Tired of listening to weak bass and low-quality sound from car audio?

You might be looking to upgrade your car audio, and the best way to do it is by installing a DSP in your vehicle.

This digital signal processor improves your system’s sound quality and audio performance in no time.

However, finding the best DSP for car audio can be a strenuous task. And, this is where our guide comes into play.

We have reviewed the 7 best available aftermarket products that will stand above your expectations. In the end, an ultimate buying guide will further help you to choose the best DSP for your car audio system. 

Which are the best DSP For Car Audio?

1. Stetsom STX 2448 DSP

  • Channels: 8
  • Display screen: Yes
  • Number of processors (DSPs): 2 input/8 output

If you’re looking for a DSP that offers excellent value to your money and takes the car audio sound to the next level you could ever imagine, then Stetsom STX 2448 DSP is a perfect choice.

It offers excellent features that will improve your car audio to the extreme level you deserve.

It is a 4 channel DSP that has 2 audio outputs and 8 independent outputs. The LCD and intuitive interference provide ease of use. The multiple frequency options allow you to control it easily.

In addition to that, it comes with an integrated equalization system with a 15 band graphical equalizer. You can either control it by manual tuning or through 12 presets.

You can also make personal equalization adjustments with the help of its 5 parameter equalizers. 

It has a compact design that can be perfect in a car audio system. You can count on its digital audio processor that will take your car audio to the next level.

Other notable features include crossover function, security password, and integrated audio generator.

LCD and Intuitive Interface
15 band equalizer
Convenient compact design
Customizable sound adjustment
Doesn’t support Bluetooth

2. Dayton Audio DSP-408

  • Channels: 8
  • Display screen: No
  • Number of processors (DSPs): 4 input/8 output

Whether you want to listen to a higher sound volume or lower it down to your satisfaction level, you can rely on this Dayton audio DSP-408.

It provides precise tuning and complete control over your car audio system.

With graphical user interference, you can make real-time sound adjustments without any complications.

It features 4 input and 8 output channels, allowing you to connect multiple devices with it.

With that help, you can listen to explicit music without distortion. 

It comes with an integrated 10-band parametric EQ that is fully adjustable for each output channel.

The feature that makes it the best available DSP for car audio is its optional support for Bluetooth connectivity. This way, you can control this DSP through mobile devices.

Moreover, it comes with six presets that can be easily customized according to your needs. Also, you can load, save, or delete preset files in the DSP.

To provide excellent functionality, it also includes time alignment, crossover, and input/output functionality. The best part, you can also use it for home audio systems.

Read More: Best 4 Channel Amp for Door Speakers

4input/ 8 output channels
10-bands parametric equalizer
Time alignment feature
Bluetooth connectivity
The Bluetooth dongle is sold separately

3. Taramp’s Pro 2.6 S

  • Channels: 6
  • Display screen: Yes
  • Number of processors (DSPs): 2 input/6 output

If you’re looking for a DSP that can bring revolutionary development to your car audio system, you should opt for Taramp’s Pro 2.6 S DSP.

It is compatible to fit in any car audio system. A manual guide comes along with the package that helps you during the installation.

Moreover, this digital audio processor comes with 2 input and 6 output channels, which means that you can operate the output channels individually.

The best feature that makes it a perfect aftermarket product is its easy-to-operate scroll button. With this help, you can make simultaneous adjustments on the go. 

You can count on this DSP to enhance the performance of your car’s audio and sound quality. What’s more, is, this product features an adjustable limiter.

The limiter has three flexible options, including off, automatic and active.

Another excellent feature is its integrated 3-band parametric equalizer that is fully adjustable for each output channel.

It has integrated high and low pass filters that eliminate the frequencies of sound that cause distortion.

An adjustable limiter
Easy to operate scroll button
Compatible to fit in audio system
Doesn’t support Bluetooth

4. AudioControl DM-608

  • Channels: 8
  • Display screen: No
  • Number of processors (DSPs): 6 input/8 output

Audio control DM-608 does a great job when it comes to improving the audio system and sound quality.

It comes with 6 inputs and 8 output channels and has an exceptional frequency response. Due to this, it can process varying frequencies with a minimum issue.

You can count on this DSP to truly optimize the audio system’s sound quality like never before.

The perfect feature that makes it stand out from the competition is its 5 years warranty. Moreover, it comes with independent equalization.

With that, you don’t need to equalize front, rear, and woofers as the system does this for you. 

The best part is, you can access all the control and adjustments through your laptop via a USB connection.

The major downside of this product is its expensive price tag. Its compact design and perfect dimension make it easy to fit an in-car audio system. You don’t have to struggle a lot while installing this product. 

The high pass and lower pass filters eliminate unwanted frequencies that create distortion. Hence, providing you with excellent sound quality.

Other features include 30 bands of equalization, signal time-alignment, input delay, and phase correction, and integrated input and output RTA’s.

Signal time alignment
30-band equalization
5 years warranty
A bit expensive
It lacks a display screen

5. Stetsom STX 2848

  • Channels: 8
  • Display screen: Yes
  • Number of processors (DSPs): 2 input/8 output

Stetsom STX 2848 DSP offers quality features and comes at an affordable price that doesn’t break your bank.

It provides more control and enhances the performance of your car audio system to the premium level.

The intuitive interference makes it easy for you to operate it even when you’ve never used it before.

This interference is combined with LCD, which helps to create real-time audio adjustments to the audio system.

It comes with 2 inputs and 8 independent output channels. You can select the audio source you want to use for each output (A, B, or A+B).

In addition to that, it has an integrated equalizer with a 15 band graphic equalizer. You can control it either by manual tuning or taking advantage of 12 presets.

