Gravity GR-EQP11 Digital Bass Machine Car Audio Equalizer - 4-Band Parametric EQ,12 dB Boost/Cut, 9V RMS Master Volume, Subwoofer LevelFrequency Control, 30V Bipolar Power

TUNING - Four-band parametric EQ provides detailed control over key audio frequencies, allowing you to shape low, midrange, and high-frequency response for a more balanced, personalized in-car listening experience. , PRECISION - Each parametric EQ band supports up to 12 dB boost or cut, giving installers and enthusiasts the adjustment range needed to reduce unwanted peaks or bring forward frequencies that need more presence. , OUTPUT - Master volume control delivers up to 9V RMS output, helping provide a strong preamp signal to compatible amplifiers while allowing convenient overall system-level adjustment from the equalizer. , BASS - Dedicated subwoofer level control makes it easy to raise or lower bass output independently of the main speakers, so you can adapt low-end impact for different music styles and listening preferences. , FLEXIBILITY - Subwoofer frequency selectors help tailor the bass section to the vehicle, speaker setup, and enclosure characteristics, supporting smoother integration between subwoofers and full-range speakers. , POWER - On-board 30V bipolar switching power circuitry supports stable operation for the GR-EQP11's equalization and bass-control functions, making it a practical signal-processing component for car audio installations.