Jump to content
The Klipsch Audio Community
Sign in to follow this  
Alexander

Coax cable used in interconnects - impedance effect on equipment?

Recommended Posts

Um... electromagnetic waves...

Share this post


Link to post
Share on other sites

here is a tip. you can use a coax for an interconnect and some will even sound pretty good but they will all sound like a coax cable, a twisted pair will sound better and a solid core twisted pair will sound better than a stranded (22 - 24 gage is fine). I am not a fan of teflon dielectrics and the like I much prefer high speed PVC as used in data cables or PE or PP dielectric use a dielectric with a high thermal melt point so you don/t get shorts soldering it. Don't worry about impedance an RCA connector is a 50 ohm connector and you will have a hard time finding a 50 ohm twisted pair. Why a twisted pair simply because it will reduce picked up noise simple as that (you cab hand twist your own with a drill just be gentle with them use cat6 wires, the more twists per foot the lower the noise).

   This is just my opinion and everybody has them. I have however been building cables since 1988 and I would always choose to listen to a twisted pair over a coax as an analog interconnect. There are a host of things that you can do to change how a cable will sound (things as simple as the direction of the wire to cryogenic treatment) and what you do is far more important than the materials you use to build it. Experimenting is the very best way to learn how to build a good sounding cable. The process is also beneficial to developing your listening skills and organizing your thought process. This all takes time I have done it but I can now build a cable that can stand with the best out there. The other nice thing about building your own cables is that you can build to suit your taste you can make the cable sound the way you want it to. My only other advice to you if you decide to go on a trek of learning how to build good sounding audio cables is not to ever look at what anybody else is doing best to follow your own path. You can learn to do this yourself more effectively than you can by copping the mistakes/work of others. The other advantage of this is that you will never find yourself in court being sued for patent infringement that way and the best reason of all is you can call your work your own and you can be proud of it and that is a feeling you cannot buy.

  • Like 1

Share this post


Link to post
Share on other sites
12 hours ago, Schu said:

Um... electromagnetic waves...

 

Yep.  And depending on the frequency, we can use them to energize voice coils directly, transport information (near or far, with wires or without), or see them reflected off objects in our environment.  I'm glad we got 'em!  They're pretty useful little buggers.

Share this post


Link to post
Share on other sites
19 hours ago, Edgar said:

as suggested in a subsequent post, the quarter wavelength in the cable is 2810.554294 meters

 

Are you rounding up or down?

 

 

Share this post


Link to post
Share on other sites
16 hours ago, glens said:

Radio (light) waves vs. audio (sound).  20kHz is a long radio wave.

 

That may be well and good, but we are discussing audio interconnects are we not?

 

To me, the larger issue is capacitance, which can cause high freq. rolloff over longer cables.

Share this post


Link to post
Share on other sites
27 minutes ago, Coytee said:

 

Are you rounding up or down?

 

 

 

Nice, funny comment.☺️

 

One rule of thumb is to "round to even."  The even number target might required rounding up or rounding down.  But it avoids accumulating errors from always up or always down.

 

WMcD

Share this post


Link to post
Share on other sites

We did a following 5 only rounds up an odd number, thus with two-decimal figures you don't end up with 1.01 when adding 3/8 to 5/8.

Share this post


Link to post
Share on other sites
5 hours ago, Coytee said:

Are you rounding up or down?

 

I was being flippant.

Share this post


Link to post
Share on other sites
2 hours ago, Edgar said:

 

I was being flippant.

 

Well, I caught it right off ;)

Share this post


Link to post
Share on other sites

  I agree with Moray here. I build my own. For RCA like Eichmann connectors, with twisted pair and a braided shield. 

  There was an article in Stereophile about some interconnects around 1990. The reviewer had a PhD or close in physics. Said that copper interconnects had a propagation velocity of 200 m/sec at 1 KHZ. Then claimed these Lindsey Geyer or something had a propagation velocity of almost the speed of light in a vacuum. This difference in the speed of the waves or electrons was so much different and made the non-copper cables much superior. 

    Typical high end cable review.

Share this post


Link to post
Share on other sites
13 minutes ago, Panelhead said:

 Said that copper interconnects had a propagation velocity of 200 m/sec at 1 KHZ.

 

That's less than the speed of sound in air. :pwk_bs:

  • Like 1

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  

×
×
  • Create New...