Originally Posted by TJElite
Just curious...why the 4 channel? I never really understand why some people do seperate front / rear amps. Unless you are just dying to fade front to rear. Think about it. You can buy a 4x50 amp, and put it on 4, 4ohm speakers, and get 50 watts to each. Or, you can do a 2x50 amp, put it on 4, 4ohm speakers, and get 50 watts to each (provided it is 2 ohm stable, and doubles power, which most good ones do). All you gain with the 4x50 is fading. I see you want to do more than that up front, with the 6 1/2 set, and the 4. As long as you do your passive crossovers right, and don't have overlapping frequencies, you can still get a 4 ohm load with this. If you don't plan on doing a true 3-way, I'd suggest not using the 4's. In fact, I'd suggest not using them period. A 4" driver doesn't add enough sound reinforcment, and putting it in the dash will give you path length problems, and poor imaging.
Toby
Are you suggesting he run his mids and highs in parallel so the 2 channel amp sees 2 ohms? At 4 ohms the amp is working half as hard, stays cooler, and probably has less THD than at 2 ohms. I do agree with not running the 4" speakers or rear speakers (although a nice set of 6x9's will help with midbass). Id run a nice set of 6.5" separates on a nice 2 channel amp (JL 300/2 maybe) and what car are you putting 4 12" subs in?
That amp wouldnt work for you setup. Too much power for the fronts, not enough for the rears, and nowhere near enough for subs.