I purchased the Philips HTS3051B Theater System to enhance the viewing experience of my Vizio television. This isn't the greatest sound system or even the best I have in my house, but since it's in a smaller size room it's more than adequate. I purchased this system so I could hear frequencies below 50hz and to enhance sound above 85 hz. This system does a great job with sub-bass and it improves all human voice dialogue without constantly adjusting the settings. The Ipod dock is a nice added feature, but since I don't personally own one I have no use for it. The only draw back to this system is that I couldn't use it in a bigger room because it didn't sound good once it went past a certain volume. In order for me to use this system in a big room I had to increase the volume so much that sound started to distort, which made watching movies unbearable. I will stick with the Philips Theater System because it works well in a small room, but I wouldn't recommend it for a large living spaces.