All receivers have not been used. Boxes were opened for verification upon original purchase. 100% working. About the Denon DBT-1713UDReady for surround sound?Been looking for an excuse to add surround sound to your TV room? The DBT-1713UD may be the catalyst you've been waiting for. With built-in decoding for high-resolution soundtrack formats like Dolby® TrueHD and DTS-HD Master Audio, this player ensures that your movies sound as good as they look. Plus, you can enjoy high-resolution audio formats like DVD-Audio and SACD for uncompromised sound quality and even surround sound from your favorite music artists. The supplied HDMI cable can deliver 1080p video and up to 7.1-channel audio to your HDMI-compatible receiver for a true theater experience.Going the extra mile for great picture and soundThis sturdy unit handles almost any format you can find, and is designed to ensure the highest quality picture and sound out of those high-resolution formats. The solid chassis features a fully shielded disc mechanism to reduce vibration and noise for precise playback. And the fan-less design makes this player run quietly enough to enjoy movies at low volume without drowning out dialogue.High-res audioNetflix streaming and a USB portIn addition to handling a wide range of compatible physical media, the DBT-1713UD is Internet-ready, so you can stream movies, TV and music from services like Netflix®, Hulu®, VUDU® and YouTube®. An Internet connection also provides access to the ever-expanding offerings of BD-Live™— downloadable bonus content available on many Blue-ray discs. You'll need a place to store that digital content — fortunately, Denon provides two options: the player's built-in storage, or your own external USB device via the front-panel port. You can also use the USB port to enjoy your digital photos, MP3s, high-resolution FLAC music files, and videos.READ LESSProduct highlights:plays standard and 3D Blu-ray discs, SACDs, DVD-Audio discs, DVDs, and CDsInternet-ready for streaming TV shows, movies, and more from Netflix, YouTube, Hulu and VUDU (memberships required for Netflix, HuluPlus and VUDU)streams photos/videos/music from a compatible DLNA-enabled Windows® PCplays high-resolution digital music files via USB storage device or a networked computer (up to 24-bit/192kHz resolution)BD-Live and BonusView support for added bonus features with compatible discs — includes built-in memory for downloadable contentfan-less design for reduced noisequick start mode for fast play accessPure Direct mode for enhanced sound qualityremote controlplays Region A Blu-ray discs and Region 1 DVDsTechnical Specs:selectable video resolution up to 1080p via HDMI outputHDMI version 1.4a for 3D video, Deep Color, x.v.Color, High-Bit-Rate Audio, and HDMI-CEC controlbuilt-in audio decoding for Dolby® Digital, Dolby Digital Plus, Dolby TrueHD, DTS, and DTS-HD™ Master Audiofront-panel USB port for audio and video file playback or additional memorystereo audio outputEthernet port for BD-Live and video streaming functionalityremote control in/out for use with external controllersdetachable power cord 17-1/8"W x 4-1/4"H x 11-5/8"Dweight: 10.8 lbs.