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Digital S/PDIF 3.5mm stereo to digital coaxial RCA cable. - Page 2

post #31 of 36
Quote:
Originally Posted by Stealth3si View Post

Quote:
Originally Posted by SAM64 View Post

where do you get this stuff from?
Coax cables are inherently shielded, otherwise they wouldn't be coaxial cable.
that's why i'm getting the high quality cable - it's coxial = shielding = more shielding > rca. i have ots of rca cables. they're not coaxial and there fore are more susepctible to noise rf interference. i say this from first hand experience.

Quote:
Originally Posted by arnyk View Post

That sounds to me like an advertising claim that was designed to impress small boys.
Reality is that excellent shielding isn't a panacea, it frequently provides no actual audible performance advantage, and that cables with outstanding shielding (e.g. Quad-shielded RG-6) are sold for pennies a foot.
I say that excellent shielding is not a panacea because on the best day of its life, shielding primarily addresses only a fraction of the noise pickup problem. Cables pick up noise from both electromagnetic and electrostatic fields, but shielding primarily addresses only electrostatic fields. For example, shielding has no effect on noise due to ground loops and most other grounding problems.
I say that excellent shielding generally provides no actual audible performance advantages because environmental noise pickup is not a serious audible problem for most interconnects. This is particularly true for digital interconnections, which are becoming more and more prevalent. Most people who are setting up systems today are interconnecting them with digital links like 100BTX digital networking and HDMI. Noise has minimal effects on digital interconnects unless the noise is so great that it actually overcomes the signal. Moderate contamination of the signal is rejected at the receiving end.
Another example is speaker cabling, where the signal is so large and robust that it has large amounts of inherent rejection of outside noise sources.
Finally, the unbelievable pricing of high end cabling is belied by the simple fact that commodity cables with incredible shielding such as quad-shielded RG6 sell for literally pennies per foot.
Nice try, but no cigar!

thanks. but i wasn't particularly impressed by what i learned....granted it doesn't improve performance but doesn't it reduce RF interference which introduce the possibility of other unwanted noises.

Of course good shielding has some effect on RFI's impact on audio cables, if its a problem. That turns out to be a big if.

The impact of RFI on audio cables is vastly reduced by the fact that the well-designed equipment receiving a signal from the cable is generally very insensitive to RFI.

Anybody who says that the sound of their system was improved by using hyper-shielded cable is basically admitting that their equipment is substandard, unless they live right next to a high-powered transmitter.

If you want to score points for fixing a problem, the problem first has to exist! ;-)

The fact that quad-shielded RG6 is somewhat of an industry standard reflects that. But the way RG6 is usually used is vastly different than how audio interconnects are used.

Improved shielding is not a justification for expensive cables because making well-shielded cable is not an expensive proposition:

http://www.markertek.com/Cables/Bulk-Wire-Cable/Bulk-Video-Cable/West-Penn-Wire-Corp/HQ841.xhtml



The everyday low cost of the above quad-shielded, high conductivity cable is less than $0.15 per foot in reasonable quantities. So, what sort of premium price would using it justify?

Quote:
i use to hear people talking from my subwoofer and speakers...like a radio ghost just passed by.

People say all sorts of crazy things on audio conferences. Of all the audio gear types that I can think of, a powered subwoofer should be near the top of the list for being insensitive to RFI. After all, a subwoofer generally rejects everything input to it above about 150 Hz. The most common real interference problem with subwoofers is due to ground loops, which are totally unaffected by the shielding of the wire.
post #32 of 36
Thread Starter 
That makes sense, at least in theory.

Do you think a 6ft RCA Plug/Plug M/M Cable - Black would work fine for connecting a power subwoofers like svs pc12-nsd to a denon 1712? it seems that cable is not shielded so won't it pick-up noise (RFI / EMI)? Also, the terminations on that cable does not seem to be reinforced and won't most inexpensive cables fail at the RCA termination point?

Would something like this work but cheaper?
Edited by Stealth3si - 11/14/12 at 11:55pm
post #33 of 36
Quote:
Originally Posted by Stealth3si View Post

That makes sense, at least in theory.

Do you think a 6ft RCA Plug/Plug M/M Cable - Black would work fine for connecting a power subwoofers like svs pc12-nsd to a denon 1712?

Yes.

I've used stuff like this and it works.
Quote:
it seems that cable is not shielded

Nahh, its shielded well enough for audio, and the item you link says so.

Quote:
so won't it pick-up noise (RFI / EMI)? Also, the terminations on that cable does not seem to be reinforced and won't most inexpensive cables fail at the RCA termination point?

I don't expect that it would be the cable of choice where the cable gets installed and removed and installed an removed a lot
Quote:
Would something like this work but cheaper?


