I have the 4520. Great machine. I'm looking to setup a more closed cabinet system, and don't want any loose wires. ( ir transmitters ) I see that on the rear we have the remote control jacks and the rs-232c connector. Which I can only guess how to use. That's the problem. How to use them. And, with what type of equipment.
Do all ir transmitter receivers use the infrared type end or do any connect hard wired on both ends. Hence the in and out jacks. Not to mention do any of these things really works. I see Logitech has a hub of sort, but with only 2 connections and with infrared ends.
I know this is all new to me. So I may be way out there on this. But it seems like they should connect via mini plug cables without the infrared ends. Yes????