|
|
|
The following page was printed from RemoteCentral.com:
Thoughts on using 14AWG speaker cable to...
| |
|
Topic: | Thoughts on using 14AWG speaker cable to make a 20m RCA lead ? This thread has 12 replies. Displaying all posts. |
|
Post 1 made on Friday April 5, 2024 at 07:55 |
james_aa Long Time Member |
Joined: Posts: | January 2018 236 |
|
|
What are your thoughts on using a 14AWG speaker cable to make a 20m RCA lead ?
We need a point to point RCA run through a property but the cable hasnt been installed at first fix stage, but we have a spare 14AWG un screened speaker cable in this location.
If we put RCA ends on it do you think it would work, or do you think it would pick up to much interference or have other issues ?
|
|
Post 2 made on Friday April 5, 2024 at 08:42 |
lippavisual Senior Member |
Joined: Posts: | December 2007 1,465 |
|
|
If it’s not shielded it’s not worth it.
|
|
|
Post 3 made on Friday April 5, 2024 at 11:01 |
highfigh Loyal Member |
Joined: Posts: | September 2004 8,327 |
|
|
For line audio? I would never recommend doing it but I guess you could test it.
|
My mechanic told me, "I couldn't repair your brakes, so I made your horn louder." |
|
OP | Post 4 made on Monday April 8, 2024 at 14:17 |
james_aa Long Time Member |
Joined: Posts: | January 2018 236 |
|
|
On April 5, 2024 at 11:01, highfigh said...
For line audio? I would never recommend doing it but I guess you could test it. If we where able to run a new cable what would you suggest ? We will probaly run a cable and make off the ends ourselves, but not sure what cable to run
|
|
Post 5 made on Monday April 8, 2024 at 20:47 |
lippavisual Senior Member |
Joined: Posts: | December 2007 1,465 |
|
|
For just stereo audio?? RG59 or 6, CatX, planetwaves cable, 18 or 22/4 stranded and shielded.
Pick your poison.
|
|
|
Post 6 made on Tuesday April 9, 2024 at 08:12 |
SWFLMike Long Time Member |
Joined: Posts: | January 2007 356 |
|
|
If it's a 14/4, you could try putting XLR ends on it, then adapt it back to un-balanced with an XLR to 1/4" adapter. I don't know how well it would work in terms of noise, and it would also require 3 conductors to get only 1 channel of audio, but it's an idea.
With a Cat5/6 this would be easy work for any passive balun, I think. I've used the Liberty AVO-A4 for that.
|
|
Post 7 made on Tuesday April 9, 2024 at 08:46 |
highfigh Loyal Member |
Joined: Posts: | September 2004 8,327 |
|
|
On April 9, 2024 at 08:12, SWFLMike said...
If it's a 14/4, you could try putting XLR ends on it, then adapt it back to un-balanced with an XLR to 1/4" adapter. I don't know how well it would work in terms of noise, and it would also require 3 conductors to get only 1 channel of audio, but it's an idea.
With a Cat5/6 this would be easy work for any passive balun, I think. I've used the Liberty AVO-A4 for that. Line audio needs to be shielded or at the least, twisted pair. Speaker cable has no way to reject noise. That said, the soil should limit this, but if it's run parallel to powerlines, nothing is off the table. XLR isn't made or used for high power and the losses post amplification over long distance makes this a tricky problem.
|
My mechanic told me, "I couldn't repair your brakes, so I made your horn louder." |
|
Post 8 made on Tuesday April 9, 2024 at 08:52 |
highfigh Loyal Member |
Joined: Posts: | September 2004 8,327 |
|
|
On April 8, 2024 at 14:17, james_aa said...
If we where able to run a new cable what would you suggest ? We will probaly run a cable and make off the ends ourselves, but not sure what cable to run Is this in conduit? Would the replacement cable be in conduit? I would recommend direct burial cable, even if conduit is used- there's no way to guarantee moisture won't enter. I used thin Belden cable when I had to run audio from a house to a shed, in conduit, with an Art Clean Box to convert from high impedance to low impedance line audio with level controls.
|
My mechanic told me, "I couldn't repair your brakes, so I made your horn louder." |
|
Post 9 made on Tuesday April 9, 2024 at 14:44 |
SWFLMike Long Time Member |
Joined: Posts: | January 2007 356 |
|
|
On April 9, 2024 at 08:46, highfigh said...
