Sure, you can run all four speakers off of that amp. However, there are some advantages and disadvantages to doing so....
1)Amp will over heat easier(minor problem)
2)Amp must be 2 ohm stable
3)Power of the amplifier will double because there is less impedence(good when considering power)
4) SOund quality may decrease due to running the speakers at 2 ohms(minor problem in most cases)
5) YOu will loose the ability to fade between the rear and front speakers...and will loose all front/back sound dimension coming from surround sound(minor problem).
How to:
1)run the front left and rear left speaker wires in to the left channel. There will be 2 neg wires running into the screw terminal. There will be 2 pos wires running into the pos screw terminal.
2)repeat with right side
-pretty simple
Some people might just recomend powering the fronts off your 2 channel amp and running the rear speakers off your deck. That is what I did, and it worked the best for me. Its up to you though
