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Linear design, one side matches the other(the basic aesthetic application of two amps if you entirely disregard their purposes.) If you go with two amps of the same kind, it will visually be comparible to the look of one amp, (draw a line down the middle of the picture and both sides will either be exactly the same or fairly close) Two amps of different size/design/etc wouldn't similar. Atleast that is why I like the dual amp setup ignoring any real purposes like powering properly and such. Sorry, that was probably a little more elaborate than I shoulda went into that. Anyways.

Now one thing I wanna ask about the Alto ADP204, it says it has a frequency range of 50Hz to 500Hz, won't that considerably limit the ability to do highs? And more so, can someone explain to me the usual frequencies for what would be consider high/mid/low. I get that like 100-160 and below is usually a low setup. Other than that, I'm not really very sure as to what frequencies fit where, and where the human voice fits into that. Sorry, I just wanna make sure I know this well enough going into this project. I finally have that income thing again, so hopefully I can get going.

On a side note, I wanna go ahead and take an approach to obtaining the drivers right now while I wait for the amps. I'm considering this for the time being:

16-MCH13000 5c Amp (1110wRMS x 1 @ 1ohm + 75wRMSx4 @4ohm)

I'll go ahead and keep running the kicker subs for now until I get my interiors setup entirely. (I'm staging out my advancement, costing a little more by doing it but I am content.) Now looking at it I see it like this:

Now all these drivers are 8 ohm impedance if I understand correctly(Please let me know if I'm wrong.) Now higher impedance means lower power if I understand it correctly. (Ohm's law and such). So 75/2(roughly) would be like 37.5wRMS(again, roughly) that would successfully be powered to say the Extremiis 6.8 and the Morel Tweeter, which it should handle fine, correct? It won't be like killer loud, but it'll work. Atleast for now. Then I have the Eclipse 8454 that puts out somewhere under 18wRMS. If I use that to power my Mids, would this all theoretically work or is there something I have overlooked. (Though I'm not sure how I'd set the cross over for all of these, and I would believe that I'd need a crossover for the midrange as well.) If anyone reading this needs more detail I'll gladly provide. I'd just like to work my way up like this:

Stage 1: Replace Stock HU (DONE when car was bought, an old Pioneer Premier HU)

I like this approach for most people to start, but damn, I definitely learned that Stage 2 can be bipassed or switched if the personally really wants the best experience. It also helps to be involved enough to be able to do your own searching/kick panel design/etc. I'm learning how to do some of this, but man, the options for most people in real life(atleast here) don't go this extreme.

Anyone able to give some insight to my "latest" post please?

Can I or can I not run of the HU and current amp? If yes, can someone go over it and make sure I have the right idea. If not, can someone explain why, would great appreciate that.

What about the 8 ohm impedance, did I grasp that correctly?

Also, anything on the frequency questions?

Thanks for the time!