AVS Forum banner
Status
Not open for further replies.
1 - 7 of 7 Posts

·
Registered
Joined
·
197 Posts
Discussion Starter · #1 ·
due to size and layout conditions in my room, I may have to have a long run to the amp from the HTPC (using delta 410 card for digital out).

I want to keep the video run as short as possible, so that means the pc would be relatively close to the pj (computer on floor and to the side and pj on ceiling).


That would have me putting the amp/processor under the screen at the front of the room (no room at the back w/ seating area and the room is only ~10 wide, so w/ the sub on the side wall, there is not really any room there either), so my digital coax run would be about 20ft by the time I tucked the wire into the corners.


Would such a long run cause sync problems, or does the audio card even put out a strong enough signal to travel that distance w/o level drop?


If anyone is using extra long (20ft or more) video (VGA or VGA to rgb breakout) or digital coax w/o any adverse side effects, I'd love to hear about it....otherwise I need to re-think my room layout.


Thanks
 

·
Registered
Joined
·
249 Posts
I've got about a 20-25' digital coax run, it has no trouble at all. You should really be able to run a lot longer than that without any difficulty.
 

·
Registered
Joined
·
275 Posts
I am running a 30' coax run with no problems. I am running over an RG6 Quad coax.
 

·
Registered
Joined
·
166 Posts
500 ft - 50ohm

250 ft - 75ohm


That's the maximum distance you can run a digital signal over coax.

I already had this question about 2 months ago and did my homework.

Hope that helps.
 

·
Registered
Joined
·
3,624 Posts
There is no problem running a 20ft long cable for digital signals. I suggest using a good quality digital cable like the DH-labs D-75 (precision 75 ohms).

If you are really worried how this would affect quality, the only thing that "might" (this is subjective) is "jitter". To address the jitter issue, you can add a Monarchy DIP jitter reducer, that would also allow longer runs (much longer than you will ever need). Hope that helps.

Good luck,

-Jai
 

·
Registered
Joined
·
249 Posts
I would suggest trying with the cheapest cable possible. There's about a 99% chance you will be more than satisfied with the results. If you have problems, then look into better cable and additional components. :)
 

·
Registered
Joined
·
76 Posts
My room layout is really crazy and so I have ended up with a 25 foot video cable and a 50 foot audio cable.

The video uses a heavily shielded VGA cable which at first did show a slight shadowing effect which was only noticable with text on bright backgrounds. I upgraded to an ATI 7500 and the picture is now pixel-perfect.


For the audio I use a 50 foot TV coax cable with TV to RCA connectors. I had signal dropouts with my SB Live, but that went away when I switched to C-Media so I suspect it was a driver issue. I don't know if I have jitter since I've yet to meet anybody that has claimed they can identify jitter with the naked ear. What does jitter sound like?
 
1 - 7 of 7 Posts
Status
Not open for further replies.
Top