Many believe that their vehicle’s OEM stereo has sufficient power, or that their new aftermarket stereo that puts out 50 watts per channel is enough for a great sounding system. But, the reality is that whether it’s an OEM system with ‘300 watts’ or an aftermarket unit with 50 per channel, most of wattage ratings are peak and don’t represent the true output of the system. For example, a 50 watt per channel aftermarket stereo might actually only be pumping around 15 to 20 watts to each of your speakers when all said and done.

To power your speakers (aftermarket or not) with the correct amount of power can mean a WORLD of difference to the performance of both subwoofers and speakers alike. You may have the highest performing speaker or subwoofer but without the power, it ultimately means nothing. Don’t let power be the bottleneck of your system. Get an amp that provides your speakers with the power they need to produce crisp and clear music, whether your using high performance component speakers, subwoofers or OEM equipment. And if you are going to add a subwoofer, an amp is an absolute necessity.

Here’s a list of 2014’s best rated series amplifiers for your car to help you match the ultimate amplifier to your car’s stereo, speakers or subwoofer.

#1 JL Audio Slash Series V3 Amplifiers (CarAudioNow’s Best Car Amplifier)

JL Audio Slash Series v3 Amplifiers review

Originating from one of JL’s most legendary and best-selling amplifiers, the Slash Series v3 amplifiers were built on upon the solid and successful platform that made history in automotive amplification. Tweaked, refined, and renewed, the v3 amps encompass some of JL’s latest technology and finest manufacturing materials. The monoblocks are 20% more powerful than previous generation amplifiers with a new patented Class D output circuitry. And the four-channel amplifier offers JL Audio’s patented Absolute Symmetry Class A/B output stage, offering a 75W x 4 output.
All Slash Series v3 models feature JL Audio’s R.I.P.S. (Regulated Intelligent Power Supply) technology. This system maintains a consisten power output over a wide range of battery voltages and load impedances. It automatically will adjust to maintain the amplifiers rated output at all times, no matter what the condition or input. And an Advanced Rollback Thermal protection feature keeps your music playing under the most climatically demanding conditions.The JL Audio Slash Series v3 amplifiers are sleek, sexy, powerful and continue to raise the bar in automotive audio equipment.

Amplifier Type Model Power Price
Monoblock 600/1V3 600 Watts x 4 RMS @ 4ohm $519.95
 
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Monoblock 1200/1V3 1200 Watts x 1 RMS @ 4ohm $869.99
 
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4-Channel 300/4V3 75 Watts x 4 RMS @ 4ohm $450.99
 
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#2 Audison Voce Series Amplifiers

Audison Voce Series Amplifiers Review

“Audison” or “audio” and “sonus” in Latin, has built a reputation for designing and manufacturing very high-quality, high-performance car audio products, many of which incorporate leading-edge technologies. And for the stereo enthusiasts who want to enter into the world of car audio through an amplifier of excellence, one of the best available products in its class, a perfect balance of size, versatility and power, is the Audison Voce Series Amplifiers. A direct descendant of the notable Thesis series amplifier, the Voce series now bring the legendary Thesis sound quality to a wider range of enthusiasts, as well as carries along some of the great features of the Thesis, including the ability to combine analog and digital technologies. Unfortunately (for now) the Audison Voce Series amps are only sold at your closest Audison brick-and-mortar provider, and for a hefty price. But none the less, they are among the greatest amplifiers on the market today.

Amplifier Type Model Power Price
Monoblock AV uno 700 Watts x 1 RMS @ 4ohm $1,499.00
2-Channel AV due 260 Watts x 2 RMS @ 4ohm $1,199.00
4-Channel AV quattro 120 Watts x 4 RMS @ 4ohm $1,399.00
5-Channel AV 5.1k 75W x 2 + 140W x 2 + 600W x 1 @ 4 ohm $1,599.00

#3 Rockford Fosgate Power Series Amplifiers

Rockford Fosgate Power Series Amplifiers Review

Rockford Fosgate has built a reputation for manufacturing high-quality, high-performing mobile audio equipment. Their Power Series car amplifiers are among their top amplifiers, built on a durable platform with an innovative and sleek-looking design and reliable, clean, and powerful performance.

The Power Series amps were designed and manufactured with several of Rockford Fosgate’s patented technologies. DTM (Tynamic Thermal Management) is their 3-stage thermal system that distributes forced air to evenly dissipate heat across the amp. A proprietary process called MEHSA allows heat to escape more efficiently from the MOSFET devices to the heatsink. And Differential Input reduces electrical distortion and interference that could be transferred by your input cables. This combination of proprietary technologies and fine-tuned features results in an amplifier with minimal distortion, incredible heat distribution and control, consistent high-power output, long-term reliability and most importantly high performance. The Rockford Fosgate Power Series amplifiers are highly regarded in the industry, and for good reason.

