Analog Cable Help

[esldude]

I've measured some things like this.  Even balanced if touching the romex most of the way you might get some hum into it.  The level is likely inaudible, but not beyond measuring.  Move it even a few inches and it is gone.  This is with the cables running parallel.  If it were just crossing the romex a time or two no problem. 

 

It also will matter if the gear is truly balanced or pseudo-balanced with such close proximity.  What the CMRR is. 

 

For a permanent thing like this, I'd investigate a separate conduit.  The rule of thumb in recording studios running mic cables is if they have to parallel power feeds to be 3 to 6 inches away from the power lines. 

 

You also might think about using baseboard cable raceways to run the xlr. 

https://www.amazon.com/D-Line-Raceway-1D3015M-Surface-Electrical/dp/B07C5DTCMM/ref=sr_1_6?keywords=baseboard+cable+raceway&qid=1576795979&sr=8-6

 

The above is one example as there are many. 

[esldude]

6 minutes ago, The Computer Audiophile said:

I may be able to run this conduit. If, the XLR connector will fit through it. 

 

1 in. x 50 ft. Galflex RWS Metallic Armored Steel Flexible Conduit

 

https://www.homedepot.com/p/Southwire-1-in-x-50-ft-Galflex-RWS-Metallic-Armored-Steel-Flexible-Conduit-55091601/202935698

 

 That would work.  XLR's are about 3/4 inch diameter.  But the smurf plastic conduit mentioned earlier would be just fine if it keeps the two lines separated.  

 

Also, you can run the cable itself without connectors thru a small conduit and then install the XLR ends once it is thru the conduit if that makes life easier.  

[esldude]

8 minutes ago, The Computer Audiophile said:

 

True, I'm not sure how to pull the cable through that many feet. 

 

I'm sure I can find someone local, but I hate to call them over for a 30 second job like this. 

Usually they'll pull string thru with a vacuum, and then use that to pull cable, but it does complicate things if the conduit has another cable in it.  

[esldude]

 

 

 

[esldude]

7 minutes ago, sandyk said:

 

Did you have some sardines or something near the distant end ?

I'm picturing something a little different.  First you tie a string to the cat's tail, then you release a mouse to run thru the conduit and then the cat chases the mouse to the other end of the conduit.  But maybe sardines are better as you don't need the mouse. 

[esldude]

1 minute ago, mansr said:

No need. The cat in question loved crawling through tubes. He was a strange cat.

I need to run some CAT6 thru some conduit soon, but I need bigger conduit or a smaller cat.

[esldude]

3 minutes ago, mansr said:

They sometimes use ferrets to pull cables. If the conduit is too narrow for a ferret, you'll need something else. Maybe a cockroach. Apparently they can be controlled with a suitable attachment.

When I was 10 years old, I used a big June bug to pull a kite string over a tree limb.  Then used the kite string to pull a rope over the limb, and used that to make a big tire swing over a creek.  The squirrels were too hard to catch or control.  

[esldude]

Just now, mansr said:

I don't know. It was a Schrödinger cat.

You were using Synergistic Research Quantum cable?

[esldude]

9 hours ago, The Computer Audiophile said:

Great stuff. My network is all UniFi. 

Yep, without Ubiquiti I wouldn't have internet.  Pretty much look at them first for any networking or wireless needs.