We've seen Canton updating its speakers over the past several months, and now the refreshes have made their way to the Reference line in the form of the Reference 5.2, 7.2 and 9.2 DC. Getting top billing across these new speakers is the aluminum oxide ceramic dome tweeter, which Canton promises can handle more power and exhibit less distortion than the metal dome it replaces. To round things out, the floorstanding Reference 5.2 adds dual 7.5-inch woofers and a 7-inch midrange; the Reference 7.2 model swaps in 7-inch woofers but is otherwise similarly loaded. If stand-mounted speakers are more your thing, then the Reference 9.2's two-way design with a 7-inch woofer and the same new tweeter. All three are ready for you right now at $4,000, $7,000 and $10,000 per pair for the 9.2, 7.2 and 5.2, respectively.