  15-3/4"L x 10-5/8"W x 1-7/16"H
Number of channels 2
Frequency range 15-30k Hz
Power Handling 
  • 80 watts RMS x 2 at 4 ohms
  • 140 watts RMS x 2 at 2 ohms
  • 160 watts x 1 bridged at 4 ohms
Bridgeable Yes
Amplifier Class D

Pyle PLA2200 2-Channel mini amplifier reviewIf you’re on tight budget and looking for cheap small car amplifier that doesn’t cost an arm and a leg, then Pyke PLA2200 is a decent option to consider. At most retailers, this 2 channel amp can be found for under $50.

Pyle PLA2200 is an entry level amplifier. It can deliver up to 80 watts per channel at 4 ohms, 140 watts at 2 ohms, and up to 160 watts when it’s bridged.

This isn’t the most powerful amp out there, however it’s good deal for the buck. It’s very thin and it’ll easily go under a seat or behind one. It’ll perform well as long as you’re keeping it in its spec range .

This mini car amp comes with variable high- and low-pass filters, as well as subsonic filter. It also has a switchable bass boost (0 to +18 dB) which lets you apply some extra low-end punch.

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