PRICE ,399 AT A GLANCE Plus Unimpeachable audio and basic video quality Generally good ergonomic design Eminently useful pop-up Quick Menu Minus No apt X for Bluetooth Local-streaming audio doesn’t display file type/sampling info Fairly downscaled remote THE VERDICT Onkyo’s latest A/V preamp/processor adds the Dolby Atmos/DTS: X and 4K/HDR capabilities needed to bring the brand’s pre/pro current, while maintaining very solid value in the field.
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As with so many this-year’s-model A/V designs, the PR-RZ5100’s evolutions are mostly about two things: Dolby Atmos/DTS: X “objectbased” surround processing and 4K/HDR video.
For the former, Onkyo deploys dual Analog Devices SHARC processors wielding an almost unbelievable 6 giga-operations per second (plus discrete 32-bit DACs all around).
A warning from Onkyo says that they've discovered a possible failure when updating via Ethernet and, therefore, decide on sticking to the USB mode instead. Download the firmware at the link below and copy the contents of the archive to a formatted USB drive.
Set the HDMI Control (RIHD) and Zone 2 to “Off” and stop playback from Internet radio, i Pod, i Phone, USB or servers.
Go to “Hardware setup” and then select “Firmware update.” Choose “Via USB” and then confirm the installation.