Digital Grabber posted a review on the Antec Sonata II Silent PC Case

The popular piano black case is equipped with Antec's unique advanced chassis air duct for increased cooling of the latest CPUs and graphics cards. The air duct is rear-vented to help improve silence, and can be adjusted in three directions to ensure that the opening is always directly positioned above the CPU for maximum cooling. Additionally, the Sonata II features a single rear 120mm TriCool fan with an adjustable three-speed switch, as well as 120mm, 92mm and 80mm fan mounts, providing highly configurable cooling and air flow options.

Antec Sonata II Silent PC Case Review