Of course they are inferior, but they also cost a fraction. They are a killer deal @ US$99.
Philips Microsystem:$99::Insignia NS-B2111:$40
Except, you know, they come with an amp and volume control, and sound better.
Perfect for the application you're describing...erm...how big is the room again, and how loud do you intend to listen? They do go decently loud for a master bedroom, which is where they reside currently, but I don't listen very loud.