GIGA 6x9's in doors using the pods available (1000w peak each speaker/350w RMS) Why would you consider these to be good speakers? The guy's asking about an ultimate setup and these speakers are full range, component speakers are always better. Also a 3 way setup as I suggested will put the midbass in the doors and the main vocal speakers which are very directional in the kick panels which means that you will have more of an equal distance between the two speakers and the listener(s).
uprated rear speakers, i cant remember 100%. but i think the average output on the same make as the GIGA ones were, 500w RMS from the pair. so thats 1000w peak.What size uprated rear speakers are you talking about? 5.25"? a 5.25" speaker with 250wrms is such a waste and I can't see how it could possibly use all that power.
These GIGA speakers are crap and the are actually made by boschmann who make some of the worst speakers i've ever heard.
so just with that 3000w top vocals. a decent 4 channel amp will be enough to power them.What would you consider a decent amp, I would love to see a couple of examples. Ideally you want to match the amps power to the speaker power, so you will be needing 1200wrms then just for the mids/high range. I've not seen many 4 channel amps which are capable of that. A D-class subwoofer amp which doesn't sound as good as a normal amp needs about 80-90amps of power to run 1200wrms. I think a normal alternator puts out 60-80amps, where is all this extra power going to come from? You still need to add a bass amp yet.
The reason I said to use two separate amps is for stereo separation to prevent the left and right signals getting mixed like you do on integrated amps.
2 pairs of tweeters scattered around the car, which you could run from the same amp by bridging or just run them direct from the head unit. Would you not use a x-over inline with the tweeters? Also why would you need two pairs when you would already have a set in the 6x9's and a set in the rear speakers?
your gona need a real big box for it to reduce the rattle.
is it true that there is less rattle and the bass is better, using a bass tube? as my mate claims that it was the case when he did this in his e30, but i didn't here it so cant be assured Rattle isn't good because is sounds bad and can distort the bass which is being produced. A little bit of rattle won't hurt depending on what's rattling and what is connected to it. In your case you've got alot more to worry about than a bit of rattle.
I could have wrote more but got bored.