Yes, if you get a sub at a later date you can just get a mono amp or sell your Two channel amp and get a 4 channel amp and bridge the subSo does that say that if I only wanted to amp my components I'd only need a 2 channel?
In short the processor controls the system, tells each channel how much output and so on. Also allows you to disconnect your battery and not lose the settings2 channel i believe means 2 speakers i.e left and right, if you had 4 channel you could do left and right and then bridge 2 channels for the sub, or you could do front left and right and rear left and right which would use all 4 channels, not sure what the processor does as im not that clued up my self.
Yes you need to know your RMS of you speakers and make sure the amp is more than that.Ahh I see, thanks mate, would I have to check the details of my components before I go buying an amp, don't want to buy one that isn't going to work properly or not be good enough, the processor system does sound good. I can't see me getting a sub as I need boot space but I do also want to change my rear speakers so I'd probably be better getting a 4 channel, so I could do the front left, front right, rear left and rear right