The Denon AVR-3310 is an audio/video receiver manufactured by Denon. It is a mid-range receiver that was released in 2009. It features 7.1 channel surround sound, supports high-definition audio formats like Dolby TrueHD and DTS-HD Master Audio, and has HDMI connectivity for seamless integration with home theater systems. It also includes several audio and video inputs/outputs, video upscaling capabilities, and advanced audio processing technologies.