wanting to put a system in the car

[shizz 10+ year member]

im wanting to put a system in my car. im wanting to put in a 15in audioque hdc3, but would the aq1200 not be enough to power it. also at what hertz would it make it sound good. i like the lows to be heard but the highs to be heard as well. I had 2 type rs in a 32hz box and it knocked. but inputs would be nice. also gauge of wires. big 3 upgrade as well? and would i need an extra battery in the back. system will be in a ford focus zx4. alpine headunit in already. any inputs would be nice. thanks

-shizz

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