The problem with most speakers is not always the drivers, ie a 10" woofer or whatever. The problem is usually a result of the cabinet resonance and what frequency it resonates at. High mass speakers have a low resonance point. Bad for your room, sounds good in car stereos especially if you are in the car next to you at a stop light. The whole car resonates becoming a huge speaker. Lighter and or smaller speakers have less and higher frequency resonance, which is much easier to blunt.
