I currently have an Energy 5.1 Take Classic System. I purchased it after a bit of research and I love the speakers; however, the subwoofer lacks that extra level that I want. I have an Denon 1513 receiver. The current sub that comes with the Take Classics is a 200 Watt, 8 inch firing woofer. So my question is, does anyone have experience with/recommend a subwoofer thats more powerful and can hold its own better than the current Energy one I have? The energy one works great for movies but for music it's not that great and that's what I mostly listen to.