I have 2 dual 4ohm voice coil 12" subs. I want to run them to my amp bridged. I am trying to run them to get the best performance. Should I: a) run the dual voice coils parallel, getting a 2 ohm load per speaker, then running the speakers in series to get a 4 ohm load at the amp? or b) run the dual voice coils in series, getting an 8 ohm load per speaker, then running the speakers parallel to the amp and get a 4 ohm load at the amp? The amp only gets 100 watts per channel, but if I bridge at 4ohms, it pushes out 300 watts (150 per speaker). Does it really matter how I run it? Or would one way be better than the other? Thanks.