Update: Made a few changes on my chop-chop system.
1) Changed head unit from P880PRS to P800PRS
2) Rewired my front speakers so that the left midbass and left mid+tweeter goes to Ch1 & 2 of my amp and the right midbass and right mid+tweeter goes to Ch3 & 4. Supposedly for better channel separation.
3) Adjusted levels on all amps. (still needs more work)
4) Adjusted crossover points and slopes
5) Adjusted EQ and TA
Things to do in the coming weeks / months:
1) Replace Rainbow Profi midbass drivers with Rainbow Profi Vanadium Kick midbass drivers
2) Properly level match amps and head unit
3) Deaden the doors some more and hopefully, deaden the floors too
4) Replace the subwoofer amp with a Sinfoni, Genesis, Zapco, Tru Technology, or Steg amp.
5) Get the pillars done
6) Upgrade my ears

7) Change the wirings

Change my Sinfoni 50.4x to a Sinfoni 120.4x
9) Keep on upgrading... lol
10) Sell unused items para naay pang date ni commander... hehe