Dear all sifus, 1st post in this section so bear with me. i need advice on I.C.E setup.

currently doing entry lvl system, but nowhere there yet.

car: 1st. gen vois
H.U: pioneer 5950
component: all stock (2 tweeter,2 front, 2 rear)
pre-amp: 1 calibre pre-amp
sub: 12' Hertz
amp: cap ayam, straining it to the max but woofer still sounds like tofu
cable: my installer said all my cables use good one, 8 gauge, or whatever

question:
i'm not satisfied with the tofu bass, no hard deep punch. so the installer guy suggested to add 1 mono block amp, tested and true enough its good, but covered all my comp. sound.

money dont come easily now, so i wont be upgrading at 1 go. I hope to get advice in the order of how and what i should upgrade.
I believe the next thing to change is component set and tweeter + crossover(whatever that thing is). Please suggest a nice set with relatively cheap price tag (below 1k).

next do i need to throw away my pre-amp? it's there because i was reluctant to change the stock head unit last time. now whether it's of any use or not...it's a mystery to me.

then i should be focusing on the amp / sound-proofing? but then again, amp is the heart of sound system...and yet i'm putting it last. that's why my question is so tricky...

sigh...so difficult...maybe give up and save in maybank...hahaha

thanks for reading and giving advice

wow...errr sorry i newb, cannot understand i.c.e language. i dont know what is staging/amp gain. hmmph...

box + woofer is made and recommended by the installer.