From what i gather the stock infinity amp is a six channel amp with two channel's going to each factory sub which have dual 2 ohm voice coils. This is 35wrms per channel or 70wrms per sub.

So lets say you have a 4 ohm 12" sub in a sealed box and you want to bridge all four channels into one. The problem you get that you split the resistance by each channel so it would become a 1 ohm sub which im not sure the stock amp can handle. But would an 8 ohm sub work? is it even safe to bridge four channels together?


I have also read that the stock amp is a four channel amp which means that the two voice coils of the sub would be in parallel for 1 ohm which would solve my issues. The sub i have has a selector switch for 2 and four ohms.