Hello all. Ì've only been registered two days and have been busy reading some of the great posts here. My last stereo system was purchased 20 yrs ago. I'm just beginning to look into a new HT setup for myself and the technology is sending me for a loop. I saw an ad for an amplifier that was advertised as "balanced". I've seen balanced used also with inputs, outputs, and interconnects. If anyone has a bit of time, I sure would appreciate an explanation. I could also use a quick definition of what a pre-out is. Sorry if the questions seem mundane for you pros out there, but I'm really starting from scratch. Thanks ahead for any help.