What are you smoking man? the first cable is $0.60 and the second is $38.00

This source:

http://www.bluejeanscable.com/store/subwoofer/index.htm

Seems to be the middle road - a very durable cable and only about $20.00
post #34 of 36
Thread Starter 
Quote:
Originally Posted by arnyk View Post

Yes.
I've used stuff like this and it works.
Is this what you normally use? Have you experienced any issues due to these types of cables?
Quote:
Originally Posted by arnyk View Post

Nahh, its shielded well enough for audio, and the item you link says so.
Quote:
This is a single-channel cable with male RCA plugs with molded connector housings and strain relief boots on each end. The cable is ideal for short, low-frequency connections, such as standard audio signals. For higher-frequency signals, such as for RF or composite video, over longer lengths we recommend the use of one of our premium RG-6 or RG-59 based cables.
So the bold part says it's shielded well enough for audio, that is, the RCA jacks coming out from the PC12-NSD being analog signal?
Quote:
Originally Posted by arnyk View Post

I don't expect that it would be the cable of choice where the cable gets installed and removed and installed an removed a lot
Then what do you expect would be the cable of choice where the cable gets installed and removed a lot?
Quote:
Originally Posted by arnyk View Post

What are you smoking man? the first cable is $0.60 and the second is $38.00
uhh...I'm smoking nothing.

As a matter of fact, Jack, a SVS CSR, suggested me to get that after I showed him that monoprice link.

Not sure who to believe now...:/
Quote:
Originally Posted by arnyk View Post

This source:
http://www.bluejeanscable.com/store/subwoofer/index.htm
Seems to be the middle road - a very durable cable and only about $20.00
As far as powered subwoofer cables are concerned (i.e., SVS PC12-NSD), what other cheaper (yet durable) alternatives are there in monoprice besides the first cable I linked to? or is this the cheapest durable cable available that you can find?
Edited by Stealth3si - 11/15/12 at 2:43pm
post #35 of 36
Quote:
Originally Posted by Stealth3si View Post

As a matter of fact, Jack, a SVS CSR, suggested me to get that after I showed him that monoprice link.
Not sure who to believe now...:/

Heh, all I had to do is see "audiophile" in the name and know that you're paying $37.35 for that markup. While I'm sure Jack's a good guy, I don't think his advice is worth $37.35 in terms of cables.
Quote:
As far as powered subwoofer cables are concerned (i.e., SVS PC12-NSD), what other cheaper (yet durable) alternatives are there in monoprice besides the first cable I linked to? or is this the cheapest durable cable available that you can find?

For $.63 more, there's this.

http://www.monoprice.com/products/product.asp?c_id=102&cp_id=10236&cs_id=1023601&p_id=619&seq=1&format=2

I've also used Tartan Cable, and currently have one of these:

http://www.tartancable.com/subwoofer-cables/index.htm

Tartan is Blue Jeans Cable's budget brand. They assemble the cables here, but use Chinese built connectors. Since most of these are cheaper than a Big Mac and all work just as well, there really isn't a clear favorite. I like Tartan for the color coding, but that's just me and my OCD. Has no impact on actual performance.
post #36 of 36
Quote:
Originally Posted by Stealth3si View Post

Quote:
Originally Posted by arnyk View Post

I've used stuff like this and it works.
Is this what you normally use?

Frankly not my preference, but something I've used many, many times. For almost any relevant application it carries no SQ penalty. And even though the durability is low on a relative scale, its been decades since I've seen one fail.
Quote:
Have you experienced any issues due to these types of cables?

Not this millennium. Therefore, not this cable since cable construction is a moving target.

For example back in the day when people first tried to make cables with crimped connections there were serious reliability issues. The labor savings is huge so people kept working on crimped connections until at least the factory ones were air tight and really better than soldered. It's all about pressure. If you crimp metal hard enough and fast enough you get a metal-to-metal mashing that is like or even better than a weld. Seriously, try to tear a really good crimped connection apart and you can free up the metal-wrapped-around-metal mechanical grip and the two pieces of metal are still sticking to each other via a mechanical weld. This can be and is usually done even in most modern maxo-cheapo audio cables. Today, a well-done crimp is the gold standard for performance and reliability, and is only avoided when proper connectors for it are not available, there is a desire to be cable to repair the cable in the field.
Quote:
Quote:
Originally Posted by arnyk View Post

This source:
http://www.bluejeanscable.com/store/subwoofer/index.htm
Seems to be the middle road - a very durable cable and only about $20.00

As far as powered subwoofer cables are concerned (i.e., SVS PC12-NSD), what other cheaper (yet durable) alternatives are there in monoprice besides the first cable I linked to? or is this the cheapest durable cable available that you can find?

The group titled "Premium Analog RCA Cables" on http://www.monoprice.com/products/subdepartment.asp?c_id=102&cp_id=10218 looks like what I buy when I'm looking for RCA cables.
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