Kung full active gusto as stated in your title, then start with a head unit na full active capable, (Alpine CDA 9887, Pioneer P800PRS, those kinda HU) then a total of atleast 5 available channels collectively sa amp if front stage lng gusto mo, pag pati likod atleast 9 (basta key is every speaker including tweeters should have it's own channel from the amp, or parallel wire mo, just make sure na magkakasama FL/FR/RR/RL mo) (1 mono and 1 4-channel) mono for subs then connect mo sa SUB output ng HU, ung isang 4-channel mo kabit mo sa front output, then each channel would power your midbass and tweets, same for rear which is connected to rear output of HU, di mo na kelanagan pa ng crossovers even if your speakers comes with passives, as for speakers, wag coax kasi the tweeters are integrated sa mids so ndi mo sya macocontrol independently, sa subs na 8" I think may nagbebenta before ng solobaric na 8" L7,

, for seps, RYAN Audio, medyo budget, highend are Morel, DLS, Rainbow, check Hertz na DSK, ganda! goodluck with your Active Setup!

if you need further help just PM me