Best 6X8 Car Speakers to Buy In 2018


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Looking to replace or upgrade your car's factory speakers? In most cases, the OEM speakers that come with your car are made from low cost, low quality materials and although they may sound good, replacing them with a pair of one of the Best 6×8 car speakers will significantly improve the depth, clarity and overall sound of your car's stereo.
6″ x 8″ speakers are commonly used in Ford, Mazda, and Chrysler vehicles (enter your vehicle's information at Metra to check which size speakers your car has).

Here is a list of this year's top rated and reviewed 6 x 8 inch component car speakers to help you choose the best products for your car's stereo:

Our Rank6x8 SpeakerSpeaker TypePower HandlingFrequency ResponsePrice
1.JL Audio C5-570X2 WayRMS: 75 Watts
Peak: 225 Watts
48 - 25k Hz$$$
2.Rockford Fosgate Power T16822 WayRMS: 80 Watts
Peak: 160 Watts
55 - 22k Hz$$
3.Alpine SPR-682 WayRMS: 100 Watts
Peak: 300 Watts
63 - 29k Hz$$
4.Infinity Kappa 682.11CF2 WayRMS: 100 Watts
Peak: 300 Watts
40 - 25k Hz$$
5.Kicker 40CSS6842 WayRMS: 75 Watts
Peak: 225 Watts
40 - 21k Hz$$
6.Polk Audio MM5712 WayRMS: 90 Watts
Peak: 200 Watts
38 - 25k Hz$$

How We Tested

To compile our list, CarAudioNow combined several reviews across the industry with first-hand tests. There are many criteria that we take into consideration when rating and reviewing each speaker, including:

  • Style (Looks, Design)
  • Power Ratings (Peak, RMS)
  • Price
  • Quality (Materials used, manufacturer, etc)
  • Online Reviews (From multiple vendors such as Sonic Electronix, Crutchfield, Amazon and more)

The result from our combination of sources and testing is a list of the top rated and reviewed list of speakers. And in addition to our compilation of best rated products, CarAudioNow also provides multiple comparisons of prices from vendors to try to get you the best price for all of your products. But in the end, the best speaker is one that meets your specific needs and is compatible with your car.

Best 6×8 Inch Car Speakers List

Quick Stats

  • 2 way 5×7 / 6×8 coaxial system
  • Frequency Range: 48 – 25k Hz
  • Power handling (RMS): 75W

Price Comparison $449.95
4 new from $449.95
BUY IT $529.95 BUY IT $529.99 BUY IT
Last Amazon price update was: November 19, 2018 5:37 am

JL Audio C5-570X Quick Review

JL Audio's C5-570x 6″ x 8″/5″ x 7″ speakers are an excellent choice for a well-rounded, full-range and smooth sounding speaker. Utilizing JL's enormous engineering and Research and Development resources, these 6″ x 8″s were designed to produce dynamic and balanced sound under the harshest of conditions. With features like a mineral filled polypropylene cone with butyl rubber surround and adjustable external crossovers, you can be sure that these woofers will scream only the clearest and fullest music. And although there may be many less expensive products out there, there's few others that make a bigger difference in the sound of your system.

Quick Stats

  • 2 way 6×8 coaxial system
  • Frequency Range: 55 – 22k Hz
  • Power handling (RMS): 80W

Price Comparison $63.51
11 new from $54.87
5 used from $52.88
BUY IT $119.99 BUY IT $119.99 BUY IT
Last Amazon price update was: November 18, 2018 10:28 pm

Rockford Fosgate Power T1682 Quick Review

Rockford Fosgate's Power T1682 was designed to perform, built for the audio enthusiast. It's cone is made of lightweight polypropelyne that's reinforced with carbon fiber to minimize flex and maximize precision. And, it's built with Rockford Fosgate's VAST™ technology, which gives an increased woofer size for improved lower frequencies without increasing the size of the basket. Combined with a built in 1″ aluminum dome tweeter to cover the high frequency, you have superior a speaker that can cover a full range of music.

Quick Stats

  • 2 way 6×8 coaxial system
  • Frequency Range: 63 – 29k Hz
  • Power handling (RMS): 100W

Price Comparison $121.45
3 new from $121.45
Last Amazon price update was: November 16, 2018 10:31 pm

Alpine SPR-68 Quick Review

Turn the music up with Alpine's SPR-68 6″ x 8″ car speakers. The Type-R SPR-68 was designed to be loud and clear, with multi-layer hybrid fiber woofers for strong bass response, and silk tweeters for smooth highs. They fit in both 6×8 and 5×7 openings, and are a great choice for use with your aftermarket or OEM stereo, as well as amplified stereos. In the SPR-68, Alpine also uses neodymium magnets which are much smaller than traditional magnets yet powerful so you can fit them in tighter spaces than many traditional 6x8s.

