Originally Posted by jin kim
What is "PC Control" on the 1120?
Pioneer's Amazon write up says,On-Screen GUI, PC Control, and RS-232 Support Provide Even More Control Options
"There are more ways to control your Pioneer VSX-1120-K than just your iPhone. There's a full-color on-screen GUI for use with the included preset remote, and PC control capability so you can use your Mac or PC to adjust settings when your receiver is connected to your home network via Ethernet. For full-on home theater automation, the VSX-1120-K supports RS-232 systems such as Control4® and Crestron®. So you can control your Pioneer home theater anywhere, from the whole house to the palm of your hand."
Hopefully the on-screen GUI (and volume) is displayed over any HDMI source (I remember getting the GUI to appear over Component Video was a big deal). My current Sony STR-DG920 receiver can't display a HDMI source and GUI at the same time but has no problem showing the GUI over Component or Composite Video (including volume) that's output to HDMI (just not HDMI sources). The Pioneer does have HDMI-to-HDMI upconversion so there is hope (something else my current receiver can't do).
I've read somewhere too that you can get "reports/stats" about the receiver along with what's mentioned above. What these "reports/stats" will have in them and if they are real remains to be seen.
The RS-232C interface is the standard custom installers use to create special control schemes for integrated devices. The only thing special here is having it in a receiver at this price point.