2-In / 2-Out Line-Output Converter with Digital Bass Reconstruction Active 2-Channel Bass Restoration Processor and Line Output ConverterDesigned for Use with Factory and Aftermarket Audio SystemsSpeaker-Level Inputs Handle up to 30VLow-Level RCA Inputs Handle 150 mV – 2 VoltsRCA Outputs Provide up to 9.5 Volts of OutputAdjustable Parametric Bass Controls to Add Bass Missing Due to Roll-Off from Factory Car StereosAdjustable Center Frequency and Width of Bass EQ ProcessingAuto Turn-On via DC Offset or Audio DetectionLoad Selection Switch (20, 60, or 20K Ohms) to Prevent Factory Stereo Shut-Down12 Volt Turn-On Output for Aftermarket AmplifiersSelectable Ground Isolation Switch to Eliminate Ground and Alternator NoiseMolex Terminals for Speaker Signal and PowerWired Remote Bass Level Control IncludedLED Clip IndicatorTotal Harmonic Distortion: 0.005%Signal to Noise Ratio: >105dBFrequency Response: 10-20,000Hz