MCM has wall plates that are split and large size pass through holes for 
oversize connectors. They also have cables (HDMI, Audio, component 
video) in various lengths. The are a division of Newark and into 
Professional video and sound, SATV, CATV, security, and some computer 
stuff. If you order from them, they send sale flyers with good prices.
http://www.mcmelectronics.com/search.aspx?C=&K=wall%20plate

Could take a plain piece of plastic or metal, drill a hole and a grommet 
that has been split on one side for the cable to pass through, 2 screw 
holes, and split with a saw to allow the cable to get the hole. Paint to 
match.

Also they have Baluns (some desktop or Keystone plate type) for various 
TV, computer (VGA,mouse, Keyboard) and sound that allow use of Cat-5 
cable in the wall. Friend in the TV distribution (stations, apartments, 
commercial etc.) (and they probably weren't MCM's) claims these don't 
work well even short length  for HDMI. Does anyone have experience with 
CAT-5 for HD tV, either HDMI, or HD component and Cat-5?

Electron wrote:
> Hi all,
> first of all please forgive my bad English, it is not my native language.
> I need to pass 25 meters of HDMI cable through a wall, but the connector is too
> large to pass through the "tube", so I have to cut it and resolder it. I wonder
> if it will work, given the bandwidths of HDMI, or if signal reflections etc..
> at the soldered points will degrade the signal too much. I wanted to ask here
> before I ruin a 25m cable and do much useless work.
>
> Thanks a lot,
> Mario
>
>   
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