Max Bass Control Dash Mount Remote Control - Bass Restoration Lighted Display.PWM High Head Room Power Supply - Frequency Response: 10Hz - 100KHz.Balance Input Noise Rejection: 60dB - Parametric Bass Control.PFM Subsonic Filter - Balanced Inputs.Bass Output Control - Output Level: 13.5 Volt - THD: 0.003% Boost your bass with this Optidrive Digital Bass Enhancer. This unit connects in-line with your current amplifier and speaker setup and has mounting holes for easy attachment to your system. Adjust the strength of your bass, which frequencies to boost, and use a subsonic filter to weed out unwanted noise. High headroom power supply ensures a high-quality signal with low noise. Lighted display for easy control and great looks. Inputs & outputs over stereo RCA.