Your taste in music will have nothing to do with the speaker, since what makes it good for classical will also make it good for rock, metal, jazz, folk and so on. This is because its impossible to make a speaker favor a certain genre; if someone is able to do so they would be a millionaire overnight!!
The ability to play loudly without effort and full range is not a particular qualification. All forms of music sooner or later will be loud and have deep bass.
If you want good bass without breaking the bank, a set of Swarm subwoofers from Audiokinesis are very nice for the task. What’s nice about this is the main speakers are then freed from having to go deep in the bass but otherwise don’t have to take a back seat for either resolution or efficiency. This is because below 80Hz bass is omnidirectional due to the physical length of the bass notes in the room. Using the Swarms (which are a Distributed Bass Array system) the bass will be correct to 20Hz everywhere in the room and no one sub has to work all that hard. So you can set up a state of the art system without state of the art pricing.
