Subwoofer cable

[willz]

I've moved my sub to the side of the sofa, the current cable is not long enough and has to trail along the floor.

I'm considering a 10m long RCA subwoofer cable, would this length cause any problems or should it be fine?

 

[IWC Dopplel]

Should be fine, try to ensure the central core is a decent gauge and I would use a sheilded design, with the shield eatherd at one end. I prefer RCA cable that is dual core so ground and hot are central (most but not all are like this). Also avoid running in parallel to mains cable for long runs if you can