The SONY XBR55A9G 55 Inch 4K UHD OLED HDR Smart TV - 54.6 Inch Diagonal is the latest, most inspiring OLED masterpiece, powered by Picture Processor X1 Ultimate. Sony's best processor ever works alongside Pixel Contrast Booster technology to deliver unbelievable picture quality with 4K HDR clarity. Bright, vibrant colors, absolute black, and stunning contrast come to everything you watch. Acoustic Surface Audio+ brings 2.2 channel sound right from the screen.