AVS Forum Special Member
Join Date: Aug 2001
Location: BOSTON --- MA ---
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timatraw >>> I purchased a store demo Runco Q-750D and over the past 15 months i have used it for over 4.000 hours without any problems or any noticeable change in onscreen luminance level, which is a lot to say concerning long term reliability of projectors in light of all those posts right here at AVS of so many owners complaining of light engine failure within 400~800 hours, the "pink stripe" LCOS curse, the "green-yellow" Sony SXRD optical block failure, owners demanding class action suites against manufacturers, damage from light bulb explosions, etc, etc.
From my experience, just by using LEDs instead of UHP/zenon bulbs you would be saving yourself a whole bunch of concerns and incoming headaches and the price to pay for that is to carefully match the size and gain of your screen of choice to the more limited luminance output of those Luminus Devices Phlatlight LEDs.
Home Theater Magazine measured a clone of the Runco Q-750i (Digital Projection M-Vision Cine LED) at 17.2 ft-L and minimum black level of 0.002 ft-L on a Stewart Studiotek 100 unit gain screen 100" wide (112" diagonal), which is excellent light output as recommended by SMPTE and keep in mind that contrary to what so many people think, the complete LED R/G/B chipset from Luminus Devices used in these projectors, Phlatlight PT120, can be purchased for less than $250 and from pictures posted online very easily replaceable as they are screwed on a metal board.
Considering your projector comes with warranty the other questions i would have asked the dealer would be how much of a discount from msrp, the physical condition of the unit and, out of curiosity, estimated hours of use.
Sony XBR-940E, Integra DHC-80.2, Oppo 103, Sound Lab A-1 electrostatic speakers,SVS PC12-NSD subs, InnerSound Electrostatic Amp,, Hafler 220 amp, Harman Kardon PA5800 amp, Pioneer LD-W1, Darbee Darblet, DVDO iScan Mini, Nvidia Shield, Yamaha CR-7, Koss ESP/950, Stax SR-40, Audeze Isine 10, etc, etc.