Axiom Home Page Forums General Discussion Home Theater HT in-progress

It is a pretty coarse weave. I’d say 6’ closest. I can get pics next time Im on site.

Overall really nice screen. Gain borderline too much for laser projector. Verging on hot spotting/blowout on highlights.

From seated distance after calibrated setup non issue.

6’ is pretty good for an AT screen.

On taking a picture …To be useful the picture would have to be at a known scale and have enough resolution.
A bit more work than just snapping a picture and may take more time then you want to spend or I can ask for.

But here’s what I think it would take …

.My screen size is a 150”. So you would have to zoom out the projector to get a 150” diagonal (131” width) .
Then take a picture with a ruler in it 17” wide (think that’s the width of the largest sheet of photo paper I have .. have to check when I get back home).

4K UHD is 3840 pixels in width. At 131” that 29.3 pixel/inch.
A 12 megapixel camera (4247x2826) would get you about 250 pix/inch at 17”
Which is about 8.5 pixels per projected pixel … hopefully enough to also resolve the weave.
so a 12 megapixel camera would probably be the minimum needed.

I can then print it out to scale, tape it to the wall, and get an idea of what it would look like.

Done

That will be great Trevor.

BTW: Was able to look up the paper size … it’s 13 x 19”
So, a 17 to 19” pict width will work.
Also, there is no rush as I will not be home for at least another week and even then there’s a lot to do before I need to order the screen.

Thanks

Between vacation family stuff and now tax time again nothing has been done on the HT.
Hope to start up again next month at least finish priming the walls, finishing up the speaker terminals,
At which point ... I'm setting up the sound system.

Of course the screen I was looking at jump $400 the other day ... have to see if it comes down again.
Can't complain much I did manage to waste almost a year since I was last considering it. I keep telling myself
the big advantage of waiting is there is more options ... that has certainly come to pass on the projection front ...

Just announced the Epson Pro Cinema LS12000 4K Laser Projector
It's a bit more pricey than I was going for $4,999 ... but it if it meets it's claims it's untouchable at this price point!
I really can't wait for the reviews.

Check out the feature list:
A full 3840x2160 resolution (4x pixel shift), laser light source, 3 LCD imaging @ 2700 lums,
14-point white balance, auto iris, dynamic contrast ratio up to 2,500,000:1. HDR10, HDR10+, and HLG high dynamic range,
with power focus, zoom, lens shift, and cover, fast 36-bit processor, 2 48-Gbps HDMI 2.1 ports supporting 4K/120hz, input lag <20ms (serious gaming), eARC ... yada, yada yada ...
On bit depth they claim 10bit HDR, 100% RGB (kind of like to see wider color space like Rec.2020), YCbCr: 4:2:2 @120hz and 4:4:4 at 60hz ...

It sounds like they threw everything they had at it not to mention the 3 year warrantee and a projector mount ...

https://www.amazon.ca/gp/product/B07RBCG5Y5/ref=ppx_yo_dt_b_asin_title_o08_s00?ie=UTF8&th=1

Going to install this in a couple weeks. More traditional weave. Would suit your build A-ok.

I received a pair of M5ow a few days ago (side surrounds for the HT). To test them out I hooked them up to the family room system on a couple of small tables, up upside-down (so not to block the ports) and about 1-1/2 feet from the wall. While I was at it my wife and friend came in and wanted to watch "Encanto" (a new Disney movie). God, the trouble they gave me about how much time it was taking (as the wires kept falling out of the T connectors ... being rushed didn't help!)

Well even setup like that I was surprised with the sound ... Didn't do any critical listening, just the movie ... but wow ... don't remember the bookshelf M5's being that good.

Tomorrow I'll have to listen to them without the EP500 going. Won't have a lot of time in the next two weeks but eventually I need to test a few things: 1) how much difference there is inverted v.s. right side up at different heights and 2) if hanging them on a FMB is a big compromise v.s. directly on the wall. Unfortunately, they didn't come with a insert to hang them on a FMB (as I expected them to) ... I'll have to come up with something

Wall board taped and mudded, walls and ceiling primed and wiring mostly complete.

So what's happening:

• Found and ordered the main seating, the projector, and the screen
• Drawn the seating on the floor to figure out the rest of the platform and sub placement. Spacing is a bit tight for the left and right subs (the picture above is one placement for the R sub and R wide. This location is doable but not great. The right wide placement really wants to be over that sub. Idealy I'd like to stand the sub up but i'm afraid it may effect any wanted reflections off the wall and might be in the way of the wide. Think I'll have to setup the LFRs and try the subs in different locations ... there are only a few locations which are viable and none are ideal. I want to try this now in case I need to push the seating back a bit. (the cheap seats in front of the main seats is another reason to move it back a bit)
• Choosing paint colors and thinking about aesthetics. So far think the screen wall will be black and the ceiling a dark grey. Have a few ideas for the side and back walls. Hopefully painting will happen next week.
• Modifying the speaker boxes which haven't been installed yet. One of the box's screws is too close to the holes in the wall board. On the first ceiling box I did the screw fell into this hole and stripped some insulation off both wires. I found this out by measuring the wire resistance (talk more about that later). Turned out the wires were not touching but that the sealant I'm using is slightly conductive. What a mess cleanish that stuff up ... and painful getting it off the wires inside a hole. Think I can fix the wires but it's tight. The changes to the speaker boxes is to drill a screw hole in a different place and attach spacers to keep the wires away from the screws. In addition i'll add spacers to hold the box flat ... print those this weekend

There is more but this what i'm working on at the moment.

Opposing surfaces appear parallel. Is that so?

Yes they are parallel. I did toy with a design where the walls stepped out a few inches over a 5' span and then fell back like a ramp wave but tossed it due to lack of room. The drop back contained LED lighting to light the ramp in front of it ...