To enjoy more control over the sound, you can also utilize its crossover function. 

One of the best features it has is an audio limiter with a dynamic attack release. It controls attacks and releases parameters that aid in the protection of amplifiers and subwoofers.

Other features include security passwords, text display, and language selection.

Read More: 8 Common Car Stereo Problems and Their Solutions

15 band graphic equalizer
Intritutive interference with LCD
Audio limiter with dynamic attack release
It lacks English instructions


  • Channels: 8
  • Display screen: Yes
  • Number of processors (DSPs): 4 input/8 output

If you want stellar sound and more control over your car audio system, PRV DSP will be the perfect choice. Its state-of-the-art sound-enhancing ability and unique display made it to rank first on our list.

When talking about its features, the first one that caught your attention will be its wide range LCD and intuitive interference.

With the help of that, you can make real-time sound adjustments without facing any complications. 

It comes with a total of 8 channels, including 2 audio and 8 independent outputs, allowing you to choose an audio source (A, B, or A+B) for each output.

Its integrated equalization system features 15 band graphic equalizers that let you enjoy a sound performance in full swing. 

You can either control it by manual tuning or take advantage of 12 presets for simpler equalization.

Another notable feature is its audio limiter that ensures protection from attack and releases parameters.

The Crossover has high and low pass filters that eliminate lower and upper frequencies to provide distortion-free sound.

Dynamic Attack-Release system
15 band graphic equalizer
Complete sound customization
User-friendly graphic interference
Pretty expensive

7. Dasaita Car Audio DSP

  • Channels: 4
  • Display screen: No
  • Number of processors (DSPs): 2 input/4 output

With Dasaita Car Audio DSP, you don’t have to compromise on listening to low-quality sound from a car audio system.

It will improve your sound system’s performance and provide more control over the audio. You can now listen to the sound of your own choice.

It is small, compact, lightweight, and easy to install in the car audio system. It takes less time during installation as compared to others.

Moreover, the company provides extra cable to attach it conveniently in vehicles such as VW, Nissan, Ford, Toyota, Benz, BMW, Mazda, Peugeot, and Hyundai.

It features 2 input and 4 independent output channels. The major downside of this product is it has no display for ease of use.

However, it is an affordable and best choice product for those who can’t afford an expensive digital sound processor.

In addition to that, the crossover function can filter out frequencies in the range of 20Hz-20KHz. The signal summing function makes it possible to combine multiple input signals in the desired output channels. 

Convenient compact design
Easy to install
Affordable in price
Signal summing function
Doesn’t have a display screen
Lacks Bluetooth connectivity

Best DSP For Car Audio: Buying Guide

A DSP enhances the sound system’s performance and audio quality. It boosts your audio system and lets you enjoy listening to the premium sound quality you deserve. 

However, choosing the best DSP for a car audio system has never been an easy task.

To help you find the right one, we designed this ultimate buying guide that tells about the factors you should consider before finalizing a product. 

Give it a read, and it will be easy for you to select the best DSP for your car audio.


First and foremost, make sure the DSP you’re purchasing has an equalizer feature.

An equalizer allows you to control different frequencies coming from the system and output the kind of sound you desire to listen to.

The number bands in an equalizer determine how much control you will have over the frequencies.

The more the number of bands, the more it can fine-tune the frequencies. So, always consider an equalizer in DSP before purchasing.

The Number Of Output Channels

The number of output channels determines how many speakers you can connect to the DSP.

For example, if you have two front and two rear speakers in your car audio system, then make sure the DSP has a minimum of 4 channels.

If you plan to add a subwoofer, then look for extra channels. More channels mean you can add more output devices for a high-quality sound. 

Time alignment

Since sound waves travel a little slower through the atmosphere, it takes a slight delay of milliseconds when it leaves the speakers and reaches the listener’s ear.

A time alignment function in the DSP filters out the delay of sound so that it reaches at the same time to the listener as the time it leaves from the speaker.

This will eliminate subtle echo and distortion, and you can listen to the high-quality sound. 


A crossover has high and low pass filters, which eliminate low-end and high-end frequencies from the sound that causes distortion. This way, you will be able to listen to the profound quality of sound.

With that, a tweeter will only produce high, and the subwoofer will only produce low sound.

While purchasing DSP, make sure it has a considerable frequency range. For instance, a frequency range between 20Hz to 20KHz would be best since it is the audible frequency of human ears.

Design and Dimension

A compact design and lightweight DSP will make it easy to install in the car audio system.

While heavyweight and the bigger one are challenging to maneuver, and you will face several issues when installing it in your vehicle.

Thus, go for compact and lighter ones as they are more mobile and provide easy installation. It is best to select the DSP that fits the dimensions of your vehicle accordingly.

So, measure the dimension of the place first and pick the system that has the exact measurements.


What is a good DSP for car audio?

From our list, the good DSP for car audio is PRV AUDIO DSP 2.8X. It offers great value to your money and takes your car audio to the next level you could ever imagine. 

Is DSP needed for car audio?

If you want your car audio system to produce high-quality with zero distortion, then you must install a DSP in your vehicle.

It provides you more control over sound frequencies so that you can listen to them according to your desire.

Does a DSP make a difference?

Yes, it indeed does. DSP enhances your car audio and sound quality to the premium level.

With installing that in your vehicle, you can be sure that you will never listen to low-quality sound again. 

What does DSP stand for in-car audio?

DSP is a digital signal processor that uses a microcontroller to manipulate audio signals in the digital domain. It is installed in the car or home audio system to improve audio and sound quality. 

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