Yea thats what Im gonna be doin. 6 sets of 6 1/2 compenets. Two up front (1 in the door and 1 on the floor) and a custom bracket for the rears. Like I said before for the money a 6 channel is best but for practicality I would do seperate amps. Plus you can get more power from two amps were with a 6 channel you are limited. For exaple I have a 700.5 kicker in my beater (90 toyota corolla) works great good balance all around.

 

As for boxes and ports. A sealed box is gonna be tight and deep. The bigger the box the lower the bass note will go. As for a ported box they are good for loud bass but you will lose some low notes and tightness. It all depends on what music you like

 

Rockford makes 6x9 components,Thats what I would use for the rear.

 

Here comes the ohms question.

I see that almost all of the car speakers have a 4ohm dependence, What exactly does this mean? I am pretty sure RMS is the minimum power the speaker needs to function correctly, right? In order for me to match up speakers to amp I believe that the rms watts have to be the same as the speakers, but the only problem with that is that 4 ohms on amps are like nothing and in order to get them matched up correctly I would have to step up too amps that are twice as expensive as what I would like to pay. So my main question's are can I power speakers by 2 ohms even though they are 4ohm dependent? and If I could would it decrease the life of the speakers or damage them in any way?

Sorry about all my questions its just that I want to know that I am doing this correctly.

 

Ohm is the amount of resistance, car speakers are 4ohms and house speakers are 8ohms. The less ohms the less resistance the more power in basic terms. RMS is root mean square, which basically is the average power. Your RMS do not have to match but the closer they are to each other the better. Although its better if your amp RMS and peak is lower then your speaker or speakers. For your last question im sure you can do that but i would not suggest doing it since some thing is bound to happen, im think some one else here will be able to answer that one.

 

To answer your question... Your amp is going to see what you give it!! It cant make up it own "ohms". Now if you are running a new amp lik jl audios they have a power supply that will deliver the same power no matter what you give it up to .5 of an ohm. You do not have to perfectly match everything up. If you buy an amp thats a little higher power range you have whats called a "gain' on the side of the amp to adjust the power level. A speaker will say what ohms it is there is no changing it unless you add other speakers to it like I spoke about earlier with the subs. What setup are you lookin to do. For rears if your gonna go SQ you dont need to spend crazy money. You can do the same componets for the rear as the front like Im doin. Just need to customize a plate for em. Pm me with exactly what your gonna get.