How to extend a specific Audio Cable

[mvaio]

I have an older Aiwa system (NSX-MA845) where the Speakers have 2 bare 'speaker wire' cables + a blue double wire cable culminating in a single male RCA plug for the subwoofer.

The problem is that I now have the main Aiwa unit further away than the cables will allow, so I need to extend them. The speaker wire lines are no problem but I'm not sure what type of cable I need to extend the subwoofer line

Can anyone help?

Is there a specific type of cable used to extend this type of line?

... or can I split the Male RCA with a x2 RCA coupling, extend them with a normal pair of RCA cables, combine them back again with another coupling into a single male RCA connector and put that into the female RCA in the back of the unit?

Any help would be appreciated.

 

[sovereignturf]

I have an older Aiwa system (NSX-MA845) where the Speakers have 2 bare 'speaker wire' cables + a blue double wire cable culminating in a single male RCA plug for the subwoofer.

The problem is that I now have the main Aiwa unit further away than the cables will allow, so I need to extend them. The speaker wire lines are no problem but I'm not sure what type of cable I need to extend the subwoofer line

Can anyone help?

Is there a specific type of cable used to extend this type of line?

... or can I split the Male RCA with a x2 RCA coupling, extend them with a normal pair of RCA cables, combine them back again with another coupling into a single male RCA connector and put that into the female RCA in the back of the unit?

Any help would be appreciated.

Here are a bunch of rca adapters that are common and easily accessible , have a look maybe you can find what you need.
RCA Adapters

 

[americanaudiophile]

Since the subwoofer cable is speaker wire rather than the usual interconnect cable the best option would be to cut the wire and splice 16g or larger 2 conductor speaker cable. Some electrical tape is all you need.

 

[mvaio]

Thanks for the suggestion.