AVS Special Member
Join Date: May 2008
Location: San Francisco - East Bay area
Mentioned: 1 Post(s)
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The days of needing different calibrations for different sources are (mostly) over. Modern digital video sources don't have the range of variation that used to exist with analog video. It has been a long time since I ran into, say, a Blu-ray player and cable/satellite box that needed separate (different) calibrations. You only need to insure that each source has the right settings and is not altering the video being sent out. Games are not "calibrated" unless they are THX certified (in which case they will match Blu-ray) as there's no color standard for the gaming industry. So using the HDTV standard is the only real alternative because you don't know if the next game is going to be accurate (THX) or some random "standard" used by the game company.
If you are still running an old VCR and laserdisc player... all bets are off. But you'd have to put known-accurate analog video into the VCR (say from a video signal generator with analog video output capability) and own a laserdisc with accurate test patterns.
And in your case, the AVR would have to have separate grayscale calibration controls for each input. I've never seen that from an AVR, however (at least not so far). Otherwise, there's no way to do separate calibrations for separate source components with everything connected as you have them connected now.
"Movies is magic..." Van Dyke Parks
THX -- ISF -- HAA