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NEW RANGE JVC 2014 - Page 33

post #961 of 3973
Quote:
Originally Posted by AV Science Sales 5 View Post

I am pretty sure that has not happened the last three years. I remember the question coming up the last three years. I went to Cine4home's site and the only thing I found was from January of this year. Found a preview from September of 2012.
I know he did a preview one year (maybe more) and then followed that up with the full review after units shipped. I may be wrong but I think he may have updated his preview (done before the units shipped) with the results from the review that was done after units shipped.
post #962 of 3973
Quote:
Originally Posted by Geof View Post

I know he did a preview one year (maybe more) and then followed that up with the full review after units shipped. It may be wrong but I think he may have updated his preview (done before the units shipped) with the results from the review that was done after units shipped.

I think you are correct. That matches with what I remember and with what I found, going to Cine4home's site.
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post #963 of 3973
Quote:
Originally Posted by R Harkness View Post

Yes I was thinking of that when I asked my question on the AVforum.

There's often quite a significant jump in sound levels on the JVC high bulb mode, so I didn't want to presume the new 2dB decrease remained even for both bulb modes.

Hence, I asked Gary whether the new projectors were quieter in both low and high bulb modes. My RS55 is already quiet enough in low bulb, but if the new ones are quieter in high bulb mode than my RS55 in high bulb mode, that could be significant for me.

At the off site JVC demo rooms, no audio was being used and the projectors were run in high lamp mode. The noise was very low for high lamp. Would not see it as a problem.
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post #964 of 3973
If you are watching a silent movie, you should add a synchronized organ track. Not that I was around then, but my grandfather told me that the theater had an organ player back in the silent movie days who provided appropriate organ music and sounds to match the scenes. So even if you hear the fan, show the silent movie properly with some background organ. The least you could do would be to watch it and select appropriate organ tracks, record them, and then playback with your video to properly provide the correct movie experience for your audience. If its you alone, hum a few bars and fake it. Hope this helps. smile.gif
post #965 of 3973

What is a good price for a DLA-RS49 or  DLA-RS4910 are they different?

post #966 of 3973
Same projector but the 4910 has quality assurance, which I think should be something all of these projectors should have before they are sold
post #967 of 3973
Is it possible to purchase an extended warranty ie additional year(s) from Jvc? I checked their site quickly but didn't see anything about it.
post #968 of 3973
Quote:
Originally Posted by blee0120 View Post

Same projector but the 4910 has quality assurance, which I think should be something all of these projectors should have before they are sold

They all are QCed. Its a question of additional QC or tighter tolerances to pass. And this involves higher costs. More labor, tests, and rejections.
post #969 of 3973
Quote:
Originally Posted by mark haflich View Post

They all are QCed. Its a question of additional QC or tighter tolerances to pass. And this involves higher costs. More labor, tests, and rejections.

Still, they should leave this way. It adds very little to the price, that's why I think they all should
Edited by blee0120 - 10/17/13 at 10:55am
post #970 of 3973
You can vote with your dollars.
post #971 of 3973
Quote:
Originally Posted by blee0120 View Post

Still, they should leave this way. It adds very little to the price, that's why I think they all should

As Mark said, they all are. The installer versions, just have an additional level of QC to go through.
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post #972 of 3973
Quote:
Originally Posted by wse View Post

What is a good price for a DLA-RS49 or  DLA-RS4910 are they different?

Call for pricing. smile.gif
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post #973 of 3973
Quote:
Is it possible to purchase an extended warranty ie additional year(s) from Jvc? I checked their site quickly but didn't see anything about it.

Use an AMEX card. Get an extra year warranty for free. smile.gif
post #974 of 3973
Quote:
Originally Posted by AV Science Sales 5 View Post

As Mark said, they all are. The installer versions, just have an additional level of QC to go through.

Yeah, Mark was correct. Just read about it
post #975 of 3973
Quote:
Originally Posted by Craig Peer View Post

Use an AMEX card. Get an extra year warranty for free. smile.gif

Discover does this now, too. Plus they are currently doing 5% cashback on online orders although I think there is a cap.
post #976 of 3973
I believe the 4910 also has a 3 year warranty vs. 2 years for the 49. I'm sure Mike can confirm.

Cheers!

Chuck
post #977 of 3973
Quote:
I believe the 4910 also has a 3 year warranty vs. 2 years for the 49.

Correct - http://pro.jvc.com/prof/attributes/features.jsp?model_id=MDL102256
post #978 of 3973
Quote:
Originally Posted by mark haflich View Post

...but a change of 2db for most people would not be detectable by their ears/brain detector.

Change your volume control by 2 dB and tell me the difference isn't easily audible.

Sometimes even 1 dB steps seem to coarse to me.
post #979 of 3973
Quote:
Originally Posted by AV Science Sales 5 View Post

As Mark said, they all are. The installer versions, just have an additional level of QC to go through.

Do you know what those steps and the pass/fail criteria are?
post #980 of 3973
Quote:
Originally Posted by noah katz View Post

Change your volume control by 2 dB and tell me the difference isn't easily audible.

