Okay, so I ran into a new amp today. Its a monoblock 600w RMS amp. I have dual svc subs at 4ohms and I was wondering if I should be wiring them in parallel or series? Because I looked at the sonicelectronix diagram for dual svc subs to monoblock amp and it looks like series but I thought to get to 2ohm (which is what I wish to do) I would wire parallel. Am I correct ? or backwards?