Smallest speakers that ROCK

Don't want to deal with back breaking speakers to get the volume, bass, and dynamics required to satisfyingly reproduce rock music. I know this is defying the laws of physics, but has anyone heard a pair of speakers that can be carried one under each arm that can truly ROCK? Can be active or passive, price new or used under $5000. Please no sat/sub systems as I have never heard one that seemed fully integrated soundwise.