This guide will help you understand the basics of subwoofer frequency settings and how they affect your car’s audio system. There are many factors that go into setting up a subwoofer, but this guide will focus on the basics of frequency settings.
Table of Contents
- What is a Subwoofer and How Does it Work?
- How to Configure Crossover Frequency for Car Audio Systems
- Front component speakers, rear coaxial speakers, and a sub
- Front component speakers and a subwoofer
- 2-way front component speakers and a subwoofer
- 3-way front component speakers and subwoofer
- 2-way front speakers, rear speakers, and a subwoofer
- 3-way front component speakers, rear speakers, and a subwoofer
- Why you needs installing a crossover for car audio system?
What is a Subwoofer and How Does it Work?
A subwoofer is an electronic device designed to produce low-pitched audio frequencies. It is typically connected to a larger speaker, which produces the higher frequencies.
A subwoofer is designed to produce low-pitched audio frequencies. It is typically connected to a larger speaker, which produces the higher frequencies. A subwoofer can be mounted on the floor or placed on a stand, and it can be connected with wires or wirelessly via Bluetooth.
The bass of a song or movie is created by vibrations that are transmitted through speakers (either small speakers in your earphones or large speakers in your room). The vibrations cause air molecules around the speaker to compress and expand in waves that travel away from the speaker in all directions at once – this phenomenon is called “standing waves.”
How to Configure Crossover Frequency for Car Audio Systems
You know how a crossover works, but how do you configure crossover frequency? To properly configure frequency for a car audio system, you must know what each car audio setup is and which one your system is. There are many different car audio setups, but the most common is a 3-way setup. It’s important to know how to configure crossover frequency for different car audio system setups.
Front component speakers, rear coaxial speakers, and a sub
This car audio setup has a crossover. The front component speakers and the subwoofer need a crossover. The rear coaxial speakers don’t need a crossover because they’re built into the amplifier.
If you are thinking about adding a coaxial speaker to your car, you’ll definitely need to add a crossover filter to it. The passive crossover is an important part of the setup that will filter out the high and low frequencies from the speaker. The best passive crossover frequencies for this setup will be:
- Sub: Set the filter to 80 Hz (with a slope of 12/24 dB)Rear coaxial drivers: Set the high-pass filter to 80 Hz (with a slope of 12/24 dB)
- The front component driver is a critical component in audio systems. It should be set at 80 Hz with a slope of 12/24 dB.
- The crossover frequencies for 5.25-inch or bigger speakers are the best. If you’re using smaller speakers, then you should increase the frequency. First of all, make sure you have a good recording space. You can start at 300 Hz and then reduce the frequency slowly. If there is any distortion in the mids, raise the frequency back up slowly until everything sounds clear.
Front component speakers and a subwoofer
In this setup, you’ll need to have filters that divide the frequencies between the midrange and tweeters. This will need a high-pass filter to accomplish. The high-pass filter and passive crossover will help your component speaker send music to the midrange and high-frequency speakers. If you have a 3-way component speaker, the passive crossover will ensure the right frequencies go to each driver.
To get started, you’ll need to apply low-pass filters to your subwoofer to make it reproduce low frequencies only. For this setup, I recommend the following crossover frequencies:
- Set the low-pass filter to 80 Hz (with a slope of 12/24 dB)
Some configurations also apply to speakers larger than 5.25 inches, just like in “Audio Setup 1” above. For smaller speakers, start with a higher frequency until you get the best sound without distortion.
2-way front component speakers and a subwoofer
If you’re using one of the following setups, then you’ll need to apply filters:
- Low-pass filter a signal at 80 Hz, with a slope of 12/24 dB.
- You need to filter out the midrange. The band-pass filter should be in the 80-Hz range, and the high-pass filter should be at 5 kHz with a slope of 12/24 dB.
- Twitter users, use a high-pass filter at 5 kHz with a slope of 12/24 dB to get rid of noise.
3-way front component speakers and subwoofer
The best car sound system comprises of 3-way front speakers and a subwoofer. To achieve this, you will need three different filters:
- A high-pass filter for the tweeters, a band-pass filter for the midrange drivers, and a low-pass filter for the subwoofer.
- Set the low-pass filter to 80 Hz (with a slope of 12/24 dB)
- Woofers. Set the band-pass filter to 80 Hz and the low-pass filter to 500 Hz (with a slope of 12/24 dB).
- Midrange: Set the band-pass filter to 500 Hz high-pass filter and 5 kHz low pass filter (with a slope of 12/24 dB)
- Tweeters: Set the high-pass filter to 5 kHz.
2-way front speakers, rear speakers, and a subwoofer
If you’re using more than one speaker system, then use this combination of speaker types:
- The rear drivers: Set the high-pass filter at 80 Hz (with a slope of 12 or 24 dB)
- Front mids: Set the band-pass filter to 80 Hz and the low-pass filter to 5 kHz with a slope of 12/24 dB.
- Front tweeters- Set the high-pass filter to 5 kHz (with a slope of 12/24 dB)
3-way front component speakers, rear speakers, and a subwoofer
A car sound system must have the following crossover frequency configuration:
- Sub: I’m going to set the low-pass filter to 80 Hz (with a slope of 12/24 dB)
- Front woofers: Set the band-pass filter to 80Hz high-pass filter and 500Hz low pass filter (with a slope of 12/24dB).
- Front midrange drivers: Set the band-pass filter to 500 Hz high-pass filter and 5 kHz low pass filter (with a slope of 12/24 dB)
- Front tweeters: Let the high-pass filter go to 5 kHz (with a slope of 12/24 dB)
Why you needs installing a crossover for car audio system?
If you want the best sound quality in your car, you definitely need a crossover. Today’s stereos and coaxial speakers come with crossovers, but you may want to add a standalone car crossover for enhanced output of the crossover frequency.
If your car only has coaxial speakers, you do not need a crossover. Full range coaxial speakers have built-in crossovers that filter out frequencies. However, if you want to add a subwoofer, component speakers, and an amplifier to your setup, you should install a crossover.
If you have multiple speaker systems, and you want to split up the power, you may need more than one crossover. For example, if you want the subs to go through one amp and the tweeters and mid-range speakers to go through another, then you need two crossovers.
If you have an amplifier with a built-in crossover, you can use it for a two-way speaker setup. The high-pass filter will drive the tweeters and the low-pass filter will drive the subwoofer. So, you won’t need a standalone crossover. This will keep your installation simpler.
If you’re interested in installing car audio by yourself, here’s how to get started. You can configure your own car crossover by choosing the right crossover frequencies. The guide below contains a few settings to get you started. Crossover frequencies are only a guideline — you should experiment with them and adjust them to your needs. Don’t use the frequencies exactly as they are here. You can still change them to your preferences. Just use your ears to tune them until you like the results.