How to Use DSP in Car Audio? – A Deep Dive into DSP Usage

DSP (Digital Signal Processing) works amazingly to maximize the audio quality of the best amplifier and speaker. The improved features of DSP ensure the best listening experience from car audio. However, many audio enthusiasts need to learn how to use DSP in car audio. 

Proper installation allows you to enjoy the benefits of a DSP audio processor. Otherwise, enjoying the best audio output is impossible despite using a high-end car audio DSP.

In this guide, we will discuss using a DSP in-car audio Bluetooth. Also, you will know the benefits of digital signal processing. If you are curious to explore, then let’s start!

What Is DSP in Car Audio?

DSP stands for digital signal processing. It is an electronic device designed to make the car audio sound outstanding. This device allows the user for micro adjustment in car audio settings with equalization. DSP is the best option to ensure maximum pleasure in listening to audio in your car.

What Is DSP in Car Audio

The Ways of Using A DSP in Car Audio

Setting up a DSP device in car audio required extra care and attention. Follow the steps below carefully when setting up DSP to get the best performance. 

A factory stereo is required to connect a DSP with car audio. So, connect the DSP’s input with the factory stereo input. Hence, use an RCA patch cable to connect DSP’s output with the car audio amplifier. 

Note that some specific DSPs can receive input signals from powerful amplifiers. Similarly, you can use a DSP with an aftermarket car stereo by connecting an RCA cable and preamp output.

What Should Be Kept in Mind When Using A DSP?

Choosing a DSP could be clearer. So, here are the primary important features you should consider for DSP setup. 

Controlling System

DSP is available in traditional and digital control systems. You can control the tweak setting on the fly in a traditional DSP. So, the mounting position would be accessible. Another system is car audio DSP with Bluetooth or USB cable. Many car audio enthusiasts want to know how to use DSP in car audio Bluetooth. You can set up a Bluetooth DSP like a traditional DSP. 

Power

There are high-powered amps with DSP built-in processors. If you use those best amplifiers with DSP, no extra amp will be required for your car audio. 

Equalization

Equalization means adjusting the frequency response according to the car’s acoustic and user preferences. Proper equalization can reach sound clarity at the maximum level. 

Time Classification

The sounds of the front and rear speakers could be off-balanced because of individual hearing distance. In this case, time classification can slow down the nearest speaker’s sound and adjust it with the distant rear speaker. 

Polarity

Correct polarity is important to maintain proper phase alignment between car audio speakers. It is also crucial to maintain the integrity of sound waves. 

Factory Stereo Integration

It is important to integrate the DSP and factory stereo. This integration will give you a clean sound output and prevent sound distortion. 

Sound Stage Clarity

You must set up specific DSP parameters to get the car audio’s best sound stage and clarity. Professional car audio experts generally have polarity checkers, SPL meters, RTAs, voltmeters and oscilloscopes to check the audio quality after parameter setting. However, you can test the sound output through some process. For example, you can do Listening Tests, smartphone apps and DSP software. 

Crossover

All of the programmable DSPs are designed with different types of crossovers. So, these individual crossovers can focus on the best sound-produced parts of the speaker. 

What Is The Best Recommended DSP for A Car Audio System?

There are several recommended brands of DSP for car audio. However, we have researched and listed two popular DSP models for car audio. 

1. Hertz SPL S8 Compact Digital Interface Processor

It is an ultra-compacted DSP model and comes with a wide range of integrity. This DSP is highly technologically improved to use with cars, motorcycles, and boats. The composite built material makes it corrosion-resistant. Besides, it is considered the best budget car audio DSP.

Features

  • It can process car audio with 96 kHz / 24-bit resolution. This is an excellent resolution for fine-tuned music. 
  • SPL S8 DSP is remarkably user-friendly because it has 6 high/low-level analogue input and 8 output channels. 
  • The SPL S8 comes with a SPDIF coaxial input for digital connection
  • It is controllable from Apple & Android tablets & smartphones

Pros

  • It is superior in performance and great in accessibility
  • Compacted design is easy to carry anywhere

Cons

  • The customer support for this DSP isn’t satisfactory
  • Some customers have complained about the weak quality

2. 2×4 HD Digital Audio Signal Processor

If you are looking for a tiny DSP, this 2X4 HD is a fantastic choice. This high-end car audio DSP is a best-selling digital signal processor. Due to having all the advanced features, this DSP becomes ideal for car audio systems. 

Features

  • It is featured on both Bluetooth and USB audio DAC + 400MHZ processor
  • Its tiny size and ultra-lightweight features allow you to carry it with maximum comfort
  • 2×4 HD Digital Audio Signal Processor comes with Delay/Meters, PEQ/Crossovers, FIR and IIR filters

Pros

  • Ideal for, respectively, DSP community, home theater and speaker builders
  • Best choice for multiple subwoofer calibration

Cons

  • Some customers are unsatisfied because they have received broken parts.

How to Tune Your DSP to Get The Best Sound Quality from Car Audio?

Here, you can follow some steps to ensure the best car audio sound output. 

  • Check out the acoustic response of your car
  • Use a high-quality mic and software to know the sound frequencies
  • Adjust all required and preferred parameters in DSP
  • Make sure about the proper fine-tuning through listening to different audio

Read More: How to Tune Your Car Audio DSP.

Final Words

We hope you have learnt how to use DSP in car audio. Using a DSP is simple, but you should consider other factors that help to get the best output from the DSP. Proper DSP installation can ensure a maximum enjoyable sound output from the car audio. So, be careful and attentive before using a DSP. Also, remember to choose the best brandable DSP for car audio.

Leave a Comment