I'm planning on upgrading the front components and adding a small 2 channel amp to power them. I'm not looking to spend more than about $500 on the speakers and amp in total. I'm not a huge base freak, so since I listen to mostly acoustic/rock/country. I want speakers that have really good mid base, and sound neutral. I'm going to keep the rears in for now, I might end up adding a sub in the end but it will be after I do this install. Any thoughts?