HAVING A 5800 DENON A/V RECEIVER, WHATS THE USE FOR THE BACK RS232-C COMPUTER PORT? I UNDERSTAND IS FOR FUTURE UPGRADES BUT THEN, WHY IS DENON CHARGING $800 DOLLARS FOR UPGRADE TO 5803?:frowning:
I think the upgrade to the 5803 involves hardware modifications, and you have to send the thing in to Denon. Presumably the serial port is for software upgrades only.
By software upgrade I mean a new program for the internal computer. I have no idea if such are available... I'm only going by what you said about the port being used for upgrades.