AVS Special Member
Join Date: May 2008
Location: San Francisco - East Bay area
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If the Onkyo AVR can "increase saturation" so can the video display in some other picture mode. It is ABSOLUTELY POSITIVELY PERRENIALLY-FOR-INFINITY impossible for a video display that cannot reach 100% saturation natively to have any external device increase it's saturation. Now... the video display may have modes and options/settings that limit saturation and you MIGHT be able to use some external manipulation to achieve higher saturation, but the video display itself could achieve that higher saturation also if you use the mode and settings that allow the TV to reach "full native saturation". Expecting an external device to somehow magically increase saturation is like expecting a printer that can print 1 page in 10 seconds to somehow print 1 page in 9 or 8 seconds by changing the power cord or paper... it's just not going to happen.
In some cases, you might have to advance the TV's Color control somewhat (in some modes) to get the TV to achieve 100% saturation when measuring color. Actually, you want the TV to be able to achieve 109% saturation so you can see 109% white when data that bright exists in the video content (and it does, though it's fairly inconsequential as to whether your display stops at 100% or can display 109% -- 109% is more technically correct, but is invisible without test patterns to show whether it exists in images or not.
I would not trust the controls in the AVR farther than you can throw them. In fact, I would set the AVR to bypass mode. AVR manufacturers aren't typically very good at implementing video processor features in AVRs so that the processing is actually HELPFUL. Just having a video processor with a great reputation is WORTHLESS. The video processor is only as good as its implementation and it is PLENTY easy to screw that up. In fact, some AVRs still process the video even if you put the AVR in Bypass mode because the manufacturer did such a poor job of implementing the processor. You can't simply pick a picture more that SOUNDS like the right choice and assume it is "good"... you have to measure the choices and weigh the calibration options. I've seen 1 video display that would oversaturate coloirs in dynamic mode and undersaturate colors in every other mode. So I ended up calibrating Dynamic mode --- luckily in that case, all the extra processing could still be disabled, but sometimes Dynamic mode has processing done that you can't stop... that's not a good thing. In this case, Dynamic mode produced the best calibration for that particular make/model even though it was by far the least accurate mode before calibration.
"Movies is magic..." Van Dyke Parks
THX Certified Professional Video Calibration
Widescreen Review -- Home Theater & Sound