A Guide To Car Speaker Sizes: Learn Which Fits in Your Car

Can’t figure out the right speaker size for your car? We’re here to help! Audio Curious brings you helpful tips to guide you through different car speaker sizes.

Shopping for car speakers, whether physically or online, requires a little background information on what exactly you want to buy. Unfortunately, most people don’t take the time to do enough research on the products in the market and identify the best car speakers. Even those who do have time to do a little research end up believing in the manufacturer’s specifications – which might not be as accurate as advertised.

Car speaker sizes are measured in inches. They include the measurements of the speaker frame and also the hole alignment. These measurements are not just about the diameter of the cone or the cutout diameter. The manufacturer’s design also affects the speaker size. For example, an OSD Audio AP650 6.5 inch speaker may not be exactly equal in size to a 6.5 inch Kicker 43DSC6504. Why? Because the designs are different. Remember, you want something that actually fits in the designated space inside your car.

Car Speaker Sizes

What kind of speakers should I get for my car? Your car speaker configuration is one of the most important factors to consider when choosing the correct speaker size. Many people argue that the bigger the speaker, the better the sound. The size of the speaker has a big impact on the sound quality, but to reap the benefits, it must first fit in the designated space. Here are the most popular car speaker sizes to begin with.

3.5 Inch speakers

3.5-inch speakers are some of the smallest speakers for cars available in the market. They can fit in the tightest spaces in your car and, at the same time, redefine your experience when it comes to high and mid-range frequencies. 3.5 inch speakers are also great in bringing out clarified sounds from your system. They consume less power, are space-efficient, and, best of all, affordable.

4 Inch speakers

Everyone loves fine tunes when listening to your favorite playlist, and that’s exactly what 4-inch speakers are here for. Just like other smaller-sized speakers, 4-inch car speakers are dedicated to high and mid-range frequencies. In addition, they’re made from quality materials which all together consume little power to produce clear, crisp highs with undistorted sound output.

4×6 Speakers

Your factory stereo may slack a little bit on the audio quality. That’s where 4×6 speakers come in. These speakers serve as the proper replacement for your factory stereo. They also offer a slightly better bass compared to their 4-inch counterparts. However, installing these speakers may not bring out the best bass. They’re also affordable and cover a large frequency spectrum.

4.10 Speakers

4.10 speakers are designed to handle high and mid-range frequencies. In addition, they feature a long narrow shape that fits in a moderate space. Sadly, 4.10 speakers may not bring out the bass you desire in your car music. For that, you need larger 5-inch speakers.

5.25 Inch speakers

Relatively small, 5.2-inch speakers are suitable for door speakers, especially the rear doors. They can be installed in virtually any car model.

5.7 Inch Speakers

Most factory speakers are made of low-quality materials, which means poor sound quality. But you can swap your OEM speakers for a pair of upgraded aftermarket 5×7 speakers, which deliver clearer and louder sound. These speakers have less distortion and are better at handling power.

6 Inch speakers

6-inch car speakers are big enough for all car models. They’re ideal for loud music as they can withstand shock and shaky car movements. Despite being bigger than the 5″ series, 6 inch speakers are quite easy to install. They are a suitable choice for a mid-range frequency and a little bass.

6.5 inch Speaker

Excellent sound quality and quality bass is what 6.5-inch speakers are all about. However, this applies if you get yours from the right manufacturer. 6.5 speakers are considered a standard size because they’re quite easy to replace without having to modify them or the space allocated. A 6.5 speaker may not produce the best bass. However, when it comes to clear, crisp sound, they may outperform your 6.8 speakers.

6.75 Inch Speakers

If you love some good bass, then these speakers are what you’re looking for. Different manufacturers combine several features, e.g. higher sensitivity and frequency range, higher output power and RMS, and little to no sound distortion. 6.75-inch speakers are also built for durability, meaning that yours will serve a long time if well maintained.

