HiFonics ZXi 8006 5-Channel Amplifier The Hifonics Zeus ZXi8006 3/5-channel amplifier is easy to install and perfect for trucks, pickups and two seater sport cars. Crossover And Switching For Channels 1 & 2 - Variable 12dB Octave Hi-Pass, Variable 24dB Octave Low-Pass, +-18dB Bass Boost at 45Hz Crossover and Switching For Channels 3 & 4 - Variable 12dB Octave Hi-Pass, Variable 24dB Octave Low-Pass, +-18dB Bass Boost at 45Hz Inputs and Diagnostics - Variable Input Level Control, Power and Diagnostics LEDs, DC Short Circuit Protection, Over-Load Protection Connector Types - Unbalanced Inputs (RCA's), Full-Range Line Outputs (RCA's), Molded 4-Gauge Power Inputs, Molded 10-Gauge Speaker Outputs