The Opera Riva Diamond features a newly developed midrange driver with an ultra-powerful 1.8 Tesla drive. This exclusive midrange driver is manufactured by Accuton and is currently the top-of-the-line midrange driver in the Ceramic series. Together with the tweeter featuring a 30mm diamond cone, the best available crossover components, the all-pure silver wiring, and the innovative cabinet design, all components represent the current state of the art in loudspeaker construction.