Suggest a good car audio system?

Hi. I'm Rahul. I want to know how to make my car audio sounds better. I own a ford ecosport. And I want to make my car audio sounds great. Please suggest me for it. I'm having 2 woofers. One is 1300 watts and other is 1100 watts both are pioneer make champion series. Can I make a box and place both the woofers in my car. Is it possible. And m also having a jbl basstube 1100watts. And am having 2 amplifiers one is v12 and other is sound blaster make both are 4 channel. Please suggest me if I can make any combination with all these. And can they sounds great.

Personally, I would sell what you have and invest in a single, good sub, and a single amp to drive it, or some form of 3 or 4 channel amp to drive your front speakers and sub.

Aa I found out with my friends Sundown E-10, it's better to have one good sub, rather than 2 or 3 bad subs!

You'll never come up with a good sounding system mixing all that random gear. If you want more than one sub they should be identical.
I think if you use the better of the two pioneer's you have, put it in a good box and power it correctly you'll be surprised what one decent sub can give you.
To go with the bass you need a good pair of front speakers driven with adequate power. That is usually 50-100w rms per side.

A 4 channel amp might work for a set up like this (2 speakers, one sub) by using two channels to run the speakers and the other two to run the sub. In a lot of cases though - the sub ends up being under powered, especially if the sub has dual 4 ohm voice coils as many of Pioneer's subs do.

It all depends on your budget. Pioneer champion are good speakers for the price. They are #1 as far as sound quality and don't use alot of rms. If I was you and you not trying to spend too much money go with the best pioneer speaker that you have and just get a amp that is compatible with your sub as far as rms, and have a good enclosure that is compatible with the sub. The box is one of the most important part of the sounds it displays out. Once you do that I'm pretty sure you will be happy. Pioneer champion has one of the best sq out. Which means very clear bass, Especially for the price.

Not enough information Rahul. For best advice please suggest exact model numbers of each item