would anyone tell me how a surround processer work with my hifi system??or it's for home theater???thanks

Are you asking if it's for home theatre? or how to use one?

My receiver has that built in. It processes stereo signals and turns them into 5.1/6.1/7.1/9.1 sound. So you can watch movies in surround sound, or listen to music in surround sound. That's the simple answer