The Earthquake Sound EQ-4000BT v2 is a game-changer for anyone looking to take complete control of their mobile audio system.

With its 1/2 DIN 4-Band parametric equalizer, you can make quick on-the-fly adjustments for real-time tuning that's critical for any audio system.

Plus, with four input source options available, you have maximum flexibility for a better listening experience.

The subwoofer level and crossover frequency controls are also at the front panel, making it easier to tailor low frequencies to your listening preferences.

Whether you're using this for personal or commercial audio systems, the EQ-4000BT v2 will give you the ability to get the most out of your audio system and control the sound to suit your musical taste.

Don't miss out on this incredible product!