Currently I'm in the process of planning out a system to power my front and rear speakers. Currently I have the Alpine 9827 head unit, with front and rear Alpine speakers, as well as the Alpine MRP-F240 4-channel Amp on the way. I had planned on running 2 RCA Cables from the 2 pre-outs in the head unit to the 4 Channel amp, but today i found a small 2 channel sony amp that would be perfect for running my front speakers with. This would allow me to bridge my 4-Channel amp and use that to power the rear speakers with more power.
Now for my question. Can I run only one RCA cable to the 4-Channel Amp and still be able to bridge the amp successfully? When Looking at the Amp, it seems as if one RCA Input is for the front speakers, and the other is for the back speakers. Do I need Both Front and Back inputs to bridge the amp just for powering the rear speakers?
I hope you understand my confusion. Thanks for reading