Brother , wait sometime
till you get , 9k
i found Vtrek Amplfier is good for powering 2 308d2
according to amplifier specs , it can hit 750Wrms @ 2 ohms , thats enough for 800Wrms sub ,Esp 308d2
I know MA Audio , 4 channel is just Ok , OK only to run sub
I give suggestion for Vtrek , you can get this mono in 9k
other wise you may get 2nd mono in 9k