Sometimes even 1 dB steps seem to coarse to me.

No doubt. Not to mention what is loud is subjective and dependent on other variables as well. I would have to think if Rich thinks high lamp mode on his 55 is too loud now, chances are the new models wont change his mind from what we know, but he wont know for sure until he tried it of course. Many say ghosting on the current JVCs is to the point that it is a non issue, but I saw enough on the X75 demoed at Cedia just with the 5 minutes I spent watching the underwater 3d they had going to know I would still not be happy with a JVC for 3d. All these A/V issues are very subjective and dependent on so many things as far as how big or little of a deal they are.
post #981 of 3973
Science vs perceived reality. Noah enjoys arguing with almost everything I say. Just like two engineers in a whose Johnson is longer and the measuring metric being Angstrom units.

First, Noah does one tick of the volume control truly result in a 1db increase at the listening point. Did you measure are are you err postulation and one click to 1 db increase.

And also the testing procedure is otherwise flawed. You clicked so you know its louder. Of course its louder but I would bet you a container of slide rule grease the increase is at least 3db.


The scientific literature on audiology is resplendent with experiments and test showing a 3db increase is needed to detect an increase in volume.

Engineering is the implementation of science and engineering can indeed prove the science is wrong. But I doubt it in this case

but get out your db meter, click that volume control and measure close to the speaker to eliminate room volume effects and measure say ar 1K to eliminate room resonance effects and let me know. I'll be ready for a second round. Let me buy you the first. :)i
post #982 of 3973
Of course not everyone has the same sensitivity to fan noise. But I spend my entire day balancing sound levels, raising and lowering as little as 1 dB or 2 dB and so I'm quite aware of the difference small sound level changes make.

Also, many of us have worked quite hard to lower the noise floor of our HT rooms to hear all the audio details, so just introducing more fan whir can be quite counterproductive. (And since I work on movie/TV sound, I'm listening to loud "home theater" all day long, hence after a long day of this I don't like to then go listening to movies at reference levels. I often play movies at a "relaxed" sound level, and also without waking anyone else at night, so a quiet room is all the better for me).
post #983 of 3973
Rich. You might want to read Norm Varney's article on acoustically treating HT's and the magnitude of reductions needed.

How do you know you are lowering or raising the sound 1db?
post #984 of 3973
You can definitely hear a 1db difference, atleast I can... Don't take my word for it though, I'm sure some people are less/more sensitive than others so listen and decide for yourself.

http://www.animations.physics.unsw.edu.au/jw/dB.htm#soundfiles
post #985 of 3973
Mark,

What what I've read humans have been able to detect differences from .5 to 3dB, depending on the sound.

I work on Pro Tools which allows me to adjust any sound to a 10th of a decibel.

I just took a car vent tone from my library, copied a few seconds of that tone, made another copy at 2dB lower volume, then looped them together alternating. It was easy to hear the volume change back and forth by 2 dB with my eyes closed.
post #986 of 3973
Quote:
Originally Posted by mark haflich View Post

Science vs perceived reality. Noah enjoys arguing with almost everything I say.

Mark,

Actually I don't enjoy it, it's just work and a time-eater.

I do admit to having an extreme sensitivity to such things and an annoying propensity to correct them.[/quote]
Quote:
Originally Posted by mark haflich View Post

First, Noah does one tick of the volume control truly result in a 1db increase at the listening point. Did you measure are are you err postulation and one click to 1 db increase.

I'm going by the volume display. These things are designed by electrical engineers and it's not a hard thing to get right.

I haven't measured with SPL meter or voltmeter, so I can't back it up, but others have corroborated what I've said.

And listening location is irrelevant; dB are relative.
Quote:
Originally Posted by mark haflich View Post

The scientific literature on audiology is resplendent with experiments and test showing a 3db increase is needed to detect an increase in volume.

Not that I've ever seen; the way I remember it is that 3 dB is the least easily discernible volume level difference, which is not the same as minimum perceptible.
post #987 of 3973
Quote:
Originally Posted by AV Science Sales 5 View Post

I think you are correct. That matches with what I remember and with what I found, going to Cine4home's site.

That's what I should have said sorry. They never officially posted it until we got our machines but we at least had a good sense of what we might expect. Last year however you are right on the money (not a peep until well after release which surprised me). So for this year I guess it's anybody's guess. wink.gif
Edited by krichter1 - 10/17/13 at 6:19pm
post #988 of 3973
OK. Good rebuttal except for the bit about the electrical engineer correlating an unknown amp and speaker for a 1db increase per one number increase read out on the preamp.

But I'll pony up the slide rule grease. Is white OK?
post #989 of 3973
It really depends on how far away you are from something. The way sound works is there is a dampening effect of 6db every time you move each meter further away from a source..If you can distance yourself far enough from a projector even a moderately loud projector isn't going to be that bothersome.
Edited by Seegs108 - 10/17/13 at 6:29pm
post #990 of 3973
I don't think they call that grease Mark. tongue.gif (BoSox are up 3-0!)
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