Replacing the company's superb AudioStation, Pure-Fi Elite ($300) is a same-priced, highly similar update to last year's design. Still packing four powerful speaker drivers within the same all-in-one enclosure, Pure-Fi Elite uses two 1" and two 4" speakers to produce full-frequency, clean sound at anything from mild to ear-punishing volumes, with bass and treble controls to let you achieve your preferred sound balance. A digital clock in the middle…