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#147478 - 09/13/06 12:40 AM Coax Cables vs RCA cables
DrunkenWolf Offline
veteran

Registered: 07/25/06
Posts: 133
Loc: Issaquah, WA
Is there a difference? I'm using an old RCA cable that must have come with my first DVD player or my last VCR to connect my AVR to my sub.

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#147479 - 09/13/06 01:01 AM Re: Coax Cables vs RCA cables [Re: DrunkenWolf]
nickbuol Offline
connoisseur

Registered: 09/16/04
Posts: 4333
Loc: Marion, IA
For a powered sub, just about any RCA cable will do. It is only sending a low power signal to the sub, unlike your main speakers which get the signal an power running across them.

Obviously with long runs, higher quality cables may play a bigger factor in noise resistance, better build construction (longer cable means higher risk of possible break somewhere in the wiring, especially with an "old" cable).
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#147480 - 09/13/06 01:10 AM Re: Coax Cables vs RCA cables [Re: nickbuol]
DrunkenWolf Offline
veteran

Registered: 07/25/06
Posts: 133
Loc: Issaquah, WA
Cool, that's what I figured. It's a 3' cable. I had some guys run wire through my wall today for my surrounds and they pointed out the subwoofer wire to my wife so I figured I'd double check.

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#147481 - 09/13/06 01:40 AM Re: Coax Cables vs RCA cables [Re: DrunkenWolf]
BrenR Offline
connoisseur

Registered: 12/10/03
Posts: 3602
Loc: Winnipeg MB Canada
Just an upsell/installation guys learning everything from their money-hungry masters kind of thing.

Bren R.

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#147482 - 09/13/06 08:14 AM Re: Coax Cables vs RCA cables [Re: DrunkenWolf]
bridgman Offline
axiomite

Registered: 08/25/04
Posts: 5256
Loc: Bowmanville, Ontario, Canada
In case it helps, just wanted to make it clear that "coax" and "RCA" are really talking about different things.

A coax cable uses coaxial wires (one inside the other) between the connectors, and can use RCA or other connectors.

An RCA cable has RCA connectors on the ends and can either use coax or regular wire.

Many, but not all, RCA cables use coax. Many, but not all, coax cables use RCA connectors.

My only concern with using a non-coax cable for a subwoofer is that coax cables are better at keeping 60 hz hum out, but for a 3 foot cable you're probably OK. If you find the subwoofer has a "hum" when no content is playing you might want to look at the cable first.

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