Keep a much-loved Marantz AV8805 at the centre of a modern home cinema. This HDMI 2.1 upgrade gives the original AV8805 a practical route to newer displays, game consoles and high-bandwidth video sources without replacing the processor that already anchors the system.
It is a considered upgrade for dedicated cinema rooms and media spaces where the AV8805's audio performance and flexible processing are still exactly what the installation needs. The refreshed video path allows the system to accommodate today's premium picture formats while preserving the familiar Marantz experience.
For owners planning a next-generation display or console upgrade, it is a neat way to extend the life of an existing high-performance processor and keep the installation ready for years of films, gaming and music listening.
| ITEM | DESCRIPTION |
| Main Features | |
| Modern video pathway | Refreshes the AV8805 for higher-bandwidth sources and current-generation display technology. |
| Home cinema continuity | Lets you retain the AV8805's established processing and control platform while updating its HDMI capability. |
| Gaming-ready connection | Supports the video features modern console setups need for fluid, responsive play. |
| Purposeful upgrade path | Ideal when a premium existing installation needs a video refresh rather than a complete processor replacement. |
| DETAIL | VALUE |
| Compatibility | |
| Compatible processor | Marantz AV8805. |
| Upgrade kit reference | SPK614 HDMI 2.1 / 8K upgrade kit. |
| HDMI Upgrade Specifications | |
| 8K / high-frame-rate path | HDMI IN 7 plus HDMI OUT MONITOR 1 and MONITOR 2 support 8K at 60/50 Hz and 4K at 120/100 Hz pass-through. |
| HDCP | HDCP 2.3. |
| HDR and gaming features | HDR10+, Dynamic HDR, Variable Refresh Rate, Quick Media Switching and Quick Frame Transport. |
| Default 8K source name | HDMI IN 7 is assigned as AUX2 (8K) by default. |
| Installation Notes | |
| Installation type | Internal HDMI hardware upgrade; professional Marantz service or dealer installation is recommended. |
| Zone 2 note | HDMI IN 7 cannot be selected for Zone 2. |
| Best Suited For | |
| Existing AV8805 home cinemas and media rooms that need an HDMI 2.1 video upgrade for 8K displays, modern consoles and high-bandwidth sources. | |
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