XLR isn't made or used for high power and the losses post amplification over long distance makes this a tricky problem. For sure, it just sounds like this isn't amplified (maybe I missed that). The 1 pin would be a 'ground' less than a 'shield'; I'm not sure how the whole common mode rejection thing would work with a conductor that's not a shield...so I probably should have put a heavier emphasis on the 'try' part.
|
|
Post 10 made on Tuesday April 9, 2024 at 16:21 |
Mac Burks (39) Elite Member |
Joined: Posts: | May 2007 17,519 |
|
|
In a home theater where we had a 35' RG59 and a 16/4 ran between a surround receiver and a powered sub...
The RG59 was causing a crazy hum in the sub. The 16/2 was ran JIC we went with a passive sub. Out of desperation i soldered an RCA male at each end of the 16/2 and it worked just fine.
Whatever caused the hum with the RG59 wasn't bothering the 16/2. I don't remember what the RG59 was but we used it often for line level audio back then. Never had any issues with it until that subwoofer.
|
Avid Stamp Collector - I really love 39 Cent Stamps |
|
Post 11 made on Wednesday April 10, 2024 at 10:38 |
highfigh Loyal Member |
Joined: Posts: | September 2004 8,327 |
|
|
On April 9, 2024 at 14:44, SWFLMike said...
For sure, it just sounds like this isn't amplified (maybe I missed that). The 1 pin would be a 'ground' less than a 'shield'; I'm not sure how the whole common mode rejection thing would work with a conductor that's not a shield...so I probably should have put a heavier emphasis on the 'try' part. Most Category cable isn't shielded, it's twisted. That twist rejects common mode interference. The OP mentioned that it would be for a 20 meter RCA lead- Pin 1 is for grounding/lifting ground if needed and pins 2 & 3 carry the signal, on a twisted pair but by original design, with balanced LoZ circuits. There's no need for large conductors but the cable usually has shielding of some kind, as you probably know. I agree that it's worth a shot, but I'm not confident that it would be noise-free. Some kind of balun/isolation would be a good idea, too.
|
My mechanic told me, "I couldn't repair your brakes, so I made your horn louder." |
|
Post 12 made on Wednesday April 10, 2024 at 17:21 |
buzz Super Member |
Joined: Posts: | May 2003 4,387 |
|
|
I can’t find them at the moment, but in the past I’ve seen RF ‘boxes’ that can encapsulate and send audio or video over just about any conductor. They were from companies that I would not normally do business with, but they had impressive demos at trade shows. Probably not very appropriate for this case, but here’s an example ‘box’.
|
|
Post 13 made on Wednesday April 10, 2024 at 18:58 |
lippavisual Senior Member |
Joined: Posts: | December 2007 1,465 |
|
|
On April 9, 2024 at 16:21, Mac Burks (39) said...
In a home theater where we had a 35' RG59 and a 16/4 ran between a surround receiver and a powered sub...
The RG59 was causing a crazy hum in the sub. The 16/2 was ran JIC we went with a passive sub. Out of desperation i soldered an RCA male at each end of the 16/2 and it worked just fine.
Whatever caused the hum with the RG59 wasn't bothering the 16/2. I don't remember what the RG59 was but we used it often for line level audio back then. Never had any issues with it until that subwoofer. The RG59 was most likely causing a ground loop. Differential in electrical phases would be my guess. The circuit used for your rack was on a different phase than the circuit being used for the sub.
|
|
|
|
Before you can reply to a message... |
You must first register for a Remote Central user account - it's fast and free! Or, if you already have an account, please login now. |
Please read the following: Unsolicited commercial advertisements are absolutely not permitted on this forum. Other private buy & sell messages should be posted to our Marketplace. For information on how to advertise your service or product click here. Remote Central reserves the right to remove or modify any post that is deemed inappropriate.
|
|