Whether you listen to death metal or nature documentaries, the Bowers and Wilkins B&W 685 S2 are an astoundingly good set of speakers and an excellent deal at this price level.
B&W 685 S2
The B&W 685 S2 come from a long line of excellent speaker designs. They may not look amazing, but the sound they make is simply gorgeous for the price. If you are looking to spend a little extra on speakers, you simply have to try these first.