How To Measure Car Speakers: A Complete Guide

Photo Source :

If you’re in the market for new car speakers, then one of the first things you’ll need to do is measure your existing ones. In this complete guide, we’ll show you how to do just that. We’ll also provide some tips on choosing the right speakers for your vehicle. So whether you’re a beginner or an experienced audiophile, read on for all the information you need!

How To Measure Car Speakers?

Photo Source :

There are several ways to measure car speakers. The most common methods are by frequency response, sensitivity, and power handling. Let’s take a look at each method in more detail.

Frequency Response

The frequency response of a speaker is the range of frequencies that it can reproduce accurately. The human ear can hear frequencies between 20Hz and 20kHz, so a speaker with a frequency response of 20Hz-20kHz is considered full-range.

Most car speakers are not full-range, and are designed to reproduce specific ranges of frequencies. For example, a subwoofer is typically only responsible for reproducing low frequencies (bass), whereas a tweeter handles the higher frequencies (treble).

The frequency response is measured in hertz (Hz), and the average human ear can hear between 20Hz and 20kHz.

When choosing new speakers, it’s important to consider the size of the speaker and its intended use. For example, a 6.5″ coaxial speaker will have a different frequency response than a 10″ subwoofer.


The sensitivity of a speaker is a measure of how much sound it produces from a given amount of power. It’s usually expressed in decibels (dB) and is measured with the speaker playing pink noise at one meter away from the listener.

A higher sensitivity rating means that the speaker will produce more sound for a given amount of power. For example, a speaker with a sensitivity of 90dB will require less power to achieve the same volume as a speaker with a sensitivity of 85dB.

When choosing new speakers, keep in mind that higher sensitivities are not always better. A speaker with too high of a sensitivity rating may sound harsh or tinny, and could even damage your ears if played at high volumes.

Power Handling

The power handling of a speaker is the amount of power that it can safely handle without being damaged. It’s usually expressed in watts (W) and is often referred to as the “peak power handling.”

It’s important to note that the power handling rating is not the same as the RMS power rating. The RMS power rating is a measure of how much continuous power a speaker can handle, whereas the peak power handling is a measure of how much power it can handle for short bursts.

For example, a speaker with an RMS power rating of 50W can handle 50 watts of continuous power, whereas a speaker with a peak power handling of 100W can handle 100 watts for short periods of time.

Tools Needed To Measure Car Speakers

Photo Source :

Measuring car speakers is a relatively simple process, but there are a few tools you’ll need in order to do it properly. First, you’ll need a tape measure. Second, you’ll need something to mark the dimensions of the speaker on the inside of your car door. A pencil or marker will work fine for this. Finally, if you want to be extra precise, you can also use a ruler or measuring tape to make sure your markings are straight.

Instructions For Measuring Car Speakers

Photo Source :

  1. Begin by opening the door of your car. You may want to put the key in the ignition and turn on the radio so you can test the speakers as you go.
  2. Locate the speaker you want to measure. In most cars, there will be a small grill covering the speaker. Using your fingers or a flathead screwdriver, gently pry the grill off so you can see the speaker.
  3. Once the grill is removed, use your tape measure to determine the diameter of the speaker. To do this, simply place one end of the tape measure at the edge of the speaker and extend it out until it reaches the other side.
  4. Make a note of this measurement, then replace the grill and move on to the next speaker. Repeat this process until you’ve measured all of the speakers in your car.
  5. When you’re finished, you should have a list of measurements for each speaker in your car. These measurements will come in handy when you’re ready to purchase new speakers or troubleshoot sound issues.

Importance Of  Measuring Car Speakers

There are a few reasons why measuring your car speakers is important. First, if you’re looking to upgrade your sound system, you’ll need to know the size of your current speakers so you can purchase new ones that will fit. Second, even if you’re not planning on upgrading, it’s still a good idea to measure your speakers so you know their exact dimensions in case you ever need to replace them. Finally, measuring your speakers can help you troubleshoot any sound issues you may be having with your current system.


Now that you know how to measure car speakers, you’ll be able to choose a new set that meets your needs. Be sure to keep the above factors in mind when making your decision, and always test the speakers before you buy them. Thanks for reading!



Leave a Comment