I'm finding that I'm having a hard time setting the volume or wattage to the different speakers and how to set it up..Is there a loud button, or setting for max volume...I have 1 center speaker, 4 front speakers, a base woofer, 2 sides, and 2 rear book shelve speakers.....I find to get a good rumble or good volume for action, my volume setting is on 20...i thought it would be more powerful..maybe the wrong receiver