Bought six months ago, opened box, never used.
The extremely versatile AV7703 perfectly and expertly handles any kind of high-resolution multichannel audio format. Superb surround sound audio quality from the latest surround formats including Dolby Atmos, DTS:X and Auro-3D (optional paid upgrade). The AV7703 even enhances audio quality by delicately handling all signals via the Marantz's own current feedback HDAMs preamp, before passing them to the high-quality 11.2 channel XLR or 11.2 RCA outputs and separate power amp.
Full wireless connectivity is provided by both Wi-Fi and Bluetooth. Apple's Airplay is supported for simple wireless music streaming. High resolution audio formats and playback are fully supported for incredible fidelity. There is even a Phono MM input - ideal for those precious vinyls.
With built-in HEOS technology, the AV7703 becomes a part of the HEOS wireless multi-room music network that enables you to enjoy your favorite music anywhere and everywhere around your home. You can explore, browse, and play music from your own music library, from online streaming music services, and from thousands of internet radio stations using the free HEOS app.
Prepared for the future, the AV7703 features an advanced video section that's fully compatible with the latest HDMI 2.0a and HDCP 2.2 specifications on all 8 HDMI inputs. With 4K Ultra HD 60Hz video, 4:4:4 Pure Color sub-sampling, High Dynamic Range (HDR), 21:9 video, 3D, and BT.2020 pass-through support on every input, the AV7703 is ready for 4K Ultra HD Blu-ray disc players, set-top boxes and other 4K Ultra HD sources. In addition, the AV7703 can upscale standard and high definition analog and digital video content to 4K Ultra HD, breathing new life into your favorite legacy sources.