have head unit and highs, mids and lows...do I need an amp?

chadpadams
chadpadams Posts: 13
edited June 2009 in Basic Hookup/Wiring Questions
I drive a 2003 Jeep Liberty, the speakers have blown out so I was lucky enough to get to buy a whole new system (BLESSING in disguise).

So I purchased 4 Polk db6501s that come with tweeters and passive crossovers.

The head unit i got was a pioneer DEH-P4100UB
http://www.pioneerelectronics.com/PUSA/Products/CarAudioVideo/In-Dash/CD-Players/DEH-P4100UB

I originally bought this head unit so i wouldn't "have to buy an amp" to drive the speakers and my sub (I have a JL W0 12" in a sealed box that i will also use.)
but once i did further research everyone seems to think otherwise.
I don't really have the $ to buy much else...but if the speakers will be damaged, i might just have to break down.

Question 1: do i need to use the crossovers that came with the speakers?
seems like the head unit has one that is active...is that sufficient?
Question 2: do i need to buy an amp to power these speakers to prevent damage from too little power?
Question 3: if i do need to buy an amp can i just get 1 to push the speakers and the sub or do i need one for the high and mid and one for the low?
and if i do need an amp, what brands should i consider? keeping it cheaper price-wise?

i am a musician, so i am concerned about high quality sound and have a pretty good ear, but this is the first time i have dealt with buying a whole new system for a car...

thanks in advance for any help/advice!
Post edited by chadpadams on
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