6.8 Inch Speakers

If you’re looking to boost your music experience, 6.8-inch speakers are space-efficient options that give you no headache to install as long as you know what you’re doing. They deliver a better bass than a 6.5 speaker, better volume control sealed in a sleek design. Even better, a 6.8-inch speaker is space-efficient and can fit in a 5×7 opening. You’ll find them fitted on the rear decks of several car models.

6.9 Inch speakers

These are powerful options that fit a wide range of vehicles. 6.9 inch speakers have a wider cone than other speakers. This cone ensures that the bass output is reasonably loud. With 6.9-inch speakers, there’s actually not much to change with installing additional woofers and subwoofers. They are mostly installed at the back of the car, preferably at the boot, depending on the type of your vehicle. You can also install it in the cockpit (it all depends on your taste and preference).

If you buy a large speaker to install in a small space, chances are, you will have to modify the existing speaker ports for it to fit. Always ensure that you have checked, measured and inquired about the speakers in your car to pick from the wide variety of speakers the market offers.

How To Measure Your Car Speaker Sizes

How do I know what size speakers I need for my car? It all begins with learning how to measure speaker size in inches using a few tools, including a screwdriver, tape measure, some panel removing tools, and a notebook and pen to record your findings.

  • Remove the panel that houses speakers. The front and rear speakers may not be housed under any panel, but they do have slots.
  • Use the screwdriver to remove the speaker from its position and place it in a safe space.
  • Using the tape measure, measure the mounting depth just below the mounting plane to the top of the magnet.
  • Note down the measurements using the pen and notebook.
  • Next, measure the height of the speaker.
  • Measure the speaker diameter and write it down as well.

Figuring out which car speakers sizes are appropriate for your car can be a little confusing due to the wide variety of products in the market. The size of the speaker is closely related to the frame diagonal measurement and speaker hole sizes. Other factors taken into account include the speaker shape. Also, remember to avoid speakers whose holes are not round.

What To Look For In Different Speaker Sizes

Does Speaker size matter in a car? Yes, it does. Getting the right speaker measurements is just as important as its specifications. You will have an easier time considering what choices you have and also what models fit your car perfectly. You will also enjoy easier installation with the right speaker size, but before that, here are the most important guidelines when dealing with car speaker sizes.

Installation Space and Speaker Diameter

All vehicles come with slots for speakers, whether on the door panel, the rear side of the car or the front. When choosing your speaker size, you should start by getting the holes right. Consider how much space is available and what size speaker it can actually take. Speaker diameter is also a key consideration – you do not want to take something that’s actually bigger than the hole it’s designed for.

Mounting depth

The mounting depth is measured from the base of the speaker to the lower part of the mounting flange. Getting the right mounting depth should prevent the speakers from hitting the inner side of the door. It should also create good clearance for better sound quality.

The Weight of The Speaker

Different weights determine the location of the speakers. To prevent any damage, heavy speakers should be placed in sturdy locations, while lighter speakers can be installed in lighter areas such as the car door panels.

Sound Quality

Sound quality is one of the most important considerations. Different sizes offer different quality. For instance, smaller speakers are better suited to high and mid-range frequencies, while larger speakers are designed for bass and mid-range frequencies. Knowing the difference helps one make an informed decision aligned with what they want to achieve.

You may also learn which is better for you: 2-Ohm Vs 4-Ohm Subwoofer

Make An Informed Decision Today!

Car speaker sizes come in different designs, makes, and models. However, the best speaker size for your car also depends a lot on your personal taste and preference. To enjoy good quality music, always aim at getting the measurements right. Feel free to ask an expert in case of any doubts about the right speaker dimensions for your car.

Avatar for Jamie K. Martin

Jamie K. Martin holds a degree in Audio engineering from Husson University, Bangor. Martin spends most of his time testing and trying the technology he writes about to ensure that he provides first-hand information to our customers from all walks of life.

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