I'm a real newbie to car audio. I have 2 DB Audio 12s that are 700w 4-ohm DVC and 2 hifonics 300w 4ohm DVC. I am putting them on a Hifonics Gladiator 1400.1 . I need to know how to wire the subs. Series or parallel ? What ohm load should they have after wiring. I want them to have a lot of bass but I also want them to last. What's the best way??