[digital_dilemma]

I have a question. I'm dealing with a VERY ANAL RETENTIVE AV engineer on a project. I have a simple 6' run from a DVD player, through the wall, and up to an LCD television. The video signal is component. I have 5-wire RGBHV Belden 1279R (25 AWG) cable and Neutrik RCA crimp connectors.


I suggested that the simplest solution would be to use the Yellow and Black cables for Right and Left audio. He just about came unglued. I've done this MANY times before in a rental and staging environment, although those cables had BNC termination and we simply added RCA adapters.


Is there some level of significant attenuation and crosstalk issues in this short of a run by sending audio and video in this manner? Please reply if you have engineering experience with audio and can appropriately address my request for information. I already know it will work. I simply don't have the technical background to argue FOR this as a simple solution.

 

[Suntan]

I don't have anything official or scientific for you, but I'd would throw it back to him and ask him to provide you with test data that shows any difference between using it and adding separate runs of 75 ohm coaxial audio cables right next to the RGBHV cable in that same raceway/wall run.


At the end of the day, you are still going to have 3 analog runs of TV data going at about 30Mhz and two runs of audio data going at most about 20Khz all in close proximity whether you use the same cable or two different ones. Is this a big issue? I've never seen it or heard it make a difference.


-Suntan