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[ Wiring Questions on Ceiling Mounted FP ]

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Old 11-06-2005, 01:21 PM   #1 of 3
Craig.c
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Wiring Questions on Ceiling Mounted FP


I hope this is the correct forum for these questions as I'm a newbie.

I'm about to set up my first FP system and have a few questions related to the wiring.

First let me describe the room. Its a multi-purpose room not a dedicated HT, although when using the FP it will be dark. The issue is that it is fully finished, including a drywalled ceiling, and thus getting wires in place and aesthetics are issues.

My FP will be about 17 ft from the screen, directly over the seating area, but I expect the the wiring will need to be 30-40 ft as I'm positive it won't go straight.

Initially I will be running component from my HD receiver, and DVI from the DVD to a Panasonic AE-900.

I know in a few years I will upgrade to a 1080p projector when they come down in price, and be connecting through a video processor. I'm getting a screen in 2:35 aspect ratio to go constant hight eventually.

Given that I want all the wiring I need for down the road, put in place now that leads to several questions.

1. Are there any particular specifications I need on the cable I put in place now, to handle 1080p feed down the road, other than just buying quality cables from some of the sponsors on this site?

2. I would like to put a component/DVI connection plate in the ceiling rather than wires going through a hole. Does this impact the picture quality at all?

3. I would like to have an electrician put a plug in the ceiling near the FP. Is there any way to use a power conditioner in that type of set up?
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Old 11-06-2005, 08:54 PM   #2 of 3
Jay Mitchosky
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Quote:
1. Are there any particular specifications I need on the cable I put in place now, to handle 1080p feed down the road, other than just buying quality cables from some of the sponsors on this site?
Nothing that I have read suggests a different cable structure for 1080p other than what you already have in mind (ie. DVI/HDMI).

Quote:
2. I would like to put a component/DVI connection plate in the ceiling rather than wires going through a hole. Does this impact the picture quality at all?
Any connection break has the potential to compromise signal quality and introduces opportunity for interference. To minimize this you would have to ensure very high quality cables running from the equipment area and terminating at the wall plate. More important is that the terminations would have to be pristine, either cleanly soldered or with a very robust solderless system. Also remember that this connection and "inner" cable will be your bottleneck for overall cable quality; patch cables from the projector to the plate will be limited by the rest of the run. Your biggest challenge will likely be finding a plate that has DVI compatibility (not knowing how that cable is structured, it may just need an RBG type interface).

You can still create a clean installation without a plate using a simple wire grommet, available at Home Depot or the like. I painted mine to match the ceiling and all that shows is the small exit hole. Picture is lousy but you get the idea:



This allows for a continuous wire run without the above hassles. I had the advantage of a new home construction and was able to run PVC to the equipment area.

Quote:
3. I would like to have an electrician put a plug in the ceiling near the FP. Is there any way to use a power conditioner in that type of set up?
I considered the very same thing and ultimately chose to install a medical grade outlet (you can also see it in picture above). It has built-in surge suppression and EMI/RFI filtering. Clearly not going to be as robust as, say, a Furman rig or such but it should do the job. I can't remember which manufacturer but if you're interested I can look it up. Alternatively I recall a product that is a smallish block, not much bigger than a gang box, that has built in surge and filtering and would plug directly into the outlet, with your projector plugged to that. I recall very positive reviews. No idea re: name - perhaps someone here can help.

ADDENDUM: Flash of insight and I remembered it is a Leviton plug. More information on their hospital grade units here. Can't figure out which specific model. It's a 20A version, grey in color. I also installed these for the subwoofers.



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Old 11-12-2005, 06:56 AM   #3 of 3
Matthew Bryde
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Jay, that's a GREAT idea - using the "wire grommet". I ended up using a wall mounting plate and cut the sides out to avoid making huge unsightly holes for plugs. It does the job and I thought was quite ingenious - as it caters for any sized plug and is future proof, but your idea is less obvious and hence better.

Noted for "next time"...


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