As of today (8th Feb) the final upgrade details are now on the Denon UK site HERE Select News, Consumer Product News and then Denon AVC-A1SE Upgrade. However they do go on to say "We are in the final stages of detailing the logistics, costs and timing of the upgrade and we will publish this information here as soon as it is available." It has also been announced that the upgrade in the US will not start until April as there are Hammerhead SHARC shortages. I assume that this will equally affect the UK too. Regards Jim PS Here's the item from Denon US "FOLKS I HAVE SOME NEW TO PASS ALONG REGARDING THE UPGRADE KIT FOR AVR-5800, DUE TO VERY TIGHT AVAILABILITY OF HAMMERHEAD SHARC DSPs - The release of the Upgrade Board has be moved to April. I apologize for this delay. Those who pre-registered will still be notified when the kits are available in the order they registered. Again, I apologize for any inconvenience this may cause. Regards, __________________ Jeff Talmadge Product Manager DENON Electronics (USA), Inc."