AVS Forum Addicted Member
Join Date: Dec 2006
Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 503 Post(s)
JVC has enough brightness for a large screen if you get some gain (depending on how large we are talking). Actually the JVC is brighter than most DLP's in best mode, unless we are talking DLP's with much worse black levels.
Why do people not often do this?
Well there are a few that are doing it mainly for 3D, but I'm not convinced. My reasoning is because you can just get a brighter model projector or buy two DIFFERENT non-stacked projectors instead of stacking two of the same. With two different projectors you get different Pro's/Con's making for a more solid overall experience. For instance, the Epson 5010 and Benq w7000 both have a 1500 lumens mode and both do better in 3D than a JVC. Even if you do not care about 3D, there are 2D advantages to owning more than one model. As good as the JVC is in many movies in 2D on Blurays, there are still 2D weaknesses to its image depending on the content. I can find some movies I still would rather watch on a DLP (not that many though), but for poorer sources, TV, or some stuff, certain DLP's are just going to process things better than the JVC anyways. The JVC needs a well-filmed Bluray that was mastered correctly to look its best, but when you feed it that, it does look spectacular.
So owning two of the same model seems like a huge waste of money to get stuck with the same Pro's/Con's. So the gain in brightness you get from double stacking you can just buy a secondary projector that is brighter for when you need that extra brightness. With stacking, you have color matching accuracy issues, convergence matching, and brightness variations between the two units which will further degrade the image over time. You also are burning two lamps instead of one at a time. You mise well just put the "stacking" budgets to buying many extra lamps and use new lamps more often providing extra brightness.