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% Dimensions : 4.60"W x 1.45-InchH x 7.30-InchL