Denon SPK611 8K HDMI Upgrade Kit

The Denon SPK611 8K HDMI Upgrade kit lets you upgrade your Denon AVC-X8500H AV amplifier to the latest 8K HDMI specifications to get the best performance for your home cinema.

The AVC-X8500H delivers the most cutting-edge home theatre technology to-date. To build on its robust capabilities, you can now upgrade to the latest HDMI specification to experience superior picture quality, enhanced gaming options and other convenient features to match the uncompromising audio performance.

The upgrade - requiring hardware modification at an authorized Denon Service Centre – will enable you to enjoy the following benefits of that adhere to the latest HDMI specifications.

The 8K HDMI Upgrade features 8K upscaling, allowing you to upscale 1080P or 4K content to 8K to work best with your 8K TV. Improve your gaming experience with next-gen consoles. Variable Refresh Rate reduces tearing and lag and improves gaming clarity, while Auto Low Latency Mode provides the ideal latency setting allows for smooth, lag-free, and uninterrupted viewing and interactivity.

Quick Frame Transport and Quick Media Switching reduce latency for smoother no-lag gaming, and real-time interactive virtual reality, and allow you to say goodbye to blank screens so you can game more and wait less.

Denon SPK611 8K HDMI Upgrade Kit features

  • Upgrade your Denon AVC-X8500H to the latest 8K specs
  • 8K upscaling from 1080p or 4K
  • ALLM for smooth, lag-free game play
  • Variable Refresh Rate improves clarity for next-gen console gaming
  • Quick Media Switching reduces waiting time for more gameplay
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Your Delivery:

Orders received before 1:00 pm* will be despatched the same day and can be delivered for next working day, (except bank holidays).  For you convenience you can choose multiple shipping options on the checkout page. We will also email with your tracking and dispatch information.

30 Day Returns Policy

HiFix is committed to selling quality products which we hope you will love, we do understand, however, that there maybe a time when you need to exchange or return something you have bought. We really do hope you are pleased with your purchase but should you wish to return anything bought from us, we will be happy to refund or exchange a product within 30 days.

NameSKUQtyLead time
Denon SPK611 8K HDMI Upgrade Kit502000Warehouse stock usually available in 2 to 3 working days.

Warranty information for Denon:


Denon products are designed and manufactured to the highest quality standards. However, if something does go wrong with the product we are here to help. From your date of purchase your product is warranted against faulty materials or workmanship for a period of 24 months.

This guarantee applies to all Denon Products including Blu Ray Players, Book Shelf Speakers, CD Players, Headphones, Hi Fi Amplifiers and Receivers, Home Cinema Amplifiers and Systems as well as award winning Mini Systems, Sound Bars and Turntables. Providing you with peace of mind and the assurance of premium Quality.

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