ive used hifonics, the amp i ahd was awesome, i used to have the Hifonics BXI 1610D(monoblock), on 2 10" L5's and i never had any problems with it, so id go hifonics, how much is the hifonics? bc i found it on sale for $412.00.
like when i had my kicker hooked up i was usin an 8ga power and ground, so it when i would turn my radio up loud it pulled so much it made the amp shut off and come back on, so i had to go to a 4ga, when it does that its clipping
i had to fix a friends 18" jl i dnt remember which one it was but it was doin the same thing, i juss put a lil caulkin on and it worked fine and it aint broke apart or separated since.