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Joined: Feb 2009
Posts: 664
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Joined: Feb 2009
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I have a client who is building an addition to his house. He's putting in two home theater areas (one kind of high end, one low end). The AV/network/telco utility closet is right by the main home theater area. The TV is going on one wall about 20' away from the AV/network/telco utility closet. My thought was to purchase one 25' HDMI cable and put in an HDMI Coupler keystone, to hook up his new flat panel TV that is going on the wall back to the AV closet where the receivers/BD players and all that stuff is.
He has a second home theatre on the first floor about 50' cable length away from the AV closet. I've read conflicting stories when doing a Google search about HDMI max cable length, most of them saying technically the HDMI spec doesn't have a maximum cable length, but a spec for loss in order to stay compliant with the HDMI standard.
Are 50' unamped HDMI cables okay for that length? Is it necessary to get HDMI baluns & CAT5e to hook up that TV?
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Joined: Sep 2010
Posts: 41
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I'd go with the baluns, not because of the distance (although that's a good enough reason on its own), but for ease of installation. Fishing 1 or 2 UTP cables is going to be significantly easier than fishing a connectorized HDMI cable.
-- - Adam
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Joined: Feb 2009
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I forgot to mention that the drywall is not up yet. So running cables is a sinch. I believe the EC will run the cable himself. The baluns I looked at seemed to be priced from $100 to the sky is the limit. Wasn't sure if there was a big difference between them or not.
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Joined: Sep 2010
Posts: 41
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Instead of having him run the cable, ask if he can run central vacuum tubing between the locations, with a pull string installed. It's rated for in-wall use, and its big enough to pull connectorized cables through after the fact, in case you want to add or change technologies.
If you want to have wall plates on either end, make sure that he doesn't install actual vacuum mounting plates, because then you won't be able to fit a cover plate that protrudes back into the wall. Have him leave the conduit stub almost flush with the stud, and hang a 2-gang mud ring next to it. Easy and future-proof.
-- - Adam
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Joined: Jan 2007
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Joined: Feb 2009
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Interesting. One CAT5e run is kind of nice. All of the other units I saw required 2 CAT6. These are only HDMI 1.3. Does that matter? I know 1.4 spec is out now. The walls of the addition are poured concrete inside of styrofoam concrete forms. I didn't see any central vac lines installed, though that may have been later. My client did mention about having a central vac installed. My guess is that all of the ports for the central vac will be installed into interior walls, which the TV and AV equipment is not mounted on.
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Joined: Jul 2011
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I've runned 50ft HDMI without any problem with out picture degradation.
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Joined: Jul 2011
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Also checkout www.cablewholesale.com for decent price on HDMI and other cables.
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Joined: Jan 2008
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Nope, I run them all the time. Just ran 15 50ft HDMI to adapted DVI cables this week for a dental office. They work just fine.
www.myrandomviews "Old phone guys never die, they just get locked in some closet with an old phone system and forgotten about" Retired, taking photographs and hoping to fly one of my many kites.
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