Feasibility of repurposing 14/4 speaker wire used to a bi-amped subwoofer for two surround speakers

mhcox

Can I repurpose existing 14/4 speaker wire already in the walls used to bi-amp a subwoofer in the back of the room to instead connect two surround speakers? The run is about 75' from the amp to the speakers. Is this even feasible since I'll have a left and right surround channels in the same shielded cable but not shielded from each other with possible crosstalk problems? If crosstalk is not an issue, how should I use the red/black/green/white wires, i.e. which colors should I use for positive and which for negative and in what combination for the surround speakers? For example, would it be "proper" to connect the left surround with the red (+) and black (-) and the right surround with the white (+) and green (-)? Is there an accepted convention for what I'm trying to do? Should I even be trying to do this?

VR3

Yes. You could even add a rear center and use one conductor to share all three grounds.

I run my l/c/r in ceiling speakers this way with a single 4 conductor run this way.

Most* Receivers are common ground so there is continuity between all negative binding post

VR3

You can use any color but I usually recommend using red black together and green white together