i am wondering the most efficient way and powerful way to wire to 12 inch kicker comp single 8 ohm voice coiled subs to a mono kac 9104d amp. the hole 4 terminals is a bit confusing. i had a rockford amp 400.2 hooked and bridged the amp and had the wired parrallel and it hit way harder and sounded way better than my new mono kenwood amp. im kinda dissapointed, bought the amp as an upgrade, now it seems to be a downgrade