Ohm figuration question and MANY more big questions

[cnyle]

Ok I was looking at installing horns, midrange and midbass as I am seeing it as a growing choice in alot of cars around here
my question is what will any of the following setups give me a 4ohm or 2ohm configuration?
1) 8ohm horn, 4ohm midbass, 2ohm midrange
2)8ohm horn,4ohm midbass,4ohm midrange
3)8ohm horn, 2ohm midbass,2ohm midrange
4)8ohm horn,2ohm midbass,4ohm midrange

Next can anyone point me in direction for calculations to figure out crossover points for my speakers?
like what coils, caps I will need to make this happen etc...

Would I be better off with 8 in door with 5.25 and horn under dash
or 5.25 in door, with 8 and horn underdash
or put all three under dash?

[Paul]

Why are you running them all passive ? Besides, when you use passive crossovers, it is best to use the same impedance for all the drivers. The "load" the amp will see is what the crossover presents it. Use active crossovers instead and put the mids in the kicks and the mid/bass as far down and forward in the front door as possible

[cnyle]

Well couple reasons
1) i was thinking maybe I could lower amount of amps needed
2) I was told passive crossovers can be designed around the impedence of the speakers invidually but will present the actual load to the amp, just as wiring multiple subs would present the actual impedence tot he amp..

[HardAssBass]

If you were to wire these speakers in parallel the impedences would be:

1) 8ohm horn, 4ohm midbass, 2ohm midrange
= 4.57ohm load

2)8ohm horn,4ohm midbass,4ohm midrange
=8 ohms

3)8ohm horn, 2ohm midbass,2ohm midrange
=2.67ohm load

4)8ohm horn,2ohm midbass,4ohm midrange
= 4.57ohm load

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Pioneer 7300 HU
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