Boss Audio AVA1404 7 Band 200w Max Amplified Equalizer with Remote Subwoofer Level Control

Control is the key to fine-tuning the response of your system. These BOSS electronic equalizers increase the efficiency of your system by directing specific frequency ranges to the speakers that can best reproduce those frequencies. You can drastically improve you signal-to-noise performance by adding an LD5 line driver to pump up your preamp line voltage. Ohe yeah, you'll be heard.