> Digital Reconstruction Processor Adds Impact to Music w/Insufficient Lower Octave Levels> Built-in Selectable 12dB Subsonic Crossover 35Hz, 50Hz, 80Hz> Variable 27Hz-63Hz Frequency Sweep & Variable Center Frequency Q/Width> 13V Max 2-Ch/Stereo Low Level RCA Output & 2-Ch/Stereo Low Level RCA Input> LED Indicators of Maximum Bass Level> Dash Mount Remote Gain Control IncludedADDITIONAL SPECIFICATIONS* Frequency Response: 10Hz-100kHz* THD: 0.002%* S/N Ratio: 132dB* Balanced Input Noise Rejection: 60dB