I am just starting my audio education. There is such huge range of equipment available that I would like to maybe learn a few rules of thumb (if they exist) befor I start demo-ing. I would prefer not to waste my sellers time or my own. I have been researching equipment for a two channel system with a total budget between$5-6,000. It will play in a fairly large room with hard surface floors that is an "L" shape, 9' ceilings with about 14'x25'. Asthetics are somewhat important(married) as is the lack of speaker placement options. I would like to hear from anyone using omnidirectional speakers ie. duevel, or, those with horns. Are there certain sounds inherent to certain designs? Music taste between my wife and I ranges from ac/dc to opera. I have not been able to search this site for the info I crave. please help.