Features 2 Channel Digital Bass Restoration Parametric Bass Equalization Variable Center Frequency Control Selectable Balanced/ Nonbalanced RCA inputs Selectable Ground Isolation Switch Selectable Bass Output Control PWM Power Supply Illuminated Logo Dash Mount Remote Control W/ Selectable Subsonic Filter Specifications PWM Power Supply Maximum RCA Input Level: 14V RMS Maximum RCA Output Level: up to 13V Frequency Response: 10Hz - 100KHz ; +/- 1dB Total Harmonic Distortion: 0.003% Signal To Nois