Hi guys I have a problem and hope you can help me.I know about CarHifi n bissel but just n bissel… well anyway… I have a Jensen Mercury 4000 power amplifier this has 4 channels and 400 Watt.Can you run as a 2,3,4 channel. so jetz is my question…I have a Infinity kappa 120wb bass roller…and I want to run it with the Jensen power amplifier.How can I do that the role gets the whole 400watt..