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Do a compare using the best buy compare. All that I found is that the 143 has a longer bulb life and is slightly larger. The throw, ration and max screen size are almost identical.
Sorry, there was a problem. Please try again later.It's a newer model. Are you asking what are the key differences that separate them?
Sorry, there was a problem. Please try again later.The physical dimensions/weight of the 143X are slightly different. More importantly the lamp life is much greater in Dynamic/Eco mode and quite a bit lower in Bright mode than the 142X. Fan noise appears to be up a decibel or two, not significant. Hope this helps.
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