I need help figuring out how to run 8 speakers on a 4 channel amp. Two speakers per channel right? The front two channels would be a 3 ohm 6.5 coaxial and an 8 ohm 3.5 full-range driver. The back two channels will be an 8 ohm 6.5 driver and a 4 ohm tweeter. I don't know how to calculate the overall resistance between the speakers in the system or even how to wire them to be compatible with my 2 ohm stable amp. Any help would be greatly appreciated.