The Best 6.5" Coaxial Car Speaker Review


Upgrading your car's factory speakers with of the Best Coaxial Car Speakers will give new life to your daily driving. Coaxial speakers combine the woofer and the tweeter onto the same axis. They are a combo package. This allows the projection of a full range of sound and frequencies from one speaker. They’re easier to install and easier to wire, you can even place coaxial speakers in place of components if you’d like. This type of speaker is arguably the most popular speakers on the market. Before you scroll down to our list of 6 1/2 inch coaxials, make sure you know the difference between a coaxial and component car speaker:

Component Speakers are typically a pair of tweeters and mid-bass drivers (speakers) that are matched with a crossover that limits the frequency range each speaker reproduces. You can tell if your car has components if you have more than one speaker for each channel, or if the tweeter is separate from the mid-bass driver. Usually component sets are in the front of the vehicle.

Coaxial Speakers have the tweeter, mid-bass driver and the crossover mounted together in one space saving speaker. They are very popular because they are much easier to install and don’t take up as much space as the component set. Coaxial speakers are usually found in the rear of the vehicle.

If you still don’t know the difference between a coaxial and component speaker and would like to learn more, click here for more information.

How We Tested

In order to find the best 6.5" coaxial speakers, CarAudioNow 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 6.5" coaxials. 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.

The Best 6.5" Coaxial Car Speakers List

Editor's Rating:

5 Stars

- 2 way 6.5" coaxial system
- Frequency Range: 48 - 25k Hz
- Power handling (RMS): 75W

JL Audio's C5-570x Quick Review:

On the top of our list of The Best 6.5" Coaxial Car Speakers is the JL Audio C5-650X. The C5-650X features long-excursion mineral-filled polypropylene woofers that have longer travel that push more air, as well as a cast alloy frame with a patented cooling design that increases its efficiency and power handling.

One of the great unique features that the C5-650X has is external crossovers. These give you 4 position tweeter level and 3 midrange level controls so you can tweak the sound to you preference.

Editor's Rating:

4.9 Stars

- 2 way 6.5" coaxial system
- Frequency Range: 50 - 22k Hz
- Power handling (RMS): 100W

Rockford Fosgate Power T1682 Quick Review:

You won't find a bad review about this pair of coaxial car speakers - the Hertz HCX 165. Built with an over-sized magnet, a damped mesh fibre cone and loss-less polymer rubber surround, the HCX 165 was designed to produce smooth, clear and loud music efficiently. They are manufactured with high quality materials with high standards. The combination results one of the Best 6.5" Coaxial Car Speakers on the market today.

Editor's Rating:

4.9 Stars

- 2 way 6.5" coaxial system
- Frequency Range: 60 - 20k Hz
- Power handling (RMS): 80W

Amazon Logo$1,198.50

Focal K2 Power 165KRC Quick Review:

The Focal K2 Power 165KRC has a power handling of 160 watts peak per speaker, a high sensitivity of 93 dB and great frequency range. It is undoubtedly one of the best quality and performing set of coaxial speakers on the market, meant to blow away it's competitors.

The 165KRC features woofers that are made from Aramid, foam and glass fibers that are designed to play all types of music with precision and power. These woofers are mounted in a zinc-aluminum alloy baskets that are non-magnetic, which eliminates all interference.

In addition to the innovative design and engineering, during assembly Focal meticulously tests every model to ensure that they meet Focal's standards. But, with a heavy price tag, it might dig deep into your wallet which is why it is number 3. But if you have the cash, the Focal K2's are truly one of the ultimate coaxial speakers.

Editor's Rating:

4.7 Stars

- 2 way 6.5" coaxial system
- Frequency Range: 65 - 29k Hz
- Power handling (RMS): 100W

Alpine SPR-60 Quick Review:

The Alpine SPR-60 is one of the best selections on our Best 6.5" Coaxial List for those looking to replace their speakers and use with an aftermarket head unit. But, they're also an excellent choice for an amplified system and can handle power with ease so you can be confident in turning it up without hearing any distortion.

The SPR-60 features multi-layer hybrid fiber woofer cones for great bass response, silk tweeters for producing highs that bring out your music's high details and powerful neodymium magnets that are smaller and lighter but pack just as much punch. Type-R speakers have come fit the demographic for those who like to 'crank it to the max', so if you fit the profile, the SPR-60's are the speaker for you.

Editor's Rating:

4.7 Stars

- 2 way 6.5" coaxial system
- Frequency Range: 55 - 22k Hz
- Power handling (RMS): 75W

Rockford Fosgate T1675 Quick Review:

Next on our list is the Rockford Fosgate Power T1675. An oversized 6.5" (fits 6.5" openings) pair of Coaxial Car Speakers, these speakers are very well priced for their performance. They put out a peak 140 watts per speaker, have a 4 ohm impedance and great sensitivity of 88 dB. Designed as a high powered OEM speaker replacement, these Rockfords will be a great upgrade to your car's stereo whether you have an OEM, aftermarket head unit or even if you have a high-powered amplifier.

Editor's Rating:

4.6 Stars

- 2 way 6.5" coaxial system
- Frequency Range: 35 - 22k Hz
- Power handling (RMS): 60W

Polk Audio DB651 Quick Review:

Undoubtedly a stylish pair of speakers, the popular Polk Audio DB651 also packs a punch with 200 watts peak power handling per speaker. With a good frequency range, sensitivity of 92 dB, and incredible price in the $50s, the DB651 gets the CarAudioNow Best Value award.

The DB651 features polymer/mica composite woofers with durable rubber surroundings that are built to withstand heat and moisture without falling apart. The tweeter is a liquid-cooled 3/4" silk/polymer dome with Neodymium magnets for crisp and clear high frequency sound reproduction. The tweeters even pivot, allowing you to aim them wherever you'd like. And like most of Polk's speakers, the DB651s are water resistant and marine rated, so if you're looking for a great speaker to put into your boat, these are the speakers for you

Best Car Speakers: Common Speaker Terms & Ratings

When comparing and choosing the Best 6.5" Coaxial Car Speakers on today's market, CarAudioNow 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.

Looking to further upgrade your car stereo? Check out the Best 6.5" Component Car Speakers, Best Car Subwoofers, Best Car Stereos, and Best Car Amplifiers