Top 10 Best Car Amplifiers Under $300 Of 2022: Best Reviews Guide

Looking to upgrade your car's sound? Maybe you want to get more power or more headroom. Or maybe you want a new car sound system with full-range sound. Whatever you need, we've got it.

The best car amplifiers you can buy for under $300. We've tested and reviewed the best of the best.

Car Amplifiers under $300. Shop for high-performance car amplifiers including Class D, Class AB, and many others.

Welcome to a great selection of amplifiers, speaker systems, and home theater equipment. We have the best brands at the best prices.

Review: Top 10 Best Car Amplifiers under $300

Lisa Moreau By, Lisa Moreau
  • RCA Preamp Line Output. 8 Volt Preamp Circuitry. Status Mode LED Indicator. Minimum THD at Rated Power: <0.1%. S / N Ratio: >90dB. Under Voltage Protection at 10V. Over Voltage Protection at 16V.
  • 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: 1500 Watts x 1 Channel <1% THD+N. - 4 Ohm: 900 Watts x 1 Channel <1% THD+N.
  • 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.
  • EASILY TIE INTO YOUR SYSTEM: Easily tie into OEM audio systems that do not offer RCA output to maximize aftermarket amplifier power
  • MINIMAL DISTORTION: Maximum low voltage signal from the source unit comes into the amplifier circuit with minimal distortion
  • SECURE CONNECTIONS: Nickel-plated, high-temperature, impact-resistant design with hex screw terminals that allow for secure connections
  • MOSFET pulse width modulated power supply and proprietary heat dissipation design will ensure the amplifier for car subwoofers runs cool for even the most demanding playlists
  • Car audio amplifier with 2000 watts RMS power at 1-ohm load (14.4v); 1200 watts RMS at 2-ohm load (14.4v); 650 watts RMS at 4-ohm load (14.4v); Frequency response: 0 to 320 Hz (Bass Knob Included)
  • Small footprint and compact chassis makes this mono amplifier easy to install in any vehicle or car audio application; but don’t let the size fool you, this 2000 watt amplifier absolutely pounds
  • Famous Rockford Fosgate build quality with a full 1-year warranty when purchased from an authorized Rockford Fosgate reseller
  • Designed for subwoofers, a variable infrasonic filter and remote level control allows you to tune the bass for the desired level for the music
  • Featuring C.L.E.A.N. circuitry to help you adjust your gain settings, a P.O.W.E.R. Supply that generates more power as voltage increases, and integrated Punch EQ that corrects for acoustic deficiencies while delivering up to 3X the bass
  • Phase Shift: 0° - 180°
  • Signal to Noise - >95dB. Frequency Response - 10Hz - 250Hz. Bass Boost - 0dB - 10dB. Subsonic Filter - 15Hz - 35Hz
  • 3000W RMS 1 Ohm Mono Car Subwoofer Amplifier
  • Product Dimensions: 9.2" x 2.3" x 18.3" (233 x 59 x 465mm)
  • This listing contains: (1) V1200.5 2400 Watt 5 Channel Class A/B Amplifier (1) Remote Bass Knob with Connector cable
  • 4 x 75W + 1 x 300W @ 4 Ohms 4 x 150W + 1 x 600W @ 2 Ohms 2 x 300W + 1 x 300W @ 4 Ohm N/A + 1 x 600 @ 2 Ohm
  • On-board Punch EQ with +18dB boost at 45Hz. Input Sensitivity: 150 mV to 4 V
  • Onboard 12dB/octave LP/HP/AP crossover & Infrasonic filter. Power Wire Gauge- 4 AWG. Power Input Connector-Screw Terminal. Suggested Alternator-75 A
  • 300 Watts x 1 @ 4-Ohms, 500 Watts x 1 @ 2-Ohms, Frequency 20Hz to 250Hz +/-1dB


Car Amplifier Price


How to Choose The Best Car Amplifiers under $300 for You?

Fortunately, amplifiers are not too hard to understand, so let me walk you through choosing the right amp for your cars speakers. Knowing reputable brands of car amps certainly helps in choosing the right amplifier for your car. You will almost always want to get high-quality car amps for installing aftermarket speakers and subwoofers. 

If you are upgrading your cars audio system with higher-quality speakers, you do not want to be dependent on the amps found in your cars factory head unit to power those speakers. Without the amplifier, your vehicle would not be capable of handling the wattage needed to power any aftermarket speakers or subwoofers. 

You will need to find amplifiers with sufficient wattage to produce the best audio from the speakers. If you want the best sound from your car stereo, it is critical you do not power down the speakers. If you want to get the best quality sound, you should never underpower. 

For instance, if you had a 1,000-watt amp and four speakers requiring 350-watts each, then the amp could not deliver the necessary power, and your speakers could fail. For example, if an amplifier has a 100-watt x 4-channel RMS output, this will mean you need one speaker with a 100-watt RMS rating (or 4 speakers in that case, each with a 100-watt rating). It would be best if you could pick out your speakers first, and from the specifications of the last one, you could easily determine the minimal power required by the amplifier. Then, I will show how you can pair your amplifier to your speakers, based on the wattage, the RMS vs. peak, speaker efficiency, and whether or not you have any extra subwoofers. 

Whether you are starting out fresh, or upgrading; or looking to power component speakers or larger subwoofers, choosing the right amp is the key to your success. Choosing the best amplifier for your vehicle, home sound system, or professional audio application can be challenging. An amplifier that is both powerful enough and the right fit for your other components will have a dramatic impact on the sound coming out of your cars stereo. Beyond that, if you wanted to get more than two sets of speakers and two subwoofers, you will need to go for more than just an amplifier and reconfigure the way you configure your cars audio system. 

The Rockford Fosgate R500X1D takes your cars stereo system and audio quality to another level thanks to its rating of 500.0 Watts per channel at 2.0 Ohms RMS. This ultra-powerful 5-channel, D-Class, automotive sound power amp is capable of producing 100 Watts x 4 + 550 Watts in 2 ohms. This BOSS Audio R1100M Riot is a best 4-channel car amp which comes with a peak output of 1100 Watts in 2-Ohms and a peak output of 550 Watts in 4-Ohms. Now you know the amplifiers RMS Power rating is a more accurate measure of the output power, you can use this as a tool for properly matching an amplifier with the speakers(s) and subwoofers that you wish to use.

1 ratings
Lisa Moreau By, Lisa Moreau