• There are no production JVC Z1/RS4500 projectors available yet, and what you have seen so-far at all venues are pre-production units hand built for demonstration. • None of them conform to the full advertised release specification. • JVC will not be shipping production units until they are satisfied that they perform fully to the advertised specifications. • It is difficult to predict the timing of engineering to a release-state product.• NO production units have been released for review or testing, so the test results published by the German magazine [AudioVision] can only be based on pre-production hardware/firmware like that you have seen, and will therefore be inaccurate. There are also other considerations like the source equipment and media that will have had an impact on their tests.
We have the first production units being delivered at the end of January 2017. As the unit here [at CES] is pre-production, my suggestion is that you come along to our showroom to see the finished article, rather than draw any conclusion from what you have seen so-far
" Good things come to those who wait ". I hate waiting ! Then again, we are waiting for a projector that you could watch for 10 years without it losing significant brightness. Ironic, eh? Thanks Nigel ! And sorry I missed you at CES.
Indeed. We all know about not paying attention to the performance of pre-production units leading up to a product release but the thing that really got the cat amongst the pigeons here was a 'professional' AV magazine publishing what was reportedly the first official review with measurements a production unit seemingly with JVC's authorization and approval... How is that even possible? Anyway, fortunately the wait is nearly over! Thank God! I'm exhausted! I think my situation is being exacerbated by the fact that I am definitely starting to suffer withdrawal symptoms with respect to my addiction to high quality AV... And getting around CES is driving me nuts... So I figure whilst I am here I should definitely go check out a DOLBY CINEMA and I just looked and there is in fact one here in Las Vegas with all the bells and whistles… They are showing the new Underworld movie… So here are my options: 2 hours spent in queues at CES or 2 hours spent staring at Kate Beckinsale’s rear end tightly jammed into black latex in Dolby Vision HDR with decent WCG color and up to 100nits/30fL lumens and 1,000,000:1 contrast … Mmmm, let me see, which should I choose? .
I sold my RS600 a lot quicker than I expected. While I have other projectors here, none of them are 4K. My Oppo arrives Tuesday, but it will be a few more weeks before I know which projector I go with. Right now the leading candidates are RS4500 and RS620. After having an RS600 in my dedicated room, the RS45 (which really throws a good image) is a disappointment.
Unless I am mistaken JVC's pre-existing track record to date with respect to all of its projectors has been such that the published technical performance figures very closely mirror the reality and post-calibration at that... which can't be said of all brands... And so, it should be not unrealistic to expect close to 3,000 Lumens calibrated and not: '3,000-Lumens-achieved-by-incorrectly-boosting-the-grey-scale-blue-or-green-components-to-achieve-falsely-higher-brightness-and-hence-not-really-3,000-lumens'. Consequently, given JVC have stated they will be delivering the published specs (where I have noted that they have stopped using the word 'forecast' to us now where that included contrast figures) we are therefore expecting 3,000 lumens with pretty accurately and correctly balanced greyscale out of the box and not with the blue component for instance jacked up by 30-40% to artificially boost the brightness figure... This would not be in keeping with JVC's track record to date and we therefore do not think it would be appropriate for JVC to suddenly start doing that kind of thing now, given that they have not done so previously. So when I said we are looking forward to confirmation with respect to which units JVC finally acknowledge are indeed production units, this will be what we are expecting and hoping for and with good reason. Where for example, 2,600 lumens post calibration would not qualify, nor if the greyscale is significantly out of whack out of the box. Where all we want is what has been promised. Nothing more. Nothing less. I do not consider this to be unreasonable. Wherein, I cannot disagree with what Cine4Home has said regarding the fact that it would appear that all that has in fact been promised via the published data (as opposed to forecast to us previously) is 3,000 lumens... So we want and are expecting 3,000 lumens please... Where it is probably worth mentioning that for the same reasons this is what all of our customers are expecting and we don't want to let them down for obvious reasons.And where I think it is also worth mentioning that I am of the view that with the projector delivering the promised 3,000 lumens, given this would obviously be with the iris wide open, this would allow at least some headroom for the iris to be closed down a bit and thereby boost the contrast and enhance the black floor and thereby help to offset what we are all expecting will unfortunately be a lower than forecast ON/OFF contrast performance... Where if the brightness is lower than promised (and forecast) then this double whammy would negate the ability to do this. That said, because I always like to remain impartial, I would also like to point out that it would not be fair or realistic to expect everything to be perfect at launch with the initial launch firmware... where it is common and to be expected for there to be at least some technical bugs, issues, and even malfunctions, but which can be subsequently resolved via firmware updates. That said, as some others have already pointed out there are limits with respect to what can be achieved via firmware updates. But fortunately it's not long to wait now until we will be obtaining the necessary confirmation as to what's what... The wait is going to be painful though! .
My review unit will ship this week and I will be knee deep in measurements and such next weekend.
Sounds great! I can't wait to hear what you think. Right now you have an X750, right? I'd love to hear your thoughts on the differences in picture quality, HDR performance and anything in general that sticks out between these models.
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