DescriptionMax. Bass ControlDash Mount Remote ControlPFM Subsonic Filter & Bass Level ControlIlluminated logo and knobsBrushed Aluminum Case & Handles Chrome Logo PlateBass Restoration Lighted Display Parametric Bass Control PFM Subsonic Filter Balanced InputsBass Output Control PWM High Head Room Power Supply Output Level: 13.5 volt Frequency Response: 10Hz 100KHzTHD: 0.002%S/N Ratio: 132dB. Balanced Input Noise Rejection: 60 dB