Subwoofer cable & connectors.
Subwoofer cable & connectors.
Author
Discussion

Tony Starks

Original Poster:

2,371 posts

236 months

Thursday 1st December 2016
quotequote all
I'm not spamming HC & HF honestly biggrin

I'm under the impression that normal TV aerial coax can be used as subwoofer cable? is it also the same connectors or can I buy sub ones seperatly?

Alex biggrin

KamSandhu44

277 posts

192 months

Thursday 1st December 2016
quotequote all
No, you need a RCA cable. Like so...

https://www.amazon.co.uk/AmazonBasics-Subwoofer-Ca...

S6PNJ

5,775 posts

305 months

Thursday 1st December 2016
quotequote all
Surely it depends on your Sub Woofer connections? Mine takes speaker inputs and so any cable (pretty much) CAN (not necessarily SHOULD) be used. I'm currently using some spare Cat 5 Ethernet cable I had after reading somewhere that it is a good cable to use. Assuming your sub doesn't need RCA level inputs, then coax will do fine as it has 2 separate conductors and that is all that is required. I've also heard good things about twin and earth mains cable and subs!

More info here regarding using Cat 5 cable for subs. And some more here.

Edited by S6PNJ on Thursday 1st December 09:12

toohuge

3,469 posts

240 months

Thursday 1st December 2016
quotequote all
KamSandhu44 said:
No, you need a RCA cable. Like so...

https://www.amazon.co.uk/AmazonBasics-Subwoofer-Ca...
That looks like a coaxial cable....

Yes OP - you're idea will work.

TonyRPH

13,474 posts

192 months

Thursday 1st December 2016
quotequote all
If you're using the low level output, then using TV coax is possible, however getting phono plugs on to it is challenging unless you but the expensive plugs with a large cable inlet.

The cost of said plugs is quite high, so you might as well buy a decently shielded RCA to RCA (also known as phono to phono) cable.

From a more technical viewpoint, coax cable has an impedance of 75 ohms, most screened cable used for RCA connectors is also around 50 - 75 ohms.

The cable recommended above by "KamSandhu44" is ideal though.

With subwoofer cables, good shielding is essential, otherwise they are prone to picking up 'hum'.


KamSandhu44

277 posts

192 months

Thursday 1st December 2016
quotequote all
toohuge said:
That looks like a coaxial cable....

Yes OP - you're idea will work.
This would be a coax cable

http://uk.rs-online.com/web/p/products/1115478/?gr...

Goes in the back of the TV. Or am I getting it wrong?

TonyRPH

13,474 posts

192 months

Thursday 1st December 2016
quotequote all
KamSandhu44 said:
This would be a coax cable

http://uk.rs-online.com/web/p/products/1115478/?gr...

Goes in the back of the TV. Or am I getting it wrong?
Most shielded cable is coaxial.

e.g. there is a centre conductor surrounded by a braided copper shield.

The shield quality does vary greatly between cables though.


Tony Starks

Original Poster:

2,371 posts

236 months

Thursday 1st December 2016
quotequote all
Ahh, ok. Thanks.

the guy at the tv shop said aerial cable is good and priced well as I need 20m. An electrical supplier should be able to do RCA in the lengths I need or is it more specialist than that. Cheapest Ive found in NZ is $150 for 15m. Hence trying to make my own.

TonyRPH

13,474 posts

192 months

Thursday 1st December 2016
quotequote all
That sounds outrageously expensive.

You can buy decent quality screened cable cheaper than that from Farnell etc.

ETA: Farnell has "Van Damme" (good cable) - this is single core, £1.52 per M.

This and two RCA plugs and a bit of soldering is all you need.

I'm sure you can get stuff like this in NZ for similar prices?




Edited by TonyRPH on Thursday 1st December 10:00

Tony Starks

Original Poster:

2,371 posts

236 months

Friday 2nd December 2016
quotequote all

TonyRPH

13,474 posts

192 months

Friday 2nd December 2016
quotequote all
Tony Starks said:
Yes, that'll be absolutely fine.

It looks like a good quality cable.

Even though it's intended for "Digial*" (sic) it'll be perfect.

  • that's what's printed on the cable in one of the pics lol.
Edit This is even cheaper and will also do the job (although it has nasty looking plastic plugs)

http://www.trademe.co.nz/electronics-photography/h...

If you're happy with the crappy plugs then fine... :-)

Edited by TonyRPH on Friday 2nd December 08:54

Tony Starks

Original Poster:

2,371 posts

236 months

Friday 2nd December 2016
quotequote all
Nice one thanks Tony

Now, if you want to come and run it for me, that'd be great biggrin.

Edited by Tony Starks on Friday 2nd December 18:24