Hi there-

I will be connecting my blu-ray player to my receiver via 7.1 analog in.

I have some extra video cables. Is it ok to use them for audio?

Specifically for SW and Center.

Thanks,
KS

Yep, no problem.

Yep, no problem.
Thanks for your quick response. What is the real difference?

Thanks for your quick response. What is the real difference?

I'm curious about this one as well. I have my Panny BD-30blu-ray player running 6 ch analog out > Denon AVR-5700. I'm using some spare component video cables (AR brand) for the 6 ch. audio run. I'm also running optical out between the two components. When i switch on the 6 ch ext on the Denon, I get a faint buzz in the speakers. Switch the same source over to optical digital, i get no buzz. I want to keep the 6 ch analog going for lossless PCM.

I haven't swapped out the cables yet, but i'm wondering if that's the problem, or whether there is something wrong with the 6 ch feed in my Denon. . .

Thanks for your quick response. What is the real difference?

I do not think there is a real difference in the cable build... both have RCA connectors on them and both are RG6 or RG59 coax.

Thanks for your quick response. What is the real difference?

Video cables need to be 75ohm cables. Audio cables do not, so audio cables may be the wrong impedance for use with video. Additionally, video cables need to have higher bandwidth than analog audio, which only goes to say 20khz really, maybe a bit more if you want to be plenty safe, whereas video is in the megahertzeses.

Good video cables, to achieve 75ohm performance, will inherently have relatively low capacitance, which is important for analog audio, so while you can improve on that a little bit by deviating from 75ohms, the point is that a good quality video cable also makes an excellent analog audio interconnect.

However, as above, the reverse is not true since analog audio cables may not be 75ohm, which makes them inappropriate for use as video cables, or digital audio interconnects (which also require 75ohm cabling).

since analog audio cables may not be 75ohm

Very true, I should have qualified my statement that nothing is different....You definitely need RG6 or RG59 (75ohm) cable for video but the same cable can be used for audio.

Very true, I should have qualified my statement that nothing is different....You definitely need RG6 or RG59 (75ohm) cable for video but the same cable can be used for audio.

Absolutely. You'll also find that in A/V bundles, it's often all the same wire(easier to make, cheap), usually rg59 coax, which will be perfectly appropriate 75ohm for video and it works great for audio too.

You just have to be careful with speciality audio cables or cables expressly made for audio cabling, particularly pro-audio stuff, often it will be twisted pair(obviously not 75ohm), or non-75ohm coax. To use that for video you need to use baluns, you can't just connect it directly since there's an impedance mismatch, which especially with HD and over distance can cause major reflection/ghosting problems.

But a good video coax, and you're absolutely good to go for basically anything you want!

I assume "digital coax" cables would also work just fine as standard analog audio cables?

I assume "digital coax" cables would also work just fine as standard analog audio cables?Yep. A "digital coax cable" is simply a cable that is 75ohm. It is identical to "video cable" and the 2 can be used interchangeably. Of course, it will also work fine as an "audio cable".