I want to be able to send mp3 and aac music from my computer in the bedroom to my Denon A/V receiver in the family room. I figure to up to wall into the attic, across the house, and down the wall again, will be about 70 feet or so. I have a M-Audio Audiophile 2496 soundcard with a coax digital out (rca connector) and so does my a/v receiver. Will I beable to get a strong enough signal at the other end? Does the cable have to be 75 ohm? I don't want to go will expensive Monster cables, so does anyone know where to get such a long cable at a fair price?

Hmm, if it has a digital out wouldn't it be more feasible to get a wireless interconnect for such a long distance? By the way I know Knu Konceptz for quite high quality cables free of buzz words for rather cheap. Edit: Oops I don't think they have digital cables.

forgive my ignorance, but how would I go about making the digital out wireless? Can i just hook it to one of those wireless tv units that they sale at places like Radio Shack? Who I send it on the video side (more bandwidth)?

I didn't even consider this a possiblity, so please explain how I can do it?

I never did it my speakers sit at an amazing 6 feet away from my Amp But I am sure this technology is available. You need to google a bit and read some reviews. I need to go to bed The higher the frequency (like 5.8GHz) the better the quality of the signal transfer. There must be some 802.11(x) protocol suitable for such distance but I don't know if that's what you exactly need. I don't even know how a coaxial digital out is either

Here are some links: Amphony L1000, Jensen JV2400
But I know Radio Shack rips you off and sells stuff aimed for the common folk. You wouldn't want to use sth. like that for your high quality equipment.

For coax S/PDIF, which is what you'll be using from the Audiophile, a 70 ft run is way too long. A maximum distance of 10-15 meters is normally recommended.

I've run 50+ feet from a spdif out with no discernable drop in quality. Here's what I did to keep it on cheap.

1) Bought 50 ft. RJ6 coax cable from radio shack. ($12.99)
2) Bought 2 F type to RCA adapters to connect from the coax to spdif.

For roughly $18 I had the 50 ft run. I think this would've cost $90 or so for Monster Cable

If your signal is too weak at the end you can either get a fatter, lower loss cable like rg-11, or put a repeater box in the middle somewhere. Sometimes you can get scraps of hardline from the cable company cheap/free, but the connectors are more expensive.

Ok, based on the post by atici and this website: S/PDIF Info, which at the bottm states this:



I'm going to give it a shot. My Dad has one of these units so I am going to try tonight.

I've done 50m with the cheapest cable I could find.

It worked (in an office with loads of RF), but wasn't always reliable: sometimes when the lights were turned on (20 overheard tubes) there would be a glitch.

Cheers,
David.

I also get glitches with lights with 1 meter low-loss-low-capacitance-high-frequency-double-shielded KX8 75 Ohm coaxial cable

I have a 16 meters cable without any problems. The cable I used is very cheap, but it is shielded and 75 Ohm. I tried first with some cheap twisted pair cable and that did not work out properly.

I'd say first get a simple cable, see if it works. If it does, you're done. If not, you probably need a repeater., or a signal "booster" (if you're handy you can probably build one for $1).

The great thing about digital that it either works or doesn't (sort of). So no matter how bad the cable, the signal quality won't suffer. Until it stops functioning, then you'll get no signal at all (or interrupted signals).

Ok, i finally got a hold of my Dad's video sender and gave it a shot. It mostly didn't work. I got choppy audio that sounded like a badly scratched CD.

I have a 2.4ghz unit. Perhaps a 5.8 ghz unit would have more bandwidth per channel to work. I think that was the problem. I just didn't have enough bandwidth to lock on. I even had the two units sitting in the clear about 6 feet apart. Still could not get solid sound.

The problem is that I can't find a 5.8 ghz video sender. I thought I had seen them before, but now all I see are 2.4ghz. Anyone know who makes/sales them?

Surely a video sender is sending the required video bandwidth (approx 6MHz)? What carrier frequency it uses to send this shouldn't effect the bandwidth.


btw, different TV standards use a slightly different video bandwidth. So (maybe) the person who made it work was in a PAL country, whereas the person who couldn't make it work was in an NTSC country. Maybe that could be the issue. Just guessing though.

Cheers,
David.