Amplifier Type Model Power Price
Monoblock R250X1 150 Watts x 1 RMS @ 4ohm $96.29
 
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Monoblock R500X1D 300 Watts x 1 RMS @ 4ohm $119.88
 
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Monoblock R750-1D 250 Watts x 4 RMS @ 4ohm $194.87
 
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Monoblock R1200-1D 400 Watts x 1 RMS @ 4ohm $236.80
 
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2-Channel R150X2 50 Watts x 2 RMS @ 4ohm $78.75
 
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4-Channel R250X4 40 Watts x 4 RMS @ 4ohm $107.01
 
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4-Channel R300X4 50 Watts x 4 RMS @ 4ohm $117.40
 
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4-Channel R400-4D 75 Watts x 4 RMS @ 4ohm $151.46
 
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5-Channel R600X5 50W x 4 @ 4ohm + 300W x 1 @2ohm RMS $231.38
 
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#4 Kenwood Excelon X Series Amplifiers

Kenwood Excelon X Series Amplifiers review

Compact, reliable, tough and quality sound is easiest way to define Kenwood’s eXcelon X Series amplifiers. These amplifiers incorporate all of the latest technologies in audio amplification, including audio tuning, crossover and equalizer settings and high voltage preouts. They have one of the smallest footprints in their class, allowing for easy installation in tight areas. But don’t let the compact size fool you, it’s class D design, an efficient heat dissipation design combined with an intelligent cooling system makes it an incredibly efficient amplifier that that can handle whatever you throw at it without distorting and overheating.

Amplifier Type Model Power Price
Monoblock X500-1 300 Watts x 1 RMS @ 4ohm $140.00
 
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4-Channel X450-4 60 Watts x 2 RMS @ 4ohm $149.00
 
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5-Channel X700-5 40W + 300W x 1 RMS @ 4 ohms $299.99
 
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And if you’re looking for an even smaller design, check out their XR Series (Reference Fit) amplifiers. A high-density mount circuit board in conjunction with an enhanced air cooling and heat control systems allowed Kenwood to create an incredibly compact design amplifier that blows most standard-sized amplifiers away.

Amplifier Type Model Power Price
Monoblock XR600-1 400 Watts x 1 RMS @ 4ohm $169.99
 
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4-Channel XR400-4 74 Watts x 4 RMS @ 4ohm $299.99
 
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5-Channel XR900-5 60W x 4 + 400W x 1 RMS @ 4ohm $499.99
 
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#5 Alpine PDX Series Amplifiers

Alpine PDX Series Amplifiers Review

Also among the more compact designed amplifiers, the PDX is Alpine’s vision of a versatile amplifier that packs a punch. A Class-D amp on a mere 2” tall frame, Alpine made this amp design capable with an effectively heat distribution system that even disperses heat to its heatsinks to cool the entire stack. But the stand-out feature on the PDX amplifier is it’s control and connector design. Easy pop out connections make installing and removing the amplifier a breeze, and it’s front-mounted controls make tuning and adjusting the sound after installation easier than ever.

Amplifier Type Model Power Price
Monoblock PDX-M6 600 Watts x 1 RMS @ 4ohm $304.85
 
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Monoblock PDX-M12 1200 Watts x 1 RMS @ 4ohm $504.89
 
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4-Channel PDX-F4 100 Watts x 4 RMS @ 4ohm $316.59
 
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4-Channel PDX-F6 150 Watts x 4 RMS @ 4ohm $433.60
 
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#6 Infinity Kappa Series Amplifiers

Infinity Kappa Series Amplifiers Review

With an improved design from earlier versions, the Infinity Kappa Series amplifiers deliver the highest performance, power and efficiency on their most compact platform to-date. A Class-D design and thermal protection makes the these amplifiers thermally efficient and safe, allowing you to push them to their max for as long as you want without having to worry about failure. A 1 3/4” platform design allows these amps to fit into the tight areas in your vehicle that many amplifiers won’t. And if you want to disconnect the amplifier, move it, or remove it? No problem with it’s detachable power/ground plug.

Amplifier Type Model Power Price
Monoblock Kappa One 500 Watts x 1 RMS @ 4ohm $229.95
 
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4-Channel Kappa Four 125 Watts x 4 RMS @ 4ohm $259.95
 
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5-Channel Kappa Five 50W x 4 + 200W x 1 RMS @ 4ohm $258.89
 
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