I know nothing about the Dynavoice, the Klipsch on the other hand is big, loud and probably a bit unruly. I say probably because although I am familier with some modern Klipsch designs I have not tried that specific model.
The 2050i is more 'britsh', a little more reserved and easier on the ear, particularly when listening for some time.
If you have the space and want 'party' levels go for the Klipsch, for more 'refined' hi-fi listening, get the Q Acoustics.