I would go with this one http://www.sonicelectronix.com/item_23827_Hifonics+Zeus+ZXi60.4+%2B+1K.html
My friend has the Brz 2100.1 in his car pushing two L7 like no other.. i think this is the year for Hifonics especially compare to the old brz the new ones are
way better and i believe the Zeus is like the Brother of the BRZ just more channels to push out