Advanced Design for Higher Quality SoundClass-D Amplifier: Each DM series speaker produces pure, balanced bass sound thanks to a new Class D amplifier with 96kHz sampling DSP.DECO Convex Diffusers: Another advancement from the DM-40 model comes in the updated design of the DECO convex diffusers which help deliver crystal-clear high frequencies in every direction, so you can enjoy a wide sweet spot and 3D stereo sound wherever you are in the room.Time Alignment: The woofer and tweeter are perfect..