new guy here looking for some help on a good set of bookshelf speakers for my living room. I have a set of polk RTI6 that I have had for 6 years and feel I could do better. my room is about 15x15 and a price range of 300-400 dollars. I have a 12" sub. I listen to 70-80's rock....I am kinda old school. any help appreciated and thanks!