In most cases, the speakers that come in factory stereos don't meet consumers' expectations for quality, longevity and most importantly performance. Finding an all around Best 5.25in Car Speaker that will significantly boost your stereo's performance while maintaining a high expectation for quality, dollar value and most importantly sound reproduction, can be difficult and time consuming. A good pair of speakers will allow you to turn up the volume while lowering distortion and bring true sound to your music.
Also referred to as “separates”, component speakers have two separate speakers that emit different ranges of frequencies and sounds. The woofer, or the larger speaker, emits the lower to mid range frequencies while the tweeter, the small speaker, covers the very high range frequencies and noises. Separating the tweeter and woofer allows for clearer sound with less distortion. Pair them up with one of the Best Car Stereos on the market, and you'll find yourself reluctant to leave your car when a good tune is playing.

So what are the Best 5.25″ Component Car Speakers? A combination of our knowledge and experience first-hand in the field with products, combined with extensive research has led us to our own list of top 5.25″ component speakers for your car. We did the research so you don’t have to! Our lists are non-biased and are based on a combination of performance, popularity, and price.

Here is a list of 2017's top rated and reviewed 5.25" inch car speakers to help you choose the best products for your car's stereo:

Best 5.25" Car Speakers | Top 5

Our Rank5.25" SpeakerSpeaker TypePower HandlingFrequency ResponsePrice
1.Infinity Kappa 50.11CS2 WayRMS: 85 Watts
Peak: 225 Watts
55 - 35k Hz$$$
2.Focal 130AS2 WayRMS: 50 Watts
Peak: 100 Watts
65 - 20k Hz$$$
3.Hertz HCX 1302 WayRMS: 70 Watts
Peak: 140 Watts
60 - 22k Hz$$$
4.MTX Thunder512 WayRMS: 90 Watts
Peak: 180 Watts
51 - 20k Hz$$
5.Polk Audio DB52522 WayRMS: 100 Watts
Peak: 250 Watts
50 - 23k Hz$

How We Tested

In order to identify and rate the the top rated speakers, has 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 5 1/4 speakers. And in addition to our compilation of products, 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 5 1/4 Inch Component Car Speaker List

Editor's Rating:

5 Stars

- 2 way 6.5" component system
- Frequency Range: 55 - 33k Hz
- Power handling (RMS): 85W

Price Comparison

Infinity Kappa 50.11CS Quick Review:

Infinity uses a combination of rugged design and construction with proprietary Plus One+ woofer technology to create one of the most well-rounded 5.25" speakers on the market today. A historically respectable line of speakers, this Kappa series component comes a multitude of previous version speakers to produce the best one yet. And with a high sensitivity, these speakers work great with OEM car stereos, as well as handle an external amplifier to push them to their potential.

Editor's Rating:

5 Stars

- 2 way 5.25" component system
- Frequency Range: 60 - 25k Hz
- Power handling (RMS): 50W

Price Comparison

Focal 130AS Quick Review:

The Focal 130AS that will redefine your standards for car 5.25" speakers. Defined by high precision, quality and performance, Focal continues to set the bar with their speakers, including the 130AS. These Focals feature two 5.25" DFS woofers, two TN44 inverted-dome tweeters, and two external crossovers. They are designed with a dual fiberglass structure cone to give precise mid and high sound reproduction, as well provide the low and deep bass. Combined with a butyl rubber surround, you have a high performing woofer that delivers, while ensuring long lasting durability in all types of weather.

Editor's Rating:

4.9 Stars

- 2 way 5.25" component system
- Frequency Range: 60 - 22k Hz
- Power handling (RMS): 70W

Price Comparison

Hertz HCX 130 Quick Review:

An Italian manufacturer, Hertz is well known for producing powerful and high quality speakers and subwoofers; the HCX 130 is a representation of their outstanding reputation. Only high quality materials are used in the manufacturing of these speakers; Damped Mesh Fibre Cone with a Loss-less Polymer Rubber Surround, die-cast aluminum baskets. The HCX 130 5.25" speaker is a guarantee to an incredible sounding system.

4. MTX Thunder51

MTX Thunder51

Editor's Rating:

4.7 Stars

- 2 way 5.25" component system
- Frequency Range: 51 - 20k Hz
- Power handling (RMS): 90W

Price Comparison

MTX Thunder51 Quick Review:

The MTX Thunder51 isn't just built to perform well, it's made to produce the rich music you love with the quality you need, without sacrificing the durability and longevity that you expect. Rugged in design, the Thunder51 features a 5.25” polypropylene woofer with a rubber surround for long-lasting durability and weather resistance, a concave dome and directional adjustable tweeters. It's truly a universal and powerful pair of components.

5. Polk Audio DB5252

Polk Audio DB5252

Editor's Rating:

4.7 Stars

- 2 way 5.25" component system
- Frequency Range: 53 - 23k Hz
- Power handling (RMS): 100W

Price Comparison

Polk Audio DB5252 Quick Review:

Let the Polk Audio DB5252 turn your good music into great music. The DB5252 stems from Polk's DB5251 series 5.25 component speakers. They're among the most popular 5.25" car speakers on our list, and for good reason. They have a great balance of materials including a Mica Cone woofer, durable Butyl rubber surround and a Silk/Polymer Dome tweeter. They are engineered for producing incredible sound while minimizing distortion.

In the box, Polk gives you mounting hardware for the woofers and tweeters, as well as stylish grilles that'll add a new flare to your vehicle. They're also a great choice for harsher environments like boats or outdoors. They're marine certified with an IP55 rating (water and dirt resistance).

Other features that make these speakers great include:

  • 5.25" polypropylene woofer cone
  • Rubber woofer surround
  • External 2-way crossovers
  • Zero tweeter protrusion

Best Car Speakers: Common Speaker Terms & Ratings

When comparing and choosing the Best 5.25" Component Car Speakers on today's market, takes into consideration several key criteria: Lets define a few common criteria and 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.

Crossovers: When you purchase a component car speaker system, a crossover is almost always a part of the package. External crossovers are typically used to lessen the amount of distortion a speaker might have by separating the frequency inputs. Signals can cross through coated wiring and cause distortion, so an external crossover system will limit this.

Also see's Best 6.5" Component Car Speakers | Best 6" x 9" Car Speakers | Best 5" x 7" Speakers

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