surround speakers

I recently reset my Yamaha unit and reconfigured it using the mic and everything but listening to music the sound is noticeably less full. Volume as well is quiet and it seems to no longer use my 7.1 surround system correctly. Is there any way to assure its using the full 7.1 system? I've...

I am a noob with audio, don't understand it in the slightest. Messing with my settings in Realtek audio manager trying to figure out what speaker fill and enable bass management do etc. I noticed that when I click the rear, center and sub speakers to test their audio they do not work. Front L...