Quick Stats

  • 22 way 6×8 coaxial system
  • Frequency Range: 40 – 25k Hz
  • Power handling (RMS): 100W

Price Comparison $89.94 BUY IT $109.99 BUY IT

Infinity Kappa 682.11CF Quick Review

Keeping true to it's traditional line of speakers, the Infinity Kappa 682.11cf 6″ x 8″s produce incredibly clear and full sound. It features Infinity's proprietary Plus One+ technology – a glass fiber woven woofer cone that has more surface area and can withstand the forces of full power without flexing – a hi-roll rubber surrounding for long lasting distortionless sound, and a 1″ soft dome directional tweeter that will bring the high frequencies to life.

The 682.11cf is an excellent choice for aftermarket stereos with their higher sensitivity, but with its high power handling, you'll see the best performance with an amplifier.

Quick Stats

  • 2 way 6×8 component system
  • Frequency Range: 40 – 21k Hz
  • Power handling (RMS): 75W

Price Comparison $89.99 BUY IT $99.95
1 new from $99.95
Last Amazon price update was: November 15, 2018 2:37 pm

Kicker 40CSS684 Quick Review

The Kicker 40CSS684 was designed to bring a new level of sound to your vehicle without emptying your wallet. Built with a polypropylene woofer and polyester foam surround, these Kickers are an upgrade to any OEM stereo. The 40CSS684 includes external crossover with three different tweeter level settings to customize the sound to your preference, as well as separate 3/4″ titanium dome tweeters.

Quick Stats

  • 2 way 6×8 coaxial system
  • Frequency Range: 38 – 25k Hz
  • Power handling (RMS): 90W

Price Comparison $79.99 BUY IT $134.98
4 new from $134.98
2 used from $73.00
Last Amazon price update was: November 18, 2018 10:28 pm

Polk Audio MM571 Quick Review

An incredible bang for your buck – the Polk Audio MM571 6″ x 8″/5″ x 7″ car speakers offer the best value of CarAudioNow's best 6″ x 8″ car speakers. The MM571 features honeycomb-textured woven glass fiber composite woofer cones that are lightweight yet rigid for low distortion, 1″ silk dome tweeters tweeters for highlighting high frequencies and (like most of their speakers) a water-resistant design so you can use for marine and boat purposes.

Best Car Speakers: Common Speaker Terms & Ratings

When looking for the Best 6 x 8 Speakers to fit your needs, there are several things to consider before ultimately making a purchase. Here’s some common terminology and information to help you choose the best ones:
Lets define a few common terms that are compared when rating a speaker:

Power Handling: Power handling is the measurement a manufacture gives to rate how much power a speaker can handle and operate at. It is given by two measurements, RMS and Peak (or MAX). RMS Power rating is the amount of power the speaker handles continuously, while the Peak Power rating is the amount of power a speaker can handle in short bursts. When comparing speakers, RMS Power is the more relevant and important rating to look at.

Sensitivity: The speaker sensitivity rating is a measurement of the amount of sound the speaker will emit from the power it’s given. The higher the sensitivity, the more efficient the speaker is with the power it’s given. For lower powered systems, you want a higher sensitivity rating. For a higher powered system, you want a lower sensitivity rating. Lower sensitivity rated speakers are meant to handle higher power.

Frequency Range: Frequency range is the frequencies that the speaker emits sound at, measure in Hz. Normally they are given from a low frequency to high, for example: 20 – 22,000 (22k) Hz. This measure how low and high the speaker can actually emit sound at.

Speaker Design and Materials

Woofer: The speaker woofer can determine the responsiveness, and quality of the speaker. The stiffer and more lightweight the material used, the more effective the speaker is. Polypropylene is a very common material used for the cone, as well as woven fabrics such as kevlar. Aluminum and titanium are also used in higher end speakers.

Woofer Surrounding: The woofer surround also is an important aspect of the speaker system and effect the sound as well. Durable, lightweight, and free moving materials are used to allow the woofer to move with as little energy possible. The material is essential for a long lasting and performing speaker too. As speakers get older and used, humidity levels and wear-and-tear can crack and even break the surrounding of the woofer. Rubber surrounding is typically the most long lasting an high performing material. Foam an cloth surroundings are found on less expensive component speakers, with lower performance and shorter life spans.