Marantz SR5010 7.2 4K Network AV Receiver (Certified Refurbished) This Refurbished product is tested & certified to look and work likenew. The product includes all original accessories, original packaging and is backed by a 1 year warranty. Authorized Dealer. Award-winning customer service. 7.2 Channel Full 4K Ultra HD - Packed with the latest audio and video technologies, the Marantz SR5010 sets new standards for audio and video performance. Featuring Dolby Atmos immersive surround decoding, delivering breathtaking surround sound with today's advanced movie soundtracks. With 8 HDMI inputs supporting HDCP 2.2 and 4K Ultra HD Full Rate with HDR and BT.2020 support, the SR5010 features an advanced video processing system with 4K upscaling. Equipped with the latest Audyssey Silver suite of DSP technologies, the SR5010 features Audyssey MultEQ XT automatic room acoustic measurement and correction system, which provides higher precision digital filters for the satellite and subwoofers compared to the base MultEQ system, and also allows for measurement at up to 8 locations in the room.