The PR-SC5507 is designed specifically for the serious home theatre enthusiast seeking a sophisticated pre-pro to partner a high-end power amp. You get the very best in video processing, with HQV Reon-VX and 1080p upscaling of all video sources via HDMI™ 1.3a, plus ISF calibration for fine-tuning of video parameters. Along with the latest high-def audio formats from DTS and Dolby, the PR-SC5507 handles Dolby® Pro Logic® IIz and Audyssey DSX™—two expansive surround formats that make use of extra vertical or wide channels in a 9.2-channel configuration. Alternatively, these extra surround channels can be used for playback of different sources in multiple zones in your home. As with Onkyo’s latest high-end receivers, the PR-SC5507 offers home networking capability that lets you stream internet radio or PC-based audio through your main system. Ultra-low-jitter PLL circuitry, gold-plated terminals, and XLR inputs and pre outs are testament to the unit’s audiophile build quality.