I've been experimenting with mid priced combo amps the last month or two. Tried a Rivera Chubster 40, Genz-Benz Black Pearl BP30 212, and Mesa Boogie Lone Star Special 112. Blues is my preferred music. To my ear, these rank Mesa first by a fair margin followed by Rivera/BP different but equal. In a quest for perfect clean blues tone. From what amp in this price range (or less) do you get your favorite clean blues tone?