I'm replacing my 22 yr. old Rogers bookshelf speakers. I bought a 100 watt sony receiver, and would like to spent no more than $600, though less is fine. I'm NOT an audiophile, but I'd like a really good pair of speakers. I listen to a lot of chamber music, gregorian chants, some rock, blues and other vocal music. no symphonies, modern classical or hard sounding music. my living room is 15' square and has a 7' wide opening onto the kitchen, which is 8' x 15'. There's almost no way for me, without a local store to listen to anything in, to find enough information to make an informed decision. Hope you can help, without lots of technical info, please! Thank you.