In ceiling speakers question
We have just moved into a new house that already has speakers built into the ceiling in 4 different rooms. I would like to get a receiver that will allow these speakers to be utilized. I want them to all play the same sound all at the same time as the speakers have knobs on the wall that can control the volume in each room. There are 4 pairs of speakers located in 4 separate rooms throughout the house for a total of 8 speakers. The wiring for all the speakers comes through all together in a media closet. My question is what do I need to purchase to make this work and how tough would it be for me to set it up myself? Or is this best to have a professional come and install?