New JVC X30 purchased - need EVERYTHING else!! Help!!! - AVS Forum
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post #1 of 11 Old 10-16-2012, 10:13 PM - Thread Starter
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And yes I have seen the "Official JVC X30..." thread, and it is at 132 pages right now and I was getting kind of lost, so I thought I would just ask my questions here.

I have never owned a projector, so after settling on a Mits HC4000 over the last two years and never getting around to pulling the trigger for various reasons, (summer, wakeboarding, busy with work, backyard projects – Ok so my wife wanted her kitchen finished…) I finally today pulled the trigger at our local Big Box store and on the 20th, I will pick up my new JVC DLAX30.

The X30 will be used for;
  1. Movies – 2D as 3D just doesn’t excite me right now
  2. Sports
  3. Inputs to an AV receiver – an Onkyo or a Marantz
  4. Dish Network STB ~20% of the time
  5. PS3 (or some other standalone BD player) 75% of the time
  6. An HTPC – yet to be built, but have been looking at cases, dual video cards and motherboard/processors
  7. AV receiver output through an appx. 25’ to 30’ HDMI cable to the X30
  8. In a 20’ wide x 22’ deep HT room
  9. That has windows (soon to be with thick dark curtains)
  10. Used mostly at night


I still need to:
Pick and get a screen, I want a 16:9 120” ceiling mount (not recessed) motorized screen
  • What gain?
  • What manufacture?
  • Screen color/type (white,grey etc)?
  • By a ceiling mount
  • Suggestions on what and where to buy?


With a 120” 16:9 screen,
  • What height off the floor should I shoot for? Dimension “D” in my drawing below
  • I have a coffered ceiling that drops down about a foot, the projector will be mounted to the upper ceiling and the screen will be mounted the lower ceiling height, what distance from;
  • Dimension “A1” upper ceiling to the center of the lens
  • Dimension “A” center of lens to top of screen
  • Dimension “B” upper ceiling to the top of the screen
  • Dimension “C” lower ceiling to the top of the screen





HT Section - JVC X3.pdf 20k .pdf file
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File Type: pdf HT Section - JVC X3.pdf (20.5 KB, 17 views)
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post #2 of 11 Old 10-17-2012, 01:36 AM
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You will likely get more help if you have a mod move this thread to the dedicated theater design and construction sub-forum. As for a screen, you need to specify a budget and where your speakers will be placed (behind or around the screen). Screens can range as much as $50 (DIY) to $5000+. The X30 has tons of lens shift, so as long as you are close-ish to the top of the screen you'll have no issue getting the image to fit onto the whole screen.

If you want a high-gain screen, however, then your angle calculations become much more extensive and you'll need to look at the specs of the screen you choose.

A budget would help, though.

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post #3 of 11 Old 10-17-2012, 05:16 AM - Thread Starter
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My speakers will be placed at the sides and below the screen

Budget: I would like to keep it under $2K

Thanks, Eric
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post #4 of 11 Old 10-17-2012, 06:40 AM
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Eric, I would be happy to help you. Since most of this is not projector related I have sent you a PM.

If your picture is drawn to scale, the riser is not high enough. Here is a riser height calculator: http://www.avsforum.com/t/505237/riser-height-calculator

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post #5 of 11 Old 10-17-2012, 06:59 PM - Thread Starter
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Quote:
Originally Posted by Frosteh View Post

You will likely get more help if you have a mod move this thread to the dedicated theater design and construction sub-forum....


So is this post in the incorrect forum? If so, Mr. Moderator could you move this to the correct forum?

I think my main questions are pretty simple and relate what height a 120” screen should be with a 12’ sitting distance (my “D” dimension)

This then will affect the projector mount length that will control my drawing dimensions “A1” & “A2”

And I figured that out of 132 pages of “Official JVC...” thread the screen gain would be pretty well figured out.

Eric.
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post #6 of 11 Old 10-19-2012, 11:24 AM - Thread Starter
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So no one can help me out;
  1. On the vertical distance from the top of the screen to the center of the lens?
  2. What screen material - White, Grey, Pink???? for a dark room with dark walls?
  3. What gain for this projector/room combo?

Eric.
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post #7 of 11 Old 10-20-2012, 03:10 AM
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http://www.eliteprojectorcalculator.com

This will help with screen placement. Start reading in the dedicated theater design and construction sub-forum, and the screen sub-forum; there are many of choices regarding projector placement and screen type. It is as not as simple as you suggest.

Also, I would submit that if you want to get the most out of your JVC, it may be worth the investment in your time to read the full X30 thread.

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post #8 of 11 Old 10-20-2012, 07:27 AM
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yeah, i think so, would submit that if you want to get the most out of your JVC, it may be worth the investment in your time to read the full X30 thread. 45.jpg
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post #9 of 11 Old 10-21-2012, 07:00 AM
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Quote:
Originally Posted by EricU View Post

So no one can help me out;
  1. On the vertical distance from the top of the screen to the center of the lens?
  2. What screen material - White, Grey, Pink???? for a dark room with dark walls?
  3. What gain for this projector/room combo?
Eric.

I offered to help you out 4 days ago. smile.gif

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Stewart, Seymour, SE, SI, Falcon, DNP & more.
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post #10 of 11 Old 10-21-2012, 12:35 PM - Thread Starter
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Quote:
Originally Posted by AV Science Sales 5 View Post

I offered to help you out 4 days ago. smile.gif

And I replied with an email on the 18th

So far,
  • I have not ordered a screen
  • Have posted the same basic question in a few different sections of AVS and now don’t know which one I should be posting in.
  • Am trying to find out the answers to what I thought could be done with a few suggestions or links to specific references – (paraphrasing) not “… read the encyclopedia you lazy…”
  • Have been muddling through over 130 pages – sorry that was incorrect, that thread is now over 300 pages and 9,000 posts long!!
  • I have a link to ELITEPROJECTOR CALCULATOR (v.022 BETA) that does not list the X30 and I don’t know if the RS40 is the same thing or not


I really thought that my questions were somewhat simple and direct and that my illustration would be clear.

I am just looking for some help to possibly avoid a time or money mistake, I wasn’t looking to fine tune the snot out the X30 (yet) or to find every little possibly thing wrong with it, just some guidance to a couple of questions that I thought were pretty specific.


Eric
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post #11 of 11 Old 12-04-2012, 08:19 PM - Thread Starter
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Just last weekend I got my JVC X-30 fired up on the Vutec 135" 2.35 screen showing a BD through a PS3 running through a Marantz SR7007 and some Martin Logan Motion 40s. I have wanted an O/H projector for a long time and now all I can say is WOW!!!!!!

I love it!!! and nothing is calibrated - yet!

Thanks to Mike Garret of AVS for the screen.

Eric.
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