Equalizers & signal processors

The right equalizer or signal processor is the key to fine-tuning your music in the car. Overcome road noise and hear music that's crisp and clear, even at highway speeds.

• An equalizer adjusts frequencies to improve your system's sound, helping you compensate for the noisy listening environment of your car or truck.
• A signal processor uses digital signal processing (DSP) for sound adjustments that are even more detailed and comprehensive.

If you're keeping the factory stereo, a signal processor can be especially helpful for removing the limitations put on the music by the factory radio, giving you a clean, flat signal to feed to your external amplifiers.

Here, we'll explore the different groups of products you'll find in this category. For a more in-depth explanation about what they do for your music, read our article about fine tuning your car's sound and our guide to choosing an equalizer.