Denon/Marantz SPK618 HDMI Adapter

Brand new, sealed spk618 hdmi 2.1 adapter for Denon and Marantz AV Receivers to fix an issue where some sources wouldn't register 8k @ 60hz or 4k @ 120hz correctly.

The SPK618 HDMI adapter is designed to remedy the compatibility issue between SPECIFIC Denon and Marantz A/V receivers that support 4K/120 and 8K/60Hz video resolutions (models listed below) and gaming consoles that support 4K/120Hz and 8K/60Hz video resolution output.

Some new 8K source devices that support 4K/120Hz and 8K video resolution output did not work fully with Denon and Marantz 8K AVRs prior to the development of the SPK618 solution. When users attempted to output 4K/120 or 8K via these specific 8K sources, the 4K/120 or 8K video could not be passed through the AVR. This issue occurred even with the AVR’s menu/GUI option “8K Enhanced” enabled.