For whatever it's worth, I have owned both and taken fairly careful pictures of their performance. I also returned both eventually and have no horse in this race except that I found the w1070 noticeably better in every regard except that the hd131xe ran quieter and I never tested 3D enough to come to any real conclusions besides both projectors having less smooth 3D than my LG DLP.
The color accuracy difference is subtle though occasionally noticeable when the 131 is set well, however once brilliantcolor is engaged that difference becomes easily seen particularly in brighter colored or animated movies/games.
With brilliantcolor at its lowest, the visual artifacting and noise of the 131 is pretty clean, but at any higher settings the pixelized halos and grain make everything look like a bad SD cable broadcast.
The 131's contrast at good settings is noticeably lower than the w1070's though still much better than any LCD projector near this price, at poor settings (brilliantcolor higher) the black and white contrast can slightly beat the w1070 though the still poor color contrast makes the slight victory look more like a tie or slight loss with any colored content..which is most of it.
The brightness difference with more accurate settings shows the w1070 to look almost twice as bright. With higher brilliantcolor settings the 131 can match or slightly beat the w1070's brightness in black and white content, but colors will still be very noticeably dimmer.
On top of all this, the 131 only has a single user setting and any settings tweaking automatically saves over your old one (erases it) while the w1070 has at least two separate ones so you can have separately optimized settings AND a third for 3D. This is a common complaint for the hd25e/131xe and I have no idea why it has never been fixed.
In my opinion, if you don't really watch anything high color or animated and aren't too picky about accuracy for live-action content, the color accuracy of the hd131xe cuts it just fine with brilliantcolor at its lowest(most accurate setting). IF you are picky OR watch highcolor or animated content, the inaccuracy might bother you when you start to notice things look weird or different.
In a room with lights out, the significantly higher contrast of the w1070 does look nicer, but it isn't the huge difference of going from a cheap LCD to a solid DLP or from a decent DLP to a $2500 LCoS. I'd definitely lean toward the w1070 for a dark room if my budget didn't allow $2000+ though.
The brightness difference doesn't mean as much as the contrast difference in a dark room, and no projector looks all that flattering in a lot of light, BUT it will make 3D a lot brighter and more vibrant as well as make a difference for anyone using a very large screen.
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Last edited by Ftoast; 07-31-2014 at 10:48 PM.