No but they get convincing audio experience from using them and they are very tiny speakers, as are ear buds. Who would buy a sound bar for chest pounding anything? How to get that kind of performance is not a mystery anymore. A lot of people don't like loud entertainment but like better SQ. Heck, I am finding that someone my age that listens above 80db is quite rare. The internet is full of small speaker reviews that have nearly cliche'd the notion that "They sound like a much larger speaker." To me they sound like small speakers, but I mostly have owned large ones most of my audio life.
Ear buds and headphones are very popular now. That is what threshold many people are coming from and to them, a soundbar must sound huge.