[jujumantb]

[quote="Anita_Head":a833f]I bought a 2 ohm stable amp. other wise they over heat and shut down if you make them run down to 2 ohms.
and if you want punch you need to wire them down too 2 ohms. you take both positive wires on one side and both neg to the other side. like the left channells you put both pos in to and the right you use the neg. then you get the pounding subs. 4 ohm amp wont cut it.
ohh and you need a crossover or you will fry your speakers.[/quote:a833f]
a 4 ohm amp wont cut it?... That doesnt make sense.. The actual impedance doesnt matter that much, its the power the amp puts out at that impedance. Many people run a 2-channel amp bridged @ 4 ohm, where it puts out full power....

And active crossovers are usually included on the amp... not using them wont necessarily fry the speakers either, alot of people run their interiors full range with no problem, you will hear massive distortion before you come close to mechanically blowing them (overexcursion), and thermally blowing them only happens when you send them too much power, not at all